34 .80 7IRELESS IMPORTANT NOTICE Dear customer, As from August 2nd 2008, the wireless operations of NXP have moved to a new company, ST-NXP Wireless. As a result, the following changes are applicable to the attached document. Company name - Philips Semiconductors is replaced with ST-NXP Wireless. Copyright - the copyright notice at the bottom of each page "(c) Koninklijke Philips Electronics N.V. 200x. All rights reserved", shall now read: "(c) ST-NXP Wireless 200x All rights reserved". Web site - http://www.semiconductors.philips.com is replaced with http://www.stnwireless.com Contact information - the list of sales offices previously obtained by sending an email to sales.addresses@www.semiconductors.philips.com, is now found at http://www.stnwireless.com under Contacts. If you have any questions related to the document, please contact our nearest sales office. Thank you for your cooperation and understanding. ST-NXP Wireless 34 .80 7IRELESS www.stnwireless.com TEA5777 Low-power AM/FM stereo radio for handheld applications Rev. 01 -- 11 April 2006 Product data sheet 1. General description The TEA5777 is a BiCMOS single-chip (32-pin or 48-pin package), electronically tuned AM/FM stereo radio circuit, with fully integrated IF selectivity and demodulation including local synthesized oscillator, and is intended to be used in electronically tuned radio sets. In FM mode the radio is completely alignment free and in AM mode only a minimum of antenna input alignment is required. The radio requires a minimum number of small and low cost external components. The IC communicates with a microcontroller via the I2C-bus or the 3-wire bus. 2. Features 2.1 General n High integration level of the AM and FM receiver means a very limited number of external components are required n On-board PLL synthesizer tuning function which includes VCOs, dividers, phase detectors and charge pump n FM mixer conversion for US and Europe, OIRT and Japanese band to IF n Crystal reference frequency oscillator operating at 4 MHz n External reference input frequency of 13 MHz (bus selectable) n Autonomous search function n IF counter with 1-bit output via the bus n Silent readout of mono or stereo information and IF in-window indication n Level detector with 4-bit level information output via the bus n I2C-bus or 3-wire bus n Standby mode switched via the bus n 2 software programmable I/O ports with multiple functions n Supply voltage range: 2.7 V to 7 V (typical 3 V) n Low current consumption: 9.8 mA in AM mode and 13.9 mA in FM mode 2.2 AM n n n n n n Fully integrated AM RF tuning function (no external varicap required) High-impedance MOSFET input Fully integrated AM IF filters Fully integrated AM VCO Integrated image rejection mixer structure LW and MW reception possibility TEA5777 Philips Semiconductors Low-power AM/FM stereo radio for handheld applications 2.3 FM n n n n n n n n n n n n High input sensitivity Fully integrated FM IF selectivity Fully integrated FM demodulator (no external discriminator) Integrated image rejection mixer structure RF LC oscillator operating with low cost fixed inductors (referenced to ground) FM I/Q mixer for conversion of the US, Europe, Japanese and OIRT band to IF Fully integrated, adjustment free, stereo decoder Signal dependent mono or stereo blend (with on and off function) FM stereo readout via the bus and silent readout mode RDS MPX output available Stereo decoder can be switched off via the bus Integrated anti-birdy filter 3. Applications n n n n Portable AM/FM stereo radio Mini and midi receiver sets PC radio applications GSM handsets 4. Quick reference data Table 1. Quick reference data VCCA = VCCD = 3 V; Tamb = 25 C; all AC values are given in RMS. See Figure 9 for details on the dummy inputs Vi1, Vi2 and Vi3. Symbol Parameter Conditions Min Typ Max Unit 2.7 3.0 7.0 V General VCCA analog supply voltage VCCD digital supply voltage ICCA analog supply current ICCD Tamb digital supply current 2.7 3.0 5.0 V FM mode 10 13.9 17 mA AM mode 8 9.8 11 mA Standby mode via bus control - 0.03 0.15 mA FM mode 0.5 0.8 1.5 mA AM mode 0.5 0.8 1.5 mA Standby mode via bus control - 0.13 0.25 mA -10 - +65 C 0.2 - VCCA - V 0.3 ambient temperature Tuning VO output voltage tuning voltage range on pin CPOUT TEA5777_1 Product data sheet (c) Koninklijke Philips Electronics N.V. 2006. All rights reserved. Rev. 01 -- 11 April 2006 2 of 47 TEA5777 Philips Semiconductors Low-power AM/FM stereo radio for handheld applications Table 1. Quick reference data ...continued VCCA = VCCD = 3 V; Tamb = 25 C; all AC values are given in RMS. See Figure 9 for details on the dummy inputs Vi1, Vi2 and Vi3. Symbol Parameter fRF Conditions RF frequency Min Typ Max Unit fstep = 10 kHz; fIF = 150 kHz 10.24 - 81.91 MHz fstep = 33.333 kHz; fIF = 133.333 kHz 34.13 - 273.03 MHz fstep = 50 kHz; fIF = 150 kHz 51.2 - 409.55 MHz FM AM; fstep = 1 kHz; fIF = 21 kHz FM [1] [1] LW 128 - 511.75 kHz MW 512 - 2047 kHz - 2.7 3.5 V performance[2] Vi input voltage Vi = Vi2 = RF sensitivity at dummy input [3] Vo(AF) AF output voltage measured on pins VAFL and VAFR [4] fIF = 133.333 kHz 70 95 120 mV fIF = 150 kHz 55 75 95 mV - 60 - dB [6] - 0.55 1.5 % S/N signal-to-noise ratio measured on pin MPXOUT THD total harmonic distortion measured on pin MPXOUT AM performance[7] Vi input voltage Vi = Vi1 = RF sensitivity at dummy input [8] - 155 - V E electric field strength RF sensitivity with ferroceptor [9] - 2.9 - mV/m Vo(AF) AF output voltage measured on pins VAFL and VAFR [10] 72 90 108 mV S/N signal-to-noise ratio [11] 40 48 - dB total harmonic distortion [12] - 1 2.5 % [13] 26 40 - dB THD MPX stereo decoder performance cs [1] channel separation Programmable frequency range of the synthesizer referred to the antenna input. [2] fRF = 100 MHz; fFM(max) = 22.5 kHz; fmod = 1 kHz; deemp = 50 s. [3] The sensitivity at the dummy input is equivalent to EMF in a 75 system. Conditions: (S+N)/N = 26 dB; L = R; Baud(-3dB) = 300 Hz to 15 kHz, A-weighted; fIF = 133.333 kHz. [4] Vi2 = 1 mV; fFM(max) = 22.5 kHz. [5] Vi2 = 1 mV; L = R; Baud(-3dB) = 300 Hz to 15 kHz, A-weighted; fIF = 133.333 kHz. [6] Vi2 = 1 mV; f = 75 kHz; with external deemp = 50 s; Baud(-3dB) limited to 15 kHz. [7] fRF = 918 kHz; m = 0.3; fmod = 1 kHz; deemp = 75 s TEA5777_1 Product data sheet (c) Koninklijke Philips Electronics N.V. 2006. All rights reserved. Rev. 01 -- 11 April 2006 3 of 47 TEA5777 Philips Semiconductors Low-power AM/FM stereo radio for handheld applications [8] Conditions: (S+N)/N = 26 dB; m = 0.3; A-weighting filter. [9] With ferroceptor C8E-A0424 TOKO Inc; (S+N)/N = 26 dB; A-weighting filter. [10] Vi1 = 5 mV. [11] Vi1 = 5 mV; A-weighting filter. [12] Vi1 = 5 mV; m = 0.8; bit AGCRF = 0 (slow AGC RF); bit AGCIF = 0 (slow AGC IF); Baud(-3dB) limited to 15 kHz. [13] Vi3 = 300 mV; fmod = 1 kHz; Vpilot = 30 mV; R = 1 and L = 0 or R = 0 and L = 1; VTMUTE = 1 V; fIF = 133.333 kHz; Baud(-3dB) limited to 15 kHz. 5. Ordering information Table 2. Ordering information Type number Package Name Description Version TEA5777HN HVQFN48 plastic thermal enhanced very thin quad flat package; no leads; 48 terminals; body 7 x 7 x 0.85 mm SOT619-1 TEA5777HL LQFP32 plastic low profile quad flat package; 32 leads; body 7 x 7 x 1.4 mm SOT358-1 TEA5777_1 Product data sheet (c) Koninklijke Philips Electronics N.V. 2006. All rights reserved. Rev. 01 -- 11 April 2006 4 of 47 xxxx xxxxxxxxxxxxxxxxxxxxxxxxxxxxxx x xxxxxxxxxxxxxx xxxxxxxxxx xxx xxxxxx xxxxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxxxxxxxxxxxxx xxxxx xxxxxx xx xxxxxxxxxxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxx xxxxxxx xxxxxxxxxxxxxxxxxxx xxxxxxxxxxxxxxxx xxxxxxxxxxxxxx xxxxxx xx xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxxxxxxxxxxxxxxx xxxxxxx xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxx xxxxx x x TEA5777HN (TEA5777HL) AGC IF COUNTER MPXIN 36 (24) 33 (22) bus FM antenna RFIN1 GNDRF 43 (28) 44 (29) 45 (30) 80 kHz LIMITER LNA I/Q MIXER VCO /2 N1 STEREO DECODER REFERENCE DEMODULATOR IF FILTER LPF Philips Semiconductors MPXOUT 6. Block diagram TEA5777_1 Product data sheet TMUTE 22 (15) bus RFIN2 4 (3) VCOTANK2 3 (2) SLOW LEVEL VCOTANK1 MATRIX SDS ADC (4-bit) MUX bus bus 5 (4) GNDVCO_AMRF bus 34 (23) 31 (21) VAFR VAFL bus AM/FM selection bus MASTER FILTER 9 (6) SWPORT1 10 (7) SWPORT2/EXTIN bus PROGRAMMABLE DIVIDER AM VCO PHASE DETECTOR REFERENCE DIVIDER 7 (5) I/Q MIXER IF FILTER I2C-BUS AND 3-WIRE BUS 38 (25) 30 (20) 26 (17) 23 (16) 11 (8) 41 (27) 29 (19) 15 (10) 20 (14) VCCD GNDIF GNDA GNDD WRITE_READ 19 (13) 18 (12) supply voltage Fig 1. Block diagram BUSMODE 001aab435 bus control Pin numbers in parenthesis apply to TEA5777HL. 4 MHz TEA5777 5 of 47 (c) Koninklijke Philips Electronics N.V. 2006. All rights reserved. 40 (26) VCCA 2 (1) CPOUT 47 (32) VREF 27 (18) XTAL2 bus 14 (9) V25DIG POWER SUPPLY AGC2CAP XTAL1 bus / 8 or / 32 N1 bus 16 (11) CRYSTAL OSCILLATOR V25IF bus CHARGE PUMP bus bus C-BANK IF AGC AM DETECTOR VAMLNA AM antenna bus bus bus AMRFIN CLOCK RF AGC DATA PILDET/ AMRFAGC 46 (31) Low-power AM/FM stereo radio for handheld applications Rev. 01 -- 11 April 2006 PILOT DETECTOR MUTE TEA5777 Philips Semiconductors Low-power AM/FM stereo radio for handheld applications 7. Pinning information 37 n.c. 38 BUSMODE 39 n.c. 40 V25IF 41 GNDIF 42 n.c. 43 RFIN1 44 GNDRF 45 RFIN2 46 PILDET/AMRFAGC terminal 1 index area 47 VAMLNA 48 n.c. 7.1 Pinning n.c. 1 36 MPXOUT CPOUT 2 35 n.c. VCOTANK1 3 34 VAFR VCOTANK2 4 33 MPXIN GNDVCO_AMRF 5 32 n.c. n.c. 6 AMRFIN 7 n.c. 8 29 GNDA SWPORT1 9 28 n.c. 31 VAFL TEA5777HN 30 V25DIG SWPORT2/EXTIN 10 27 AGC2CAP VCCD 11 26 VREF n.c. 24 VCCA 23 TMUTE 22 n.c. 21 WRITE_READ 20 DATA 19 CLOCK 18 n.c. 17 XTAL1 16 GNDD 15 n.c. 13 25 n.c. XTAL2 14 n.c. 12 001aab434 Transparent top view Fig 2. Pin configuration HVQFN48 TEA5777_1 Product data sheet (c) Koninklijke Philips Electronics N.V. 2006. All rights reserved. Rev. 01 -- 11 April 2006 6 of 47 TEA5777 Philips Semiconductors 25 BUSMODE 26 V25IF 27 GNDIF 28 RFIN1 29 GNDRF 30 RFIN2 31 PILDET/AMRFAGC 32 VAMLNA Low-power AM/FM stereo radio for handheld applications CPOUT 1 24 MPXOUT VCOTANK1 2 23 VAFR VCOTANK2 3 22 MPXIN GNDVCO_AMRF 4 AMRFIN 5 SWPORT1 6 19 GNDA SWPORT2/EXTIN 7 18 AGC2CAP VCCD 8 17 VREF 21 VAFL VCCA 16 20 V25DIG TMUTE 15 WRITE_READ 14 DATA 13 CLOCK 12 XTAL1 11 9 XTAL2 GNDD 10 TEA5777HL 001aab432 Fig 3. Pin configuration LQFP32 7.2 Pin description Table 3. Pin description Symbol Pin Description n.c. 1 - not connected CPOUT 2 1 tuning current output VCOTANK1 3 2 parallel tuned FM oscillator to ground output 1 VCOTANK2 4 3 parallel tuned FM oscillator to ground output 2 GNDVCO_AMRF 5 4 FM VCO and AM RF input ground n.c. 6 - not connected AMRFIN 7 5 AM RF input (FET input) n.c. 8 - not connected SWPORT1 9 6 programmable output and input port 1 SWPORT2/EXTIN 10 7 programmable output and input port 2 or external reference frequency input VCCD 11 8 digital supply voltage n.c. 12 - not connected n.c. 13 - not connected XTAL2 14 9 crystal input 2 HVQFN48 LQFP32 GNDD 15 10 digital ground XTAL1 16 11 crystal input 1 n.c. 17 - not connected TEA5777_1 Product data sheet (c) Koninklijke Philips Electronics N.V. 2006. All rights reserved. Rev. 01 -- 11 April 2006 7 of 47 TEA5777 Philips Semiconductors Low-power AM/FM stereo radio for handheld applications Table 3. Pin description ...continued Symbol Pin Description HVQFN48 LQFP32 CLOCK 18 12 I2C-bus and 3-wire bus clock input DATA 19 13 I2C-bus and 3-wire bus data input and output WRITE_READ 20 14 3-wire bus write and read input n.c. 21 - not connected TMUTE 22 15 field strength indicator capacitor connection VCCA 23 16 analog supply voltage n.c. 24 - not connected n.c. 25 - not connected VREF 26 17 1.25 V stabilized reference voltage output AGC2CAP 27 18 AM IF AGC capacitor connection n.c. 28 - not connected GNDA 29 19 analog ground V25DIG 30 20 internal stabilized supply voltage (digital part) output VAFL 31 21 left channel output n.c. 32 - not connected MPXIN 33 22 stereo decoder input VAFR 34 23 right channel output n.c. 35 - not connected MPXOUT 36 24 FM MPX output n.c. 37 - not connected BUSMODE 38 25 bus mode selection input n.c. 39 - not connected V25IF 40 26 internal stabilized supply voltage (IF, demodulator and integrated birdy filter) output GNDIF 41 27 ground of IF, demodulator and integrated birdy filter n.c. 42 - not connected RFIN1 43 28 FM RF antenna input 1 GNDRF 44 29 FM RF ground RFIN2 45 30 FM RF antenna input 2 PILDET/AMRFAGC 46 31 stereo decoder pilot detector filter input or AM RF AGC capacitor connection VAMLNA 47 32 internal stabilized supply voltage (AM front end) output n.c. 48 - not connected TEA5777_1 Product data sheet (c) Koninklijke Philips Electronics N.V. 2006. All rights reserved. Rev. 01 -- 11 April 2006 8 of 47 TEA5777 Philips Semiconductors Low-power AM/FM stereo radio for handheld applications 8. Functional description The TEA5777 is an integrated AM/FM stereo radio circuit with very high integration level including digital tuning and control functions. The IC communicates with a microcontroller via the I2C-bus or the 3-wire bus interface and provides the following functions: * AM single conversion receiver with integrated image rejection for fIF = 21 kHz * FM single conversion receiver with integrated image rejection for fIF = 133.333 kHz or 150 kHz (software selectable) * FM stereo decoder with signal dependent stereo effect The AM circuit incorporates: * * * * * * Integrated antenna tuning function Integrated I/Q IF channel On-chip image reject mixer structure A fully integrated AM VCO with fVCO = 8 x (fRF + fIF) Software selectable high-side or low-side oscillator injection A fully integrated AM detector The FM circuit incorporates: * * * * * * Integrated I/Q IF channel On-chip image reject mixer structure External RF VCO running at fVCO = 2 x (fRF fIF) Software selectable high-side or low-side oscillator injection A fully integrated demodulator Japan band possibility The stereo decoder incorporates: * A 1.52 MHz VCO, that needs no external adjustment, which can lock to the 19 kHz stereo pilot tone by means of a PLL system; the sub-carrier frequencies of 19 kHz, 38 kHz and others are regenerated from the VCO output * Integrated 50 s or 75 s (switchable) de-emphasis * Signal Dependent Stereo (SDS) function can be switched off via the bus interface * Stereo decoder can be switched off in order to save power Tuning function: * The tuning synthesizer is on-chip with the radio and utilizes a PLL system for tuning and an IF counter has been added for search-stop detection * Tuning to a wanted input signal can be achieved by preset tuning or search tuning. For the latter the IC has a built-in auto search function which reduces the load of the microcontroller TEA5777_1 Product data sheet (c) Koninklijke Philips Electronics N.V. 2006. All rights reserved. Rev. 01 -- 11 April 2006 9 of 47 TEA5777 Philips Semiconductors Low-power AM/FM stereo radio for handheld applications Bus communication: * Bus communication takes place via the I2C-bus or the 3-wire bus protocol. Selection of the bus mode is done by hardware programming via pin BUSMODE * 4-bit ADC level information, 1-bit IF counter and mono or stereo indication (in FM mode) can be read via the bus. Alternatively, the mono or stereo and the IF in-window indication can be obtained via silent readout via the bus lines CLOCK and DATA 8.1 AM radio part 8.1.1 AM RF amplifier The AM input pin AMRFIN has a (selectable) high-impedance input. The input is intended to be connected to the top of a tuned circuit. The input impedance is determined by the LNA gain (bit LNA) and the value of the LNA feedback resistor (bit RFB). For large RF input signals, the RF AGC reduces the input signal level to the AM front end in order to prevent overloading. The required AM RF AGC time constant is created by means of an internal current source and the capacitor connected to pin PILDET/AMRFAGC. During search operation the response time of this RF AGC circuit can be speeded up via the bus control by bit AGCRF. 8.1.2 Tuning AM antenna circuit The tuning capacitor for the AM antenna circuit has been integrated by means of a capacitor bank (C-bank) and the tuning frequency can be programmed in discrete steps via the bus. No external varactor diode is required. In order to match the capacitor bank to the external AM antenna coil, a provision has been made to electronically align the IC to the AM antenna. For this bit CALLIGN has to be set to logic 1 and the corresponding bits C[6:0] have to be programmed. After this alignment bit CALLIGN should be set to logic 0 again to freeze the alignment capacitor value and to enable the control over the main capacitor bank again. For more details on the alignment, see Section 13.1 and the application note. For LW mode an external capacitor needs to be added in parallel to the LW coil. 8.1.3 AM I/Q mixer AM quadrature mixers, in an orthogonal architecture, convert AM RF signals to the internal fIF = 21 kHz. The mixer architecture provides inherent image rejection. 8.1.4 AM VCO The fully integrated VCO provides the local oscillator signals for the AM quadrature mixers. No external components are required. The internal VCO frequency ranges from 4 MHz to 14 MHz and the proper divider ratio is chosen by selecting the MW or LW band via the bus control bit MWLW. Programming of the VCO is done: * For MW: fVCO = 8 x (fRF fIF) * For LW: fVCO = 32 x (fRF fIF) TEA5777_1 Product data sheet (c) Koninklijke Philips Electronics N.V. 2006. All rights reserved. Rev. 01 -- 11 April 2006 10 of 47 TEA5777 Philips Semiconductors Low-power AM/FM stereo radio for handheld applications High-side injection or low-side injection of the VCO can be chosen: * High-side injection: local oscillator frequency at mixer input is higher than RF input signal frequency. * Low-side injection: local oscillator frequency at mixer input is lower than RF input signal frequency. 8.1.5 AM IF filter The AM circuit incorporates an I and Q orthogonal channel path with fully integrated polyphase IF filter. All AM IF filtering is done inside the IC, therefore no external filter components are required. The center frequency of the filter is 21 kHz and the -3 dB bandwidth amounts to 8 kHz. 8.1.6 AM IF amplification and AM detection The IF AGC controls the IF amplification and a fully integrated AM detector converts the AM IF signal into audio. In AM mode the capacitor connected to pin AGC2CAP is used for IF AGC filtering. The value of this capacitor is a compromise between AGC speed and THD. In order to achieve an acceptable THD in normal mode and an acceptable AGC response during e.g. a search action, the time constant can be switched to a value 15 times lower by means of bit AGCIF. In autonomous search mode (bit SEARCH = 1) the time constant is switched automatically to the lowest value. 8.2 FM radio part 8.2.1 Low noise RF amplifier The FM circuit incorporates a wideband input. The LNA input impedance together with the LC RF input circuit defines a low Q, FM band-pass filter. The input filter is also used for impedance matching between the source impedance and the 300 LNA input impedance between pins RFIN1 and RFIN2. An RF AGC circuit prevents the mixer and IF filter from overdrive conditions. 8.2.2 FM I/Q mixer FM quadrature mixers, in an orthogonal I/Q architecture, convert FM RF signals to the internal fIF = 133.333 kHz or 150 kHz. The mixer architecture provides inherent image rejection. Whether fIF = 133.333 kHz or 150 kHz is chosen depends on bits FREF[1:0]. For choosing the best signal conditions with respect to the influence of the image signals, high-side or low-side injection can be selected: * High-side injection: local oscillator frequency at mixer input is higher than RF input signal frequency. * Low-side injection: local oscillator frequency at mixer input is lower than RF input signal frequency. TEA5777_1 Product data sheet (c) Koninklijke Philips Electronics N.V. 2006. All rights reserved. Rev. 01 -- 11 April 2006 11 of 47 TEA5777 Philips Semiconductors Low-power AM/FM stereo radio for handheld applications 8.2.3 FM VCO The symmetrical LC, varactor tuned VCO provides the oscillator signals for the FM quadrature mixers (pins VCOTANK1 and VCOTANK2). The VCO operates at double the RF frequency fVCO = 2 x (fRF fIF) and has an internal AGC control circuit in order to guarantee good start-up behavior and carrier-to-noise ratio (C/N) even with low Q coils (Q > 40). High-side injection (+fIF) or low-side injection (-fIF) of the VCO can be chosen via the bus control. 8.2.4 FM IF filter The FM signal path incorporates an I and Q orthogonal FM channel with fully integrated polyphase IF filter. All FM IF filtering is done inside the IC, therefore no external filter components are required. The center frequency of the filter matches the chosen IF (fIF = 133.333 kHz or 150 kHz) and has a -3 dB bandwidth of approximately 110 kHz. 8.2.5 FM demodulator The FM demodulator is fully integrated and needs no external components. In order to remove undesired IF and or RF input related components, a 80 kHz low-pass filter has been integrated. 8.3 Stereo decoder 8.3.1 MPX decoder The PLL stereo decoder is alignment free and incorporates a fully integrated PLL loop filter. The stereo decoder can be switched to forced mono via bus control bit FOMO. 8.3.2 Signal strength depending mono/stereo blend When decreasing the RF input level, the MPX decoder blends from stereo to mono to limit the output noise. The control signal is obtained from the low-pass filtered level information at pin TMUTE. This blend function, called SDS, can also be switched off via bus control bit SDSOFF and a RF level related sudden change from stereo to mono transition will result. 8.3.3 Pilot detector A pilot detector, with external filter capacitor at pin PILDET/AMRFAGC, is used to detect the presence of a stereo signal. Mono or stereo reception can be read via the bus control, but can also be passed to pin DATA in the Dbus mode (see Section 9). For this option, bit DBUS has to be programmed. In this case, no bus action is required (silent readout) to read the status of the pilot detector and the information is continuously available. 8.3.4 De-emphasis In FM mode, the de-emphasis is switchable between 50 s and 75 s (bit DEEM). In AM mode, bit DEEM selects a low-pass filter with the time constant 50 s or 75 s in order to limit the noise bandwidth. 8.4 Tuning function The tuning concept of the TEA5777 is based on a PLL and programming of the required frequency takes place via the bus control. TEA5777_1 Product data sheet (c) Koninklijke Philips Electronics N.V. 2006. All rights reserved. Rev. 01 -- 11 April 2006 12 of 47 TEA5777 Philips Semiconductors Low-power AM/FM stereo radio for handheld applications 8.4.1 Reference frequency generation The internally required reference frequency can be obtained from the integrated crystal oscillator or from an externally applied reference signal of 13 MHz. Selection of the reference signal (internal or external) takes place via the bus control. The reference frequency signals are used for: * * * * * * Reference frequency divider for the PLL synthesizer Center frequency adjustment of the IF filters Free running frequency adjustment of the stereo decoder VCO Clocking the stereo decoder state machine Timing of the IF counter Sampling the RF level for the level ADC 8.4.2 Crystal oscillator The symmetrical crystal oscillator can operate with a 4 MHz clock crystal. An amplitude control function is implemented in order to minimize the higher harmonic component signal levels. 8.4.3 IF counter An IF counter has been added for search-stop detection (optional, i.e. can be enabled or disabled via bit IFCE). The IF counter result is a 1-bit output and in-window yes or no and available via bus control. In order to minimize the interference, the IF counter can be disabled via the bus control bit IFCE. In both AM and FM modes, two IF window settings can be chosen by bit IFW. When Dbus mode is activated and bit IFCE = 1, the IF counter result is available at pin DATA (see Table 8). In this mode, the IF counter ready flag (bit IFCRDY) is put on pin DATA. Disabling bit IFCE, while Dbus mode is active, puts the mono or stereo indication information on pin DATA. In this case no bus actions are required to read the status of the IF counter (silent readout). Remark: For updating the IF counter information a short pulse on pin WRITE_READ should be generated. 8.4.4 Automatic search operation The IC can be programmed to an autonomous search mode operation. In this mode, the IC will search for a new station without the need of communication to the microcontroller. To enable this mode, bit SEARCH has to be set. Under control of bit UPDWN, search stop level bits SLEV[1:0] and search step control bits STEP[1:0], various search modes can be selected (see Section 9). Before this mode can be activated, first the upper and lower band limits have to be programmed. Bit PROGBLIM = 1 and bit UPDWN = 1 programs the upper band limit, while bit PROGBLIM = 1 and bit UPDWN = 0 programs the lower band limit. Bit SFOUND signals whether a new station is found. Bit BLIM signals whether a band limit is reached. In AM mode, bit AMDELAY selects either a 40 ms or 80 ms delay time. The best value to be selected depends on the realized AM IF AGC response (see Section 8.1.6). TEA5777_1 Product data sheet (c) Koninklijke Philips Electronics N.V. 2006. All rights reserved. Rev. 01 -- 11 April 2006 13 of 47 TEA5777 Philips Semiconductors Low-power AM/FM stereo radio for handheld applications 8.5 RF level information (RSSI) For processing Receiver Signal Strength Information (RSSI) in both AM and FM modes, the internal level voltage is analog-to-digital converted with a 4-bit ADC. The level information can be read by bits LEV[3:0] in the read register. In autonomous search mode, bits LEV[3:0] still indicate some momentary level information, however the data is dependent upon the readout timing and can be considered to have no relevance to the user. The ADC full-scale goes from 0.25 V to 0.95 V. In AM mode, the level information covers the ADC full-scale. In FM mode, the level information does not fully cover the ADC full-scale. 8.6 Software programmable ports Two software programmable ports can be addressed via the bus control. These ports can be independently switched to multiple functions, knowing: * Outputs: SWPORT1 and SWPORT2 can act as output ports which are capable of sourcing and sinking approximately 9 mA. * Inputs: SWPORT1 and SWPORT2 can act as input ports of which the status can be read out via bus control. Remark: Port SWPORT2 can be switched as input for the 13 MHz reference signal. In that case, no other functions can be programmed for this port. TEA5777_1 Product data sheet (c) Koninklijke Philips Electronics N.V. 2006. All rights reserved. Rev. 01 -- 11 April 2006 14 of 47 TEA5777 Philips Semiconductors Low-power AM/FM stereo radio for handheld applications 9. Control functions via I2C-bus and 3-wire bus 9.1 Bus interface Via the bus interface a couple of main blocks are controlled: * * * * * * * * Tuning system Autonomous search AM capacitor bank (C-bank control) IF counter 4-bit level ADC Stereo decoder Mute and de-emphasis SWPORT1 and SWPORT2 outputs (I/O port control) BUS INTERFACE 3-WIRE BUS OR I2C-BUS INTERFACE C-BANK CONTROL MUTE DE-EMPHASIS I/O PORT CONTROL STEREO DECODER TUNING SYSTEM AUTONOMOUS SEARCH IF COUNTER LEVEL ADC 001aab436 Fig 4. Bus interface 9.2 Bus protocol The TEA5777 bus interface is a combination of an I2C-bus and a 3-wire-bus. The bus mode is determined by the bus mode input pin BUSMODE which will be connected to ground or to VCCD: * Pin BUSMODE = HIGH enables the 3-wire mode * Pin BUSMODE = LOW enables I2C-bus mode TEA5777_1 Product data sheet (c) Koninklijke Philips Electronics N.V. 2006. All rights reserved. Rev. 01 -- 11 April 2006 15 of 47 TEA5777 Philips Semiconductors Low-power AM/FM stereo radio for handheld applications 9.3 I2C-bus mode The I2C-bus interface is based on `The I2C-bus specification' version 2.1 January 2000. In the I2C-bus mode, only pins CLOCK and DATA are used for data transfer. The level on pin WRITE_READ is don't care. Data transfer to the bus interface is byte oriented and no sub-addressing is used. The data transfer consists of a START condition, device address byte plus R/W Data is written at the rising edge and data is clocked out at the falling edge. The I2C-bus can operate at a maximum clock frequency of 400 kHz. The I2C-bus device address of the TEA5777 is: 110 0000 (7 bits). Table 4. I2C-bus data transfer Condition Byte Description Address byte device address + R/W bit START start by master ACK acknowledge by slave Byte 1 ACK data byte 1 acknowledge by slave Byte 2 ACK data byte 2 acknowledge by slave Byte n data byte n ACK acknowledge by slave STOP stop by master 9.3.1 Write mode The bus interface has a total of 6 write registers. Before data can be written to these registers, the I2C-bus device address byte has to be written to the IC After the bus interface (slave) recognizes a start of transmission, the address byte is written to the bus. If the address is equal to the internal address of the bus interface, an acknowledge is given to the master and data can be written to the write registers. If the bus address does not match, no acknowledge is given and the internal bus interface clock is disabled until a next start is detected. TEA5777_1 Product data sheet (c) Koninklijke Philips Electronics N.V. 2006. All rights reserved. Rev. 01 -- 11 April 2006 16 of 47 TEA5777 Philips Semiconductors Low-power AM/FM stereo radio for handheld applications Table 5. I2C-bus write mode Condition Byte Description START start by master Address byte ACK 1100 0000 (bit R/W = 0) acknowledge by slave Byte 1 data byte 1 ACK acknowledge by slave Byte 2 data byte 2 ACK acknowledge by slave : : Byte 6 data byte 6 ACK acknowledge by slave STOP stop by master 9.3.2 Read mode The bus interface has a total of 3 read bytes. If a start of transmission is detected and the I2C-bus device address matches with the internal address, an acknowledge is given and the data is clocked out. If not, the internal clock is disabled and the data output will be logic 1s (FFh). Table 6. Condition I2C-bus read mode Byte Description START start by master Address byte ACK acknowledge by slave Byte 1 ACK data byte 1 acknowledge by slave Byte 2 ACK data byte 2 acknowledge by slave Byte 3 STOP 1100 0001 (bit R/W = 1) data byte 3 stop by master 9.3.3 Dbus function in I2C-bus mode (silent readout) The Dbus function becomes active when bit DBUS = 1 and when the maximum available bytes are written in the write mode or when the maximum available bytes are read in the read mode. At every start of an I2C-bus data transfer, the Dbus mode is deactivated. When the Dbus mode is active in I2C-bus mode, pin WRITE_READ becomes an open-collector output (pull-up resistor required). Depending on the setting of bit IFCE and bit SEARCH, the following data will be available at pin WRITE_READ: * Mono or stereo indication flag * IFC counter flag * SFOUND flag or BLIM reached flag In Table 7 the data at pin WRITE_READ is depicted as a function of bits DBUS, SEARCH and IFCE. TEA5777_1 Product data sheet (c) Koninklijke Philips Electronics N.V. 2006. All rights reserved. Rev. 01 -- 11 April 2006 17 of 47 TEA5777 Philips Semiconductors Low-power AM/FM stereo radio for handheld applications Table 7. Definition pin WRITE_READ functionality in I2C-bus Dbus mode Bit Pin WRITE_READ DBUS SEARCH IFCE Output signal Status[1] 0 X X 3-state not applicable 1 0 0 mono or stereo flag H = stereo, L = mono 0 1 IFCRDY flag H = IF counter ready 1 X SFOUND or BLIM flag H = station found or band limit reached [1] H = HIGH-level output voltage L = LOW-level output voltage 9.4 3-wire bus mode For the 3-wire bus mode pin BUSMODE = HIGH, i.e. connected to VCCA. The pins CLOCK, DATA and WRITE_READ are used to communicate with the external hardware (microcontroller or PC). The bus operates at a maximum clock of 1 MHz. The selected mode (read or write mode) is determined by the rising or falling edge of signal WRITE_READ. 9.4.1 Write mode At the rising edge of signal WRITE_READ the bus interface is set to the write mode. At every rising edge of the clock input (CLOCK) the data is clocked in. Signal DATA has to be stable before it can be clocked in. 50 % WRITE_READ tw(W) tsu(clk) CLOCK 50 % 50 % th(D) tsu(D) 50 % DATA valid data 001aae434 Fig 5. 3-wire bus write data TEA5777_1 Product data sheet (c) Koninklijke Philips Electronics N.V. 2006. All rights reserved. Rev. 01 -- 11 April 2006 18 of 47 TEA5777 Philips Semiconductors Low-power AM/FM stereo radio for handheld applications 9.4.2 Read mode At the falling edge of signal WRITE_READ the bus interface is set to the read mode. Data is clocked out on every falling edge of the input clock. In the read mode, pin DATA becomes an open-collector output and an external pull-up resistor is required. 50 % WRITE_READ tw(R) tsu(clk) tclk(H) CLOCK 50 % 50 % tclk(L) th(Q) td(Q) 50 % DATA 50 % 001aae435 Fig 6. 3-wire bus read data 9.4.3 Dbus function in 3-wire mode (silent readout) Bus pins CLOCK and DATA are bidirectional and act as inputs when bit DBUS = 0, but are open-collector outputs when bit DBUS = 1. External pull-up resistors are required in this case. In Dbus mode, pins CLOCK and DATA are used for output data and pin WRITE_READ is used as an input. With a rising edge (write mode) or falling edge (read mode) of signal WRITE_READ the Dbus mode is deactivated and a transmission is started. The Dbus mode is activated with bit DBUS = 1 and after transfer of all 6 data bytes in the write mode or all 3 data bytes in the read mode. Data on pins CLOCK and DATA in the Dbus mode is given in Table 8. Table 8. CLOCK and DATA lines in Dbus-mode Bit Pin CLOCK DBUS SEARCH IFCE Signal 0 X X input - 1 0 0 IFC flag H = IF in-window mono/stereo flag H = stereo, L = mono 1 IFC flag H = IF in-window IFCRDY flag X SFOUND H = station found BLIM flag flag 1 [1] 1 Signal Status[1] input H = IF counter ready H = band limit reached H = HIGH-level output voltage L = LOW-level output voltage TEA5777_1 Product data sheet Pin DATA Status[1] (c) Koninklijke Philips Electronics N.V. 2006. All rights reserved. Rev. 01 -- 11 April 2006 19 of 47 TEA5777 Philips Semiconductors Low-power AM/FM stereo radio for handheld applications 9.5 Data transfer in I2C-bus and 3-wire mode In the write mode, the data transfer between the TEA5777 (slave) and the microcontroller (master) is byte oriented. In the read mode, the data transfer from slave to master is bit oriented. Remark: For writing to the PLL, it is necessary to write both the first and second data byte. Only after completing the data transfer of data byte 2 is the PLL word copied into the PLL register. 9.5.1 Register definition in write mode Table 9. Survey of bit names in FM write mode Bits marked with * are common for FM and AM mode. Bits 7 6 5 4 3 2 1 0 Byte 1 MUTE* AM/FM* STB* PLL12 PLL11 PLL10 PLL9 PLL8 Byte 2 PLL7 PLL6 PLL5 PLL4 PLL3 PLL2 PLL1 PLL0 Byte 3 FREF1 FREF0 IFCE* IFW* HILO* DBUS* - INTEXT* Byte 4 P1* P0* PEN1* PEN0* - CHP0* DEEM* - Byte 5 FOMO SDSOFF DOFF - - - - - Byte 6 SEARCH* PROGBLIM* UPDWN* SLEV1* SLEV0* STEP1 STEP0* - 9.5.1.1 FM write mode Table 10. FM write mode - data byte 1 Bits marked with * are common for FM and AM mode. Bit Symbol Description 7 (MSB) MUTE* audio mute: 0 = audio not muted; 1 = audio muted 6 AM/FM* AM/FM selection: 0 = FM; 1 = AM 5 STBY* operating mode: 0 = operating; 1 = standby 4 PLL12 setting of synthesizer programmable counter 3 PLL11 2 PLL10 1 PLL9 0 (LSB) PLL8 Table 11. FM write mode - data byte 2 Bits marked with * are common for FM and AM mode. Bit Symbol Description 7 (MSB) PLL7 setting of synthesizer programmable counter 6 PLL6 5 PLL5 4 PLL4 3 PLL3 2 PLL2 1 PLL1 0 (LSB) PLL0 TEA5777_1 Product data sheet (c) Koninklijke Philips Electronics N.V. 2006. All rights reserved. Rev. 01 -- 11 April 2006 20 of 47 TEA5777 Philips Semiconductors Low-power AM/FM stereo radio for handheld applications Table 12. FM write mode - data byte 3 Bits marked with * are common for FM and AM mode. Bit Symbol Description IF and reference frequency control: see Table 13 7 (MSB) FREF1 6 FREF0 5 IFCE* IF counter: 0 = not enabled; 1 = enabled 4 IFW* IF window: 0 = 10 kHz; 1 = 20 kHz 3 HILO* VCO injection mode: 0 = low-side; 1 = high-side 2 DBUS* Dbus mode selection: 0 = off; 1 = on 1 - no function 0 (LSB) INTEXT* reference frequency source select: 0 = external; 1 = internal Table 13. FM IF and reference frequency control Bits FREF[1:0 fref(VCO) fref(RF) FM mode VCO step frequency (kHz) reference frequency referred to RF input (kHz) 00 100 50 fIF = 150 kHz 01 20 10 fIF = 150 kHz for East Europe 10 66.666 33.333 fIF = 133.333 kHz 11 100 50 fIF = 150 kHz Table 14. FM write mode - data byte 4 Bits marked with * are common for FM and AM mode. Bit Symbol Description 7 (MSB) P1* I/O port control: see Table 28 and Table 29 6 P0* 5 PEN1* 4 PEN0* 3 - no function 2 CHP0* charge pump current: 0 = large; 1 = small 1 DEEM* de-emphasis: 0 = 50 s; 1 = 75 s 0 (LSB) - no function Table 15. FM write mode - data byte 5 Bits marked with * are common for FM and AM mode. Bit Symbol Description 7 (MSB) FOMO stereo reception: 0 = allow; 1 = force mono 6 SDSOFF stereo decoder blend function: 0 = on; 1 = off 5 DOFF stereo decoder: 0 = on; 1 = standby 4 - 3 - 2 - 1 - 0 (LSB) - TEA5777_1 Product data sheet (c) Koninklijke Philips Electronics N.V. 2006. All rights reserved. Rev. 01 -- 11 April 2006 21 of 47 TEA5777 Philips Semiconductors Low-power AM/FM stereo radio for handheld applications Table 16. FM write mode - data byte 6 Bits marked with * are common for FM and AM mode. Bit Symbol Description 7 (MSB) SEARCH* search mode: 0 = disabled; 1 = enabled 6 PROGBLIM* copy word: 0 = no copy; 1 = copy PLL word to BLIM register 5 UPDWN* if bit PROGBLIM = 0: 0 = down search; 1 = up search 4 SLEV1* search level settings: see Table 17 3 SLEV0* 2 STEP1 1 STEP0* 0 (LSB) - Table 17. Search level settings if bit PROGBLIM = 1: 0 = lower band-limit; 1 = upper band-limit no function Bits SLEV[1:0] RF level (FM) 00 5 V 0010 01 10 V 0100 10 30 V 0110 11 60 V 1001 Table 18. 9.5.1.2 search steps FM: see Table 18 ADC[3:0] level bits Search steps FM Programmable steps FM Bits STEP[1:0] Step size 100 kHz reference 66 kHz reference 20 kHz reference 00 1 50 33.333 01 2 100 66.666 20 10 3 150 100 30 11 4 200 133.333 40 10 AM write mode Table 19. Survey of bit names in AM write mode Bits marked with * are common for FM and AM mode. Bits 7 6 5 4 3 2 1 0 Byte 1 MUTE* AM/FM* STB* PLL10 PLL9 PLL8 PLL7 PLL6 Byte 2 PLL5 PLL4 PLL3 PLL2 PLL1 PLL0 AGCRF AGCIF Byte 3 MWLW LNA IFCE* IFW* HILO* DBUS* PEAK INTEXT* Byte 4 P1* P0* PEN1* PEN0* - CHP0* DEEM* RFB Byte 5 CALLIGN C6 C5 C4 C3 C2 C1 C0 Byte 6 SEARCH* PROGBLIM* UPDWN* SLEV1* SLEV0* AMDELAY STEP0* - TEA5777_1 Product data sheet (c) Koninklijke Philips Electronics N.V. 2006. All rights reserved. Rev. 01 -- 11 April 2006 22 of 47 TEA5777 Philips Semiconductors Low-power AM/FM stereo radio for handheld applications Table 20. AM write mode - data byte 1 Bits marked with * are common for FM and AM mode. Bit Symbol Description 7 (MSB) MUTE* audio mute: 0 = audio not muted; 1 = audio muted 6 AM/FM* AM/FM selection: 0 = FM; 1 = AM 5 STBY* operating mode: 0 = operating; 1 = standby 4 PLL10 setting of synthesizer programmable counter 3 PLL9 2 PLL8 1 PLL7 0 (LSB) PLL6 Table 21. AM write mode - data byte 2 Bits marked with * are common for FM and AM mode. Bit Symbol Description 7 (MSB) PLL5 setting of synthesizer programmable counter 6 PLL4 5 PLL3 4 PLL2 3 PLL1 2 PLL0 1 AGCRF RF AGC response: 0 = slow; 1 = fast 0 (LSB) AGCIF IF AGC response: 0 = slow; 1 = fast Table 22. AM write mode - data byte 3 Bits marked with * are common for FM and AM mode. Bit Symbol Description 7 (MSB) MWLW band select: 1 = MW; 0 = LW 6 LNA LNA gain: 0 = 5 x; 1 = 10 x 5 IFCE* IF counter: 0 = not enabled; 1 = enabled 4 IFW* IF window: 0 = 2 kHz; 1 = 4 kHz 3 HILO* VCO injection mode: 0 = low-side; 1 = high-side 2 DBUS* Dbus mode selection: 0 = off; 1 = on 1 PEAK RFAGC speed-up: 0 = off; 1 = fast attack, normal decay 0 (LSB) INTEXT* reference frequency source select: 0 = external; 1 = internal Table 23. AM write mode - data byte 4 Bits marked with * are common for FM and AM mode. Bit Symbol Description 7 (MSB) P1* I/O port control: see Table 28 and Table 29 6 P0* 5 PEN1* 4 PEN0* 3 - no function TEA5777_1 Product data sheet (c) Koninklijke Philips Electronics N.V. 2006. All rights reserved. Rev. 01 -- 11 April 2006 23 of 47 TEA5777 Philips Semiconductors Low-power AM/FM stereo radio for handheld applications Table 23. AM write mode - data byte 4 ...continued Bits marked with * are common for FM and AM mode. Bit Symbol Description 2 CHP0* charge pump current: 0 = large; 1 = small 1 DEEM* de-emphasis: 0 = 50 s; 1 = 75 s 0 (LSB) RFB LNA feedback resistor: 0 = 1 M; 1 = 2.2 M Table 24. AM write mode - data byte 5 Bits marked with * are common for FM and AM mode. Bit Symbol Description 7 (MSB) CALLIGN selection bit: 0 = C[6:0] sets C-bank; 1 = C[6:0] sets C-align 6 C6 C[6:0] sets C-bank or C-align word depending upon bit CALLIGN: 5 C5 C-align: C[6:0] should be between 0 and 128 (decimal) 4 C4 C-bank: C[6:0] should be between 0 and 122 (decimal) 3 C3 2 C2 1 C1 0 (LSB) C0 Table 25. AM write mode - data byte 6 Bits marked with * are common for FM and AM mode. Bit Symbol Description 7 (MSB) SEARCH* search mode: 0 = disabled; 1 = enabled 6 PROGBLIM* copy word: 0 = no copy; 1 = copy PLL word to BLIM register 5 UPDWN* if bit PROGBLIM = 0: 0 = down search; 1 = up search if bit PROGBLIM = 1: 0 = lower band limit; 1 = upper band limit search level settings: see Table 26 4 SLEV1* 3 SLEV0* 2 AMDELAY IF counter delay; 0 = 40 ms; 1 = 80 ms 1 STEP0* search steps AM: see Table 27 0 (LSB) - no function Table 26. Search level settings Bits SLEV[1:0] RF level (AM)[1] ADC[3:0] level bits 00 0.9 mV/m 0010 01 1.2 mV/m 0100 10 1.9 mV/m 0110 11 3.8 mV/m 1001 [1] Measured with ferroceptor C8E-A0424 TOKO Inc. TEA5777_1 Product data sheet (c) Koninklijke Philips Electronics N.V. 2006. All rights reserved. Rev. 01 -- 11 April 2006 24 of 47 TEA5777 Philips Semiconductors Low-power AM/FM stereo radio for handheld applications Table 27. Search steps AM Programmable steps AM fref = 8 kHz Bit STEP0 Step size PLL step MW LW MW LW MW LW 0 9 36 9 kHz 9 kHz 9 kHz mode 9 kHz mode 1 10 40 10 kHz 10 kHz 10 kHz mode 10 kHz mode Table 28. C-bank step I/O port control SWPORT1 Bit PEN0 Bit P0 PORT P0 (pin SWPORT1) 0 X[1] input 1 0 output logic 0 1 output logic 1 [1] X = don't care. Table 29. I/O port control SWPORT2 Bit INTEXT Bit PEN1 Bit P1 PORT P1 (SWPORT2) [1] input (internal reference) 1 0 X 1 1 0 output logic 0 (internal reference) 1 output logic 1 (internal reference) 0 X[1] 1 reference input (13 MHz) [1] X = don't care. 9.5.2 Register definition in read mode Table 30. Survey of bit names in FM read mode Bits marked with * are common for FM and AM mode. Bits 7 6 5 4 3 2 1 0 Byte 1 IFCRDY* IFCE* MOST LEV3* LEV2* LEV1* LEV0* SFOUND* Byte 2 BLIM* P1* P0* PLL12 PLL11 PLL10 PLL9 PLL8 Byte 3 PLL7 PLL6 PLL5 PLL4 PLL3 PLL2 PLL1 PLL0 9.5.2.1 FM read mode Table 31. FM read mode - data byte 1 Bits marked with * are common for FM and AM mode. Bit Symbol Description 7 (MSB) IFCRDY* IF counter ready 6 IFCE* IF counter enable 5 MOST mono or stereo setting 4 LEV3* search level setting 3 LEV2* 2 LEV1* 1 LEV0* 0 (LSB) SFOUND* station found TEA5777_1 Product data sheet (c) Koninklijke Philips Electronics N.V. 2006. All rights reserved. Rev. 01 -- 11 April 2006 25 of 47 TEA5777 Philips Semiconductors Low-power AM/FM stereo radio for handheld applications Table 32. FM read mode - data byte 2 Bits marked with * are common for FM and AM mode. Bit Symbol Description 7 (MSB) BLIM* band limit reached 6 P1* port 1 setting 5 P0* port 0 setting 4 PLL12 setting of synthesizer 3 PLL11 2 PLL10 1 PLL9 0 (LSB) PLL8 Table 33. FM read mode - data byte 3 Bits marked with * are common for FM and AM mode. 9.5.2.2 Bit Symbol Description 7 (MSB) PLL7 setting of synthesizer 6 PLL6 5 PLL5 4 PLL4 3 PLL3 2 PLL2 1 PLL1 0 (LSB) PLL0 AM read mode Table 34. Survey of bit names in AM read mode Bits marked with * are common for FM and AM mode. Bits 7 6 5 4 3 2 1 0 Byte 1 IFCRDY* IFCE* - LEV3* LEV2* LEV1* LEV0* SFOUND* Byte 2 BLIM* P1* P0* PLL10 PLL9 PLL8 PLL7 PLL6 Byte 3 PLL5 PLL4 PLL3 PLL2 PLL1 PLL0 - - Table 35. AM read mode - data byte 1 Bits marked with * are common for FM and AM mode. Bit Symbol Description 7 (MSB) IFCRDY* IF counter ready 6 IFCE* IF counter enable 5 - no function 4 LEV3* search level setting 3 LEV2* 2 LEV1* 1 LEV0* 0 (LSB) SFOUND* station found TEA5777_1 Product data sheet (c) Koninklijke Philips Electronics N.V. 2006. All rights reserved. Rev. 01 -- 11 April 2006 26 of 47 TEA5777 Philips Semiconductors Low-power AM/FM stereo radio for handheld applications Table 36. AM read mode - data byte 2 Bits marked with * are common for FM and AM mode. Bit Symbol Description 7 (MSB) BLIM* band limit reached 6 P1* port 1 setting 5 P0* port 0 setting 4 PLL10 setting of synthesizer 3 PLL9 2 PLL8 1 PLL7 0 (LSB) PLL6 Table 37. AM read mode - data byte 3 Bits marked with * are common for FM and AM mode. Bit Symbol Description 7 (MSB) PLL5 setting of synthesizer 6 PLL4 5 PLL3 4 PLL2 3 PLL1 2 PLL0 1 - no function 0 (LSB) - no function TEA5777_1 Product data sheet (c) Koninklijke Philips Electronics N.V. 2006. All rights reserved. Rev. 01 -- 11 April 2006 27 of 47 TEA5777 Philips Semiconductors Low-power AM/FM stereo radio for handheld applications 10. Limiting values Table 38. Limiting values In accordance with the Absolute Maximum Rating System (IEC 60134). Symbol Parameter VCCA Conditions Min Max Unit analog supply voltage -0.3 +8 V VCCD digital supply voltage -0.3 +5 V Vx voltage on pin x -0.3 +8 V VCOTANK1 and VCOTANK2 Tstg storage temperature -55 +150 C Tamb ambient temperature -10 +65 C Vesd electrostatic discharge voltage MM [1] - 100 V HBM [2] - 1000 V MM [1] - 200 V HBM [2] - 1500 V MM [1] - 200 V HBM [2] - 2000 V Typ Unit HVQFN48 package 29 K/W LQFP32 package 80 K/W on pins SWPORT1 and SWPORT2 on pin AMRFIN on all other pins [1] Machine model: R = 10 , L = 0.75 H, C = 200 pF. [2] Human body model: R = 1.5 k, C = 100 pF. 11. Thermal characteristics Table 39. Thermal characteristics Symbol Parameter Conditions Rth(j-a) thermal resistance from junction to ambient in free air TEA5777_1 Product data sheet (c) Koninklijke Philips Electronics N.V. 2006. All rights reserved. Rev. 01 -- 11 April 2006 28 of 47 TEA5777 Philips Semiconductors Low-power AM/FM stereo radio for handheld applications 12. Characteristics Table 40. Static characteristics VCCA = VCCD = 3 V; Tamb = 25 C; unless otherwise specified. Symbol Parameter Conditions Min Typ Max Unit Supplies VCCA analog supply voltage 2.7 3.0 7.0 V VCCD digital supply voltage 2.7 3.0 5.0 V ICCA analog supply current FM mode 10 13.9 17 mA AM mode 8 9.8 11 mA ICCD digital supply current Standby mode via bus control - 0.03 0.15 mA FM mode 0.5 0.8 1.5 mA AM mode 0.5 0.8 1.5 mA Standby mode via bus control - 0.13 0.25 mA 0.2 - VCCA - 0.3 V - 1.6 - DC operating voltages output voltage VO on pin CPOUT unloaded tuning voltage range on pins XTAL1 and XTAL2 on pin TMUTE 0.2 - 0.8 V - 1.2 V - 1.25 - V FM - - - V AM - 1.25 - V - 2.5 - V FM 0.675 0.750 0.825 V AM 0.55 0.65 0.75 V on pin VREF on pin V25DIG on pins VAFL and VAFR on pin MPXOUT FM 1 1.25 1.5 V AM - 0 - V - 2.5 - V FM - 0.75 - V AM 0 - 2.5 V FM - - - V AM - 2.3 - V on pin V25IF on pin PILDET/AMRFAGC on pin VAMLNA input voltage VI on pin MPXIN on pins RFIN1 and RFIN2 [1] V 0.1 FM AM on pin AGC2CAP [1] unloaded FM 0.7 0.75 0.8 V AM - 0 - V FM 0 1.75 - V AM - 0 - V These minimum and maximum values are typical values. TEA5777_1 Product data sheet (c) Koninklijke Philips Electronics N.V. 2006. All rights reserved. Rev. 01 -- 11 April 2006 29 of 47 TEA5777 Philips Semiconductors Low-power AM/FM stereo radio for handheld applications Table 41. Digital input and output characteristics VCCA = VCCD = 3 V; Tamb = 25 C; unless otherwise specified. Symbol Parameter Conditions Min Typ Max Unit - 2.4 - V - 109.7 - mV Software programmable ports: pins SWPORT1 and SWPORT2 VOH HIGH-level output voltage IO = 0 A VOL LOW-level output voltage IO = 1 mA on pin SWPORT1 on pin SWPORT2 Io(source) output source current Io(sink) output sink current - 105.5 - mV VO = 0 V -6 -9 -14 mA VO = 3 V 6 9 14 mA on pin SWPORT1 - 7.85 - mA on pin SWPORT2 - 8.04 - mA VO = 0.8 V; Rpu = 1 k Digital inputs VIH HIGH-level input voltage 0.45VCCD - - V VIL LOW-level input voltage - - 0.2VCCD V Digital outputs: pins CLOCK, DATA and WRITE_READ VOL LOW-level output voltage IOL = 500 A; open-collector - - 450 mV IOL LOW-level output current open-collector 500 - - A Min Typ Max Unit Table 42. Bus timing characteristics VCCA = VCCD = 3 V; Tamb = 25 C; unless otherwise specified. Symbol Parameter Timing Conditions I2C-bus fSCL SCL clock frequency - - 400 kHz tHIGH HIGH period of the SCL clock 1 - - s tLOW LOW period of the SCL clock 1 - - s Timing 3-wire bus; see Figure 7 and Figure 8 fi(clk) clock input frequency - - 1 MHz tclk(H) clock HIGH time 300 - - ns tclk(L) clock LOW time 300 - - ns Write mode tw(W) write enable pulse width 1 - - s tsu(clk) clock setup time 300 - - ns tsu(D) data input set-up time in write mode 100 - - ns th(D) data input hold time in write mode 100 - - ns Read mode tw(R) read enable pulse width 1 - - s tsu(clk) clock setup time 300 - - ns th(Q) data output hold time in read mode 10 - - ns td(Q) data output delay time in read mode - - 100 ns TEA5777_1 Product data sheet (c) Koninklijke Philips Electronics N.V. 2006. All rights reserved. Rev. 01 -- 11 April 2006 30 of 47 TEA5777 Philips Semiconductors Low-power AM/FM stereo radio for handheld applications 50 % WRITE_READ tw(W) tsu(clk) CLOCK 50 % 50 % th(D) tsu(D) valid data 50 % DATA 001aae434 Fig 7. 3-wire bus write data 50 % WRITE_READ tw(R) tsu(clk) CLOCK tclk(H) 50 % 50 % tclk(L) th(Q) td(Q) 50 % DATA 50 % 001aae435 Fig 8. 3-wire bus read data Table 43. Dynamic characteristics VCCA = VCCD = 3 V; Tamb = 25 C; all values are given in RMS; unless otherwise specified. Symbol Parameter Conditions Min Typ Max Unit FM voltage controlled oscillator: pins VCOTANK1 and VCOTANK2 fosc oscillator frequency VCPOUT = 0.2 V to (VCCA - 0.3 V) 130 - 217 MHz Vo output voltage measured between pins VCOTANK1 and VCOTANK2; fosc = 200 MHz; Q = 40; L = 33 nH - 500 - mV ICCA(VCO) VCO analog supply current 0.5 1 3 mA Crystal oscillator: pins XTAL1 and XTAL2 fxtal crystal frequency internal reference source selected - 4 - MHz fxtal crystal frequency accuracy fxtal = 4 MHz - 20 50 ppm Vo(xtal)(p-p) peak-to-peak crystal oscillator measured between pins XTAL1 and XTAL2 output voltage - 280 - mV VO(bias) bias output voltage - 1.6 - V Ri input resistance 150 - - measured between pins XTAL1 and XTAL2 TEA5777_1 Product data sheet (c) Koninklijke Philips Electronics N.V. 2006. All rights reserved. Rev. 01 -- 11 April 2006 31 of 47 TEA5777 Philips Semiconductors Low-power AM/FM stereo radio for handheld applications Table 43. Dynamic characteristics ...continued VCCA = VCCD = 3 V; Tamb = 25 C; all values are given in RMS; unless otherwise specified. Symbol Parameter Conditions Min Typ Max Unit Ci input capacitance measured between pins XTAL1 and XTAL2 - 16 - pF External reference frequency input: pin SWPORT2/EXTIN fi input frequency FM - 13 - MHz AM - 13 - MHz 150 - 1800 mV [1] Vi input voltage external applied VI input voltage no external input signal applied - 0.9 - V Zi input impedance at indicated input frequency - 100 - k FM band from 87.5 MHz to 108 MHz; step = 100 kHz - 2.3 - s AM band from 522 kHz to 1620 kHz; AM delay = 40 ms - 10 - s FM - 10 - ms AM: MW - 10 - ms - 10 - ms MHz Synthesizer tsrch tacq search time acquisition time synthesizer search time for empty band synthesizer preset acquisition time between two band limits AM: LW fRF RF frequency [2] FM fstep = 10 kHz; fIF = 150 kHz 10.24 - 81.91 fstep = 33.333 kHz; fIF = 133.333 kHz 34.13 - 273.03 MHz 51.2 - 409.55 MHz LW 128 - 511.75 kHz MW 512 - 2047 fstep = 50 kHz; fIF = 150 kHz AM; fstep = 1 kHz; fIF = 21 kHz [2] kHz Synthesizer programmable divider D/Dprog programmable divider ratio Dprog(step) programmable divider step NVCO(AM) AM VCO divider FM 1024 8191 AM 512 2047 - 1 - AM MW - 8 - AM LW - 32 - Synthesizer reference divider D/Dref(xtal) crystal reference divider ratio internal reference frequency; fxtal = 4 MHz FM fref(RF) = 10 kHz; fIF = 150 kHz - 200 - fref(RF) = 33.333 kHz; fIF = 133.333 kHz - 60 - fref(RF) = 50 kHz; fIF = 150 kHz - 40 - - 500 - AM fref(RF) = 1 kHz; fIF = 21 kHz TEA5777_1 Product data sheet (c) Koninklijke Philips Electronics N.V. 2006. All rights reserved. Rev. 01 -- 11 April 2006 32 of 47 TEA5777 Philips Semiconductors Low-power AM/FM stereo radio for handheld applications Table 43. Dynamic characteristics ...continued VCCA = VCCD = 3 V; Tamb = 25 C; all values are given in RMS; unless otherwise specified. Symbol Parameter Conditions D/Dref(ext) external reference divider ratio external reference frequency; fi = 13 MHz Min Typ Max Unit FM fref(RF) = 10 kHz - 650 - fref(RF) = 33.333 kHz - 195 - fref(RF) = 50 kHz - 130 - - 1625 - high current range 300 350 410 A low current range 200 250 300 A high current range -200 -250 -300 A low current range -140 -170 -200 A - 13 - bit AM fref(RF) = 1 kHz Charge pump: pin CPOUT Io(sink) output sink current Io(source)(M) peak source output current IF counter NIFc IF counter length NIFc(result) IF counter result in-window or out-window - 1 - bit Vsens sensitivity voltage FM - 5 - V AM - - - V fIF(window) IF window width frequency FM bit IFW = 0 -10 +10 kHz bit IFW = 1 -20 +20 kHz bit IFW = 0 -2 +2 kHz bit IFW = 1 -4 +4 kHz AM IF counter time tIFc td(IFc) IF counter delay time period measuring time FM - 20 - ms AM - 5 - ms - 5 - ms bit AMDELAY = 0 - 40 - ms bit AMDELAY = 1 - 80 - ms FM AM [1] Works with digital input signal from 0 V to 1.4 V. [2] Programmable frequency range of the synthesizer referred to the antenna input. TEA5777_1 Product data sheet (c) Koninklijke Philips Electronics N.V. 2006. All rights reserved. Rev. 01 -- 11 April 2006 33 of 47 TEA5777 Philips Semiconductors Low-power AM/FM stereo radio for handheld applications Table 44. FM performance VCCA = VCCD = 3 V; Tamb = 25 C; fRF = 100 MHz; fmod = 1 kHz; f = 22.5 kHz; deemp = 50 s; all AC values are given in RMS; see test circuit of Figure 9; unless otherwise specified. Symbol Parameter Conditions Min Typ Max Unit measured between pins RFIN1 and RFIN2 - 300 - - 4 - pF - 2.7 3.5 V - 1000 - mV THD < 1 % 75 102.7 - kHz THD < 1.5 % 75 110.1 - kHz - 97 - dBV - 96 - dBV Inputs Input: pins RFIN1 and RFIN2 Ri input resistance Ci input capacitance FM dummy Vi input voltage Vi = Vi2 = sensitivity at dummy input; (S+N)/N = 26 dB; L = R; Baud(-3dB) = 300 Hz to 15 kHz A-weighted; fIF = 133.333 kHz [1] large signal voltage handling capacity; THD < 10 % FM channel fAF(M) peak AF frequency deviation Vi2 = 1 mV; fmod = 1 kHz, L = R; fIF = 133.333 kHz IP3ib in-band third-order intercept point f1 = 200 kHz; f2 = 400 kHz; fRF = 98 MHz [2] IP3ob out-band third-order intercept point f1 = 5 MHz; f2 = 10 MHz; fRF = 88 MHz or 103 MHz [2] S+300 high-side 300 kHz selectivity 40 - - dB S-300 low-side 300 kHz selectivity 35 - - dB image image rejection fRF = 87.5 MHz to 108 MHz 25 41 - dB Baud(-3dB) -3 dB audio bandwidth Vi2 = 1 mV; fFM(max) = 22.5 kHz - - 50 Hz 12 500 - - Hz low-end high-end [3] PSRR power supply rejection ratio VCCA = 147 mV (RMS); fripple = 1 kHz - 42 - dB AM AM suppression 100 V < Vi2 < 10 mV; m = 0.3; fmod = 1 kHz - 50 - dB I and Q channel IF filter fIF IF frequency fstep = 33.333 kHz - 133.333 - kHz fstep = 10 kHz or 50 kHz - 150 - kHz fc(IF) IF center frequency deviation all combinations - - 5.5 kHz BIF IF filter bandwidth fIF = 133.333 kHz 108 110 112 kHz fIF = 150 kHz 123 125 127 kHz Outputs MPX output: pin MPXOUT Vo Io(AC)M output voltage Vi2 = 1 mV fIF = 133.333 kHz 75 104 125 mV fIF = 150 kHz 60 82 100 mV - 100 - A peak AC output current TEA5777_1 Product data sheet (c) Koninklijke Philips Electronics N.V. 2006. All rights reserved. Rev. 01 -- 11 April 2006 34 of 47 TEA5777 Philips Semiconductors Low-power AM/FM stereo radio for handheld applications Table 44. FM performance ...continued VCCA = VCCD = 3 V; Tamb = 25 C; fRF = 100 MHz; fmod = 1 kHz; f = 22.5 kHz; deemp = 50 s; all AC values are given in RMS; see test circuit of Figure 9; unless otherwise specified. Symbol Parameter Conditions Min Typ Max Unit VO output voltage properly tuned 1 1.25 1.5 V THD total harmonic distortion Vi2 = 1 mV; f = 75 kHz; with external deemp = 50 s; Baud(-3dB) limited to 15 kHz - 0.55 1.5 % S/N signal-to-noise ratio Vi2 = 1 mV; L = R; Baud(-3dB) = 300 Hz to 15 kHz A-weighted; fIF = 133.333 kHz - 60 - dB Zo output impedance 300 420 550 CL load capacitance - - 40 pF RL load resistance 33 - - k fIF = 133.333 kHz 70 95 120 mV fIF = 150 kHz 55 75 95 mV start ADC - 5 - V step size of ADC - 4.7 - dB - 0.2 - V AF output: pins VAFL and VAFR Vo(AF) AF output voltage Vi2 = 1 mV, fFM(max) = 22.5 kHz FM IF level detector Input FM dummy input voltage Vi Vi = Vi2 = detector level voltage Level output: pin TMUTE VO output voltage Vi2 = 0 V Vi2 = 5 mV - 0.8 - V Vo(slope) output voltage slope 10 mV < Vi2 < 1 mV - 214 - mV/ 20dB Ro output resistance 200 250 350 k [1] The sensitivity at the dummy input is equivalent to EMF in a 75 system. [2] Related to LNA input. [3] With a pre-emphasis of 50 s. TEA5777_1 Product data sheet (c) Koninklijke Philips Electronics N.V. 2006. All rights reserved. Rev. 01 -- 11 April 2006 35 of 47 TEA5777 Philips Semiconductors Low-power AM/FM stereo radio for handheld applications Table 45. AM performance VCCA = VCCD = 3 V; Tamb = 25 C; fRF = 918 kHz; fmod = 1 kHz; m = 0.3; deemp = 75 s; Vi1 measured at input of matching network; all AC values are given in RMS; see test circuit of Figure 9; unless otherwise specified. Symbol Parameter Conditions Min Typ Max Unit - 0 - V Inputs AM RF input: pin AMRFIN VI input voltage II input current VPILDET/AMRFAGC = 0 V - 0 - A Vi input voltage RF sensitivity at dummy input; Vi = Vi1; (S+N)/N = 26 dB; A-weighting filter - 155 - V large signal voltage handling capability; THD < 10 % - 300 - mV - 2.9 - mV/m low-end - - 50 Hz high-end E electric field strength RF sensitivity with ferroceptor; (S+N)/N = 26 dB; A-weighting filter -3 dB audio bandwidth Vi1 = 5 mV [1] AM channel Overall data Baud(-3dB) 1.5 2.1 - kHz S/N signal-to-noise ratio Vi1 = 5 mV; A-weighting filter 40 48 - dB THD total harmonic distortion Vi1 = 5 mV; m = 0.8; bit AGCRF = 0 (slow); bit AGCIF = 0 (slow); Baud(-3dB) limited to 15 kHz - 1 2.5 % PSRR power supply rejection ratio VCCA = 147 mV (RMS); fripple = 1 kHz - 34 - dB S+9 high-side 9 kHz selectivity measured at dummy input Vi1 25 32 - dB S-9 low-side 9 kHz selectivity measured at dummy input Vi1 25 30 - dB S+27 high-side 27 kHz selectivity measured at dummy input Vi1 45 58 - dB S-27 low-side 27 kHz selectivity measured at dummy input Vi1 45 58 - dB S+100 high-side 100 kHz selectivity measured at dummy input Vi1 45 59 - dB S-100 low-side 100 kHz selectivity measured at dummy input Vi1 45 59 - dB image rejection 520 kHz fRF 1720 kHz 40 - - dB minimum C[6:0] = 000 0000 - 20.5 - pF maximum C[6:0] = 111 1010 390 453 544 pF - 122 - C[6:0] = 000 0000 - 0 - pF C[6:0] = 111 1111 - 17 - pF pF image [2] Capacitance bank Ci input capacitance Nstep(bank) number of bank steps Calign alignment capacitance bit CALLIGN = 0 bit CALLIGN = 1 Calign(step) alignment capacitance step - 0.134 - Nstep(align) number of alignment steps - 128 - TEA5777_1 Product data sheet (c) Koninklijke Philips Electronics N.V. 2006. All rights reserved. Rev. 01 -- 11 April 2006 36 of 47 TEA5777 Philips Semiconductors Low-power AM/FM stereo radio for handheld applications Table 45. AM performance ...continued VCCA = VCCD = 3 V; Tamb = 25 C; fRF = 918 kHz; fmod = 1 kHz; m = 0.3; deemp = 75 s; Vi1 measured at input of matching network; all AC values are given in RMS; see test circuit of Figure 9; unless otherwise specified. Symbol Parameter Conditions Min Typ Max Unit LNA gain bit LNA = 0 (5 x) - 14 - dB bit LNA = 1 (10 x) - 20 - dB VPILDET/AMRFAGC = 0 V - 0 - dB VPILDET/AMRFAGC = 2 V - 25 - dB RFB = 0 (low feed-back) - 166 - k RFB = 1 (high feed-back) - 366 - k RFB = 0 (low feed-back) - 91 - k RFB = 1 (high feed-back) - 200 - k LNA GLNA AGC(RF) RF AGC attenuation input resistance Ri bit LNA = 0 (5 x) bit LNA = 1 (10 x) I and Q channel IF filter fIF IF frequency - 21 - kHz fIF IF frequency deviation - - 0.2 kHz BIF IF filter bandwidth - 8 - kHz Outputs AF output: pins VAFL and VAFR Vo(AF) AF output voltage Vi1 = 5 mV 72 90 108 mV VO output voltage properly tuned 0.55 0.65 0.75 V Zo output impedance 300 500 800 start ADC - 50 - V end ADC - 2 - mV Vi1 = 0 V 0.1 0.15 0.3 V Vi1 = 10 mV 0.8 1 1.2 V 100 V< Vi1 < 1 mV - 375 - mV/ 20dB 260 360 480 k AM IF level detector Input AM dummy input voltage Vi Vi = Vi2 = detector level voltage; LNA = 1 and RFB = 0 Level output: pin TMUTE output voltage VO Vo(slope) output voltage slope Zo output impedance [1] With ferroceptor C8E-A0424 TOKO Inc. [2] Without antenna input contribution. TEA5777_1 Product data sheet (c) Koninklijke Philips Electronics N.V. 2006. All rights reserved. Rev. 01 -- 11 April 2006 37 of 47 TEA5777 Philips Semiconductors Low-power AM/FM stereo radio for handheld applications Table 46. Stereo decoder characteristics VCCA = VCCD = 3 V; Tamb = 25 C; deemp= 50 s; not forced to mono; all AC values are given in RMS; see test circuit of Figure 9; unless otherwise specified. Symbol Parameter Conditions Min Typ Max Unit Input: pin MPXIN VI input voltage 0.7 0.75 0.8 V Ri input resistance 300 400 500 k -1.1 -0.82 -0.4 dB MPX stereo decoder channel Overall data [1] Gv voltage gain fmod = 1 kHz cs channel separation Vi3 = 300 mV; fmod = 1 kHz; Vpilot = 30 mV; R = 1 and L = 0 or R = 0 and L = 1; VTMUTE = 1 V; fIF = 133.333 kHz; Baud(-3dB) limited to 15 kHz 26 40 - dB (S+N)/N signal plus noise-to-noise ratio measured at AF output; L = R; Vi3 = 300 mV; fmod = 1 kHz; Vpilot = 30 mV; A-weighted - 68.5 - dB THD total harmonic distortion measured at AF output; L = R; VMPXOUT = 300 mV; fmod = 1 kHz; Vpilot = 30 mV; Baud(-3dB) limited to 15 kHz - 0.05 0.5 % 19 19 kHz suppression reference 300 mV = 0 dB 23 28 - dB 38 38 kHz suppression reference 300 mV = 0 dB 31 52 - dB switching to stereo - 13 16 mV switching back to mono 3 6 - mV mono hysteresis 6 7 8 mV bit DEEM = 0 - 50 - s bit DEEM = 1 - 75 - s measured on pins VAFL and VAFR; audio muted with bit MUTE = 1; A-weighted 60 70 - dB start level - 15 - V stop level - 150 - V Pilot detector Vpilot pilot voltage VTMUTE = 1 V Integrated de-emphasis deemp de-emphasis time constant Hard mute mute mute attenuation SDS curve (blend function) Vi input voltage SDS region voltage Vi = Vi1; Vi3 = 300 mV; fmod = 1 kHz; Vpilot = 30 mV; R = 1 and L = 0 or R = 0 and L = 1; bit SDSOFF = 0; bit DOFF = 0; bit FOMO = 0 TEA5777_1 Product data sheet (c) Koninklijke Philips Electronics N.V. 2006. All rights reserved. Rev. 01 -- 11 April 2006 38 of 47 TEA5777 Philips Semiconductors Low-power AM/FM stereo radio for handheld applications Table 46. Stereo decoder characteristics ...continued VCCA = VCCD = 3 V; Tamb = 25 C; deemp= 50 s; not forced to mono; all AC values are given in RMS; see test circuit of Figure 9; unless otherwise specified. Symbol Parameter Conditions Min Typ Max Unit AF output: pins VAFL and VAFR Vo(AF) AF output voltage measured with respect to input pin MPXIN; Vi3 = 100 mV; L = R; fmod = 1 kHz 83 91 99 mV Io(sink)M peak sink output current Vi3 = 100 mV; L = R; fmod = 1 kHz - 60 - A VO output voltage measured with respect to input pin MPXIN; FM mode 0.675 0.75 0.825 V Ro output resistance 300 500 800 [1] This includes the attenuation due to the de-emphasis. At 1 kHz this is approximately 0.4 dB for 50 s. TEA5777_1 Product data sheet (c) Koninklijke Philips Electronics N.V. 2006. All rights reserved. Rev. 01 -- 11 April 2006 39 of 47 TEA5777 Philips Semiconductors Low-power AM/FM stereo radio for handheld applications 13. Application information 13.1 AM coil requirements and alignment The AM receiver is a magnetic field receiver. It can be used with a ferroceptor or an antenna. In both cases, the antenna can be seen as an inductor that should be in resonance with the on-chip C-bank at the frequency of interest. The C-bank values are such that a nominal device and nominal antenna inductor value result in the correct tuning grid depending upon bit STEP0; see Table 16 and Table 27.This puts requirements on the nominal value and tuning range of the AM antenna. Due to spread an alignment is needed. 13.1.1 AM coil requirements In order to align the antenna C-bank the antenna coil must meet the requirements of Table 47. Table 47. AM coil requirements Parameter Value Nominal value 203 H Tuning range needed for alignment (excluding own tolerance) 16 % Optimal TC1[1] -50 ppm/K [1] Optimal means that the LC product (L of AM coil and C of C-bank) has zero TC1, since TC1(C-bank) = +50 ppm/K. Having TC1(L of AM coil) equal to -50 ppm/K is not a hard requirement. However, it is advisable to keep the TC1(LC product) < 350 ppm/K. 13.1.2 AM coil alignment Alignment is setting the right C-align value and tuning the AM coil. This is done as follows: 1. Set C-align = 0 2. Measure the resonance frequency 1 (frsn1) with C-bank = 0 3. Measure the resonance frequency 2 (frsn2) with C-bank = 122 4. Set C-bank = 0: - Tune C-align until the resonance frequency 3 becomes frsn3 - Tune AM coil until the resonance frequency 4 becomes frsn4 The frsn3 and frsn4 values can be calculated based upon frsn1 and frsn2. This procedure only has to be done once in order to fit the AM coil and device together. The C-align data has to be stored in the microcontroller and should be written every time the device is powered up. For C-align the internal digital controlled capacitor is used in principle. It is also possible to use an external trim capacitor (0 pF to 17 pF) instead. This has the advantage that no alignment data has to be stored in the microcontroller at the cost of one trim capacitor. TEA5777_1 Product data sheet (c) Koninklijke Philips Electronics N.V. 2006. All rights reserved. Rev. 01 -- 11 April 2006 40 of 47 xxxx xxxxxxxxxxxxxxxxxxxxxxxxxxxxxx x xxxxxxxxxxxxxx xxxxxxxxxx xxx xxxxxx xxxxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxxxxxxxxxxxxx xxxxx xxxxxx xx xxxxxxxxxxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxx xxxxxxx xxxxxxxxxxxxxxxxxxx xxxxxxxxxxxxxxxx xxxxxxxxxxxxxx xxxxxx xx xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxxxxxxxxxxxxxxx xxxxxxx xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxx xxxxx x x Vi3 24 RFIN1 C17 R12 L3 C16 C14 C15 GNDRF RFIN2 PILDET/AMRFAGC VAMLNA AGC2CAP GNDA V25DIG VAFL VREF 17 25 C21 16 26 15 27 14 28 13 TEA5777HL 29 12 30 11 31 10 32 9 CPOUT 1 2 3 4 5 6 7 R10 VCCA TMUTE VCC C6 WRITE_READ DATA write/read data CLOCK clock XTAL1 GNDD X1 40 MHz XTAL2 8 R8 VCC L6 L2 AM dummy Vi(ext) C19 R15 C11 R4 D8 D9 R14 Vi1 50 Fig 9. Test circuit 001aab437 TEA5777 41 of 47 (c) Koninklijke Philips Electronics N.V. 2006. All rights reserved. L1 C12 bus control Low-power AM/FM stereo radio for handheld applications Rev. 01 -- 11 April 2006 50 18 C1 VCCD C18 19 SWPORT2/EXTIN L4 C7 SWPORT1 Vi2 R13 20 AMRFIN GNDIF FM dummy R11 V25IF 21 GNDVCO_AMRF C5 22 VCOTANK2 BUSMODE 23 VCOTANK1 VCC C20 MPXIN VAFR MPXOUT C10 Philips Semiconductors 14. Test information TEA5777_1 Product data sheet audio R L TEA5777 Philips Semiconductors Low-power AM/FM stereo radio for handheld applications Table 48. Test circuit components Part Specification number Value Tolerance Remark Type C1 100 nF 20 % C0603 C5 3.3 F 20 % 6V3 C6 100 nF 20 % C0603 C7 2.2 F 20 % 6V3 C10 220 nF 20 % C0805 C11 15 nF 20 % C0603 C12 220 nF 20 % C0805 C14 1 F 20 % C1206 C15 3.3 F 20 % 6V3 B45196E1335M10*, EPCOS C16 33 pF 5% C0603 NP0 C17 39 pF 5% C0603 NP0 C18 12 pF 5% C0603 NP0 C19 2.2 F 20 % 6V3 B45196E1225M10*, EPCOS C20 220 nF 20 % C0603 NP0 C21 1 F 20 % 16 V B45196E3105M10*, EPCOS D8 BB202 D9 BB202 L1 33 nH 5% Q = 40 TOKO, LLQ1608-A33N_J L2 33 nH 5% Q = 40 TOKO, LLQ1608-A33N_J L3 120 nH 5% L4 220 nH 5% L6 200 nH R4 2.2 k R8 100 W 20 % R0603 R10 47 W 20 % R0603 R11 10 W 5% R0603 (part of the FM dummy, i.e. 50 to 75 ) R12 60 W 5% R0603 (part of the FM dummy, i.e. 50 to 75 ) R13 45 W 5% R0603 (part of the FM dummy, i.e. 50 to 75 ) R14 51 W 5% R0603 (part of the AM dummy) R15 1W 5% R0603 (part of the AM dummy) X1 4 MHz HC49 NDK low leakage (< 5 nA), X7R TOKO, LLQ1608-AR220N_J tuning range larger than -16 % to +16 %; Sagami 940927266B (part of the AM dummy) R0603 TEA5777_1 Product data sheet B45196E1225M10*, EPCOS TOKO, LLQ1608-AR120N_J Q > 120 20 % B45196E1335M10*, EPCOS (c) Koninklijke Philips Electronics N.V. 2006. All rights reserved. Rev. 01 -- 11 April 2006 42 of 47 TEA5777 Philips Semiconductors Low-power AM/FM stereo radio for handheld applications 15. Package outline HVQFN48: plastic thermal enhanced very thin quad flat package; no leads; 48 terminals; body 7 x 7 x 0.85 mm A B D SOT619-1 terminal 1 index area A E A1 c detail X C e1 1/2 e e 24 y y1 C v M C A B w M C b 13 L 25 12 e e2 Eh 1/2 e 1 36 terminal 1 index area 48 37 Dh X 0 2.5 scale DIMENSIONS (mm are the original dimensions) UNIT mm A(1) max. A1 b 1 0.05 0.00 0.30 0.18 5 mm c D (1) Dh E (1) Eh 0.2 7.1 6.9 5.25 4.95 7.1 6.9 5.25 4.95 e e1 5.5 0.5 e2 L v 5.5 0.5 0.3 0.1 w 0.05 y y1 0.05 0.1 Note 1. Plastic or metal protrusions of 0.075 mm maximum per side are not included. REFERENCES OUTLINE VERSION IEC JEDEC JEITA SOT619-1 --- MO-220 --- EUROPEAN PROJECTION ISSUE DATE 01-08-08 02-10-18 Fig 10. Package outline SOT619-1 (HVQFN48) TEA5777_1 Product data sheet (c) Koninklijke Philips Electronics N.V. 2006. All rights reserved. Rev. 01 -- 11 April 2006 43 of 47 TEA5777 Philips Semiconductors Low-power AM/FM stereo radio for handheld applications LQFP32: plastic low profile quad flat package; 32 leads; body 7 x 7 x 1.4 mm SOT358-1 c y X 24 A 17 16 25 ZE e E HE A A2 A 1 (A 3) wM bp Lp pin 1 index L 32 9 detail X 1 8 e ZD v M A wM bp D B HD v M B 0 2.5 5 mm scale DIMENSIONS (mm are the original dimensions) UNIT A max. A1 A2 A3 bp c D (1) E (1) e HD HE L Lp v w y mm 1.6 0.20 0.05 1.45 1.35 0.25 0.4 0.3 0.18 0.12 7.1 6.9 7.1 6.9 0.8 9.15 8.85 9.15 8.85 1 0.75 0.45 0.2 0.25 0.1 Z D (1) Z E (1) 0.9 0.5 0.9 0.5 o 7 o 0 Note 1. Plastic or metal protrusions of 0.25 mm maximum per side are not included. REFERENCES OUTLINE VERSION IEC JEDEC SOT358 -1 136E03 MS-026 JEITA EUROPEAN PROJECTION ISSUE DATE 03-02-25 05-11-09 Fig 11. Package outline SOT358-1 (LQFP32) TEA5777_1 Product data sheet (c) Koninklijke Philips Electronics N.V. 2006. All rights reserved. Rev. 01 -- 11 April 2006 44 of 47 TEA5777 Philips Semiconductors Low-power AM/FM stereo radio for handheld applications 16. Abbreviations Table 49. Abbreviations Acronym Description ADC Analog-to-Digital Converter AGC Automatic Gain Control BiCMOS Bi-polar Complementary Metal-Oxide Semiconductor FET Field-Effect Transistor GSM Global System for Mobile communication HBM Human Body Model I/Q In-phase/Quadrature-phase LNA Low Noise Amplifier LW Long Wave MOSFET Metal-Oxide-Semiconductor Field-Effect Transistor MPX Multiplex MM Machine Model MW Medium Wave OIRT Organisation Internationale de Radiodiffusion et de Television (International Radio and Television Organization) PLL Phase-Locked Loop RDS Radio Data System RSSI Receiver Signal Strength Information SDS Signal Dependent Stereo VCO Voltage Controlled Oscillator 17. Revision history Table 50. Revision history Document ID Release date Data sheet status Change notice Supersedes TEA5777_1 20060411 Product data sheet - - TEA5777_1 Product data sheet (c) Koninklijke Philips Electronics N.V. 2006. All rights reserved. Rev. 01 -- 11 April 2006 45 of 47 TEA5777 Philips Semiconductors Low-power AM/FM stereo radio for handheld applications 18. Legal information 18.1 Data sheet status Document status[1][2] Product status[3] Definition Objective [short] data sheet Development This document contains data from the objective specification for product development. Preliminary [short] data sheet Qualification This document contains data from the preliminary specification. Product [short] data sheet Production This document contains the product specification. [1] Please consult the most recently issued document before initiating or completing a design. [2] The term `short data sheet' is explained in section "Definitions". [3] The product status of device(s) described in this document may have changed since this document was published and may differ in case of multiple devices. The latest product status information is available on the Internet at URL http://www.semiconductors.philips.com. 18.2 Definitions Draft -- The document is a draft version only. The content is still under internal review and subject to formal approval, which may result in modifications or additions. Philips Semiconductors does not give any representations or warranties as to the accuracy or completeness of information included herein and shall have no liability for the consequences of use of such information. Short data sheet -- A short data sheet is an extract from a full data sheet with the same product type number(s) and title. A short data sheet is intended for quick reference only and should not be relied upon to contain detailed and full information. For detailed and full information see the relevant full data sheet, which is available on request via the local Philips Semiconductors sales office. In case of any inconsistency or conflict with the short data sheet, the full data sheet shall prevail. 18.3 Disclaimers General -- Information in this document is believed to be accurate and reliable. However, Philips Semiconductors does not give any representations or warranties, expressed or implied, as to the accuracy or completeness of such information and shall have no liability for the consequences of use of such information. Right to make changes -- Philips Semiconductors reserves the right to make changes to information published in this document, including without limitation specifications and product descriptions, at any time and without notice. This document supersedes and replaces all information supplied prior to the publication hereof. Suitability for use -- Philips Semiconductors products are not designed, authorized or warranted to be suitable for use in medical, military, aircraft, space or life support equipment, nor in applications where failure or malfunction of a Philips Semiconductors product can reasonably be expected to result in personal injury, death or severe property or environmental damage. Philips Semiconductors accepts no liability for inclusion and/or use of Philips Semiconductors products in such equipment or applications and therefore such inclusion and/or use is at the customer's own risk. Applications -- Applications that are described herein for any of these products are for illustrative purposes only. Philips Semiconductors makes no representation or warranty that such applications will be suitable for the specified use without further testing or modification. Limiting values -- Stress above one or more limiting values (as defined in the Absolute Maximum Ratings System of IEC 60134) may cause permanent damage to the device. Limiting values are stress ratings only and operation of the device at these or any other conditions above those given in the Characteristics sections of this document is not implied. Exposure to limiting values for extended periods may affect device reliability. Terms and conditions of sale -- Philips Semiconductors products are sold subject to the general terms and conditions of commercial sale, as published at http://www.semiconductors.philips.com/profile/terms, including those pertaining to warranty, intellectual property rights infringement and limitation of liability, unless explicitly otherwise agreed to in writing by Philips Semiconductors. In case of any inconsistency or conflict between information in this document and such terms and conditions, the latter will prevail. No offer to sell or license -- Nothing in this document may be interpreted or construed as an offer to sell products that is open for acceptance or the grant, conveyance or implication of any license under any copyrights, patents or other industrial or intellectual property rights. 18.4 Trademarks Notice: All referenced brands, product names, service names and trademarks are the property of their respective owners. I2C-bus -- logo is a trademark of Koninklijke Philips Electronics N.V. 19. Contact information For additional information, please visit: http://www.semiconductors.philips.com For sales office addresses, send an email to: sales.addresses@www.semiconductors.philips.com TEA5777_1 Product data sheet (c) Koninklijke Philips Electronics N.V. 2006. All rights reserved. Rev. 01 -- 11 April 2006 46 of 47 TEA5777 Philips Semiconductors Low-power AM/FM stereo radio for handheld applications 20. Contents 1 2 2.1 2.2 2.3 3 4 5 6 7 7.1 7.2 8 8.1 8.1.1 8.1.2 8.1.3 8.1.4 8.1.5 8.1.6 8.2 8.2.1 8.2.2 8.2.3 8.2.4 8.2.5 8.3 8.3.1 8.3.2 8.3.3 8.3.4 8.4 8.4.1 8.4.2 8.4.3 8.4.4 8.5 8.6 9 9.1 9.2 9.3 9.3.1 9.3.2 9.3.3 9.4 General description . . . . . . . . . . . . . . . . . . . . . . 1 Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 AM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 FM. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 Applications . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 Quick reference data . . . . . . . . . . . . . . . . . . . . . 2 Ordering information . . . . . . . . . . . . . . . . . . . . . 4 Block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . 5 Pinning information . . . . . . . . . . . . . . . . . . . . . . 6 Pinning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 Pin description . . . . . . . . . . . . . . . . . . . . . . . . . 7 Functional description . . . . . . . . . . . . . . . . . . . 9 AM radio part . . . . . . . . . . . . . . . . . . . . . . . . . 10 AM RF amplifier . . . . . . . . . . . . . . . . . . . . . . . 10 Tuning AM antenna circuit . . . . . . . . . . . . . . . 10 AM I/Q mixer. . . . . . . . . . . . . . . . . . . . . . . . . . 10 AM VCO . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 AM IF filter . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 AM IF amplification and AM detection . . . . . . 11 FM radio part . . . . . . . . . . . . . . . . . . . . . . . . . 11 Low noise RF amplifier . . . . . . . . . . . . . . . . . . 11 FM I/Q mixer . . . . . . . . . . . . . . . . . . . . . . . . . . 11 FM VCO . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 FM IF filter. . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 FM demodulator . . . . . . . . . . . . . . . . . . . . . . . 12 Stereo decoder . . . . . . . . . . . . . . . . . . . . . . . . 12 MPX decoder . . . . . . . . . . . . . . . . . . . . . . . . . 12 Signal strength depending mono/stereo blend 12 Pilot detector. . . . . . . . . . . . . . . . . . . . . . . . . . 12 De-emphasis. . . . . . . . . . . . . . . . . . . . . . . . . . 12 Tuning function . . . . . . . . . . . . . . . . . . . . . . . . 12 Reference frequency generation . . . . . . . . . . 13 Crystal oscillator . . . . . . . . . . . . . . . . . . . . . . . 13 IF counter . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 Automatic search operation . . . . . . . . . . . . . . 13 RF level information (RSSI) . . . . . . . . . . . . . . 14 Software programmable ports . . . . . . . . . . . . 14 Control functions via I2C-bus and 3-wire bus 15 Bus interface. . . . . . . . . . . . . . . . . . . . . . . . . . 15 Bus protocol . . . . . . . . . . . . . . . . . . . . . . . . . . 15 I2C-bus mode . . . . . . . . . . . . . . . . . . . . . . . . . 16 Write mode . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 Read mode . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 Dbus function in I2C-bus mode (silent readout) 17 3-wire bus mode . . . . . . . . . . . . . . . . . . . . . . . 18 9.4.1 9.4.2 9.4.3 9.5 9.5.1 9.5.1.1 9.5.1.2 9.5.2 9.5.2.1 9.5.2.2 10 11 12 13 13.1 13.1.1 13.1.2 14 15 16 17 18 18.1 18.2 18.3 18.4 19 20 Write mode. . . . . . . . . . . . . . . . . . . . . . . . . . . Read mode. . . . . . . . . . . . . . . . . . . . . . . . . . . Dbus function in 3-wire mode (silent readout) Data transfer in I2C-bus and 3-wire mode . . . Register definition in write mode . . . . . . . . . . FM write mode . . . . . . . . . . . . . . . . . . . . . . . . AM write mode . . . . . . . . . . . . . . . . . . . . . . . . Register definition in read mode . . . . . . . . . . FM read mode . . . . . . . . . . . . . . . . . . . . . . . . AM read mode . . . . . . . . . . . . . . . . . . . . . . . . Limiting values . . . . . . . . . . . . . . . . . . . . . . . . Thermal characteristics . . . . . . . . . . . . . . . . . Characteristics . . . . . . . . . . . . . . . . . . . . . . . . Application information . . . . . . . . . . . . . . . . . AM coil requirements and alignment . . . . . . . AM coil requirements . . . . . . . . . . . . . . . . . . . AM coil alignment. . . . . . . . . . . . . . . . . . . . . . Test information. . . . . . . . . . . . . . . . . . . . . . . . Package outline . . . . . . . . . . . . . . . . . . . . . . . . Abbreviations . . . . . . . . . . . . . . . . . . . . . . . . . Revision history . . . . . . . . . . . . . . . . . . . . . . . Legal information . . . . . . . . . . . . . . . . . . . . . . Data sheet status . . . . . . . . . . . . . . . . . . . . . . Definitions . . . . . . . . . . . . . . . . . . . . . . . . . . . Disclaimers. . . . . . . . . . . . . . . . . . . . . . . . . . . Trademarks . . . . . . . . . . . . . . . . . . . . . . . . . . Contact information . . . . . . . . . . . . . . . . . . . . Contents. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 19 19 20 20 20 22 25 25 26 28 28 29 40 40 40 40 41 43 45 45 46 46 46 46 46 46 47 Please be aware that important notices concerning this document and the product(s) described herein, have been included in section `Legal information'. (c) Koninklijke Philips Electronics N.V. 2006. All rights reserved. For more information, please visit: http://www.semiconductors.philips.com. For sales office addresses, email to: sales.addresses@www.semiconductors.philips.com. Date of release: 11 April 2006 Document identifier: TEA5777_1