Not Recommended For New Designs PCM2900B PCM2902B Burr-Brown Audio www.ti.com ........................................................................................................................................................................................... SLES229 - DECEMBER 2008 STEREO AUDIO CODEC WITH USB INTERFACE, SINGLE-ENDED ANALOG INPUT/OUTPUT, AND S/PDIF FEATURES 1 * PCM2900B: Without S/PDIF * PCM2902B: With S/PDIF * On-Chip USB Interface: - With Full-Speed Transceivers - Fully Compliant with USB 2.0 Specification - Certified by USB-IF - Partially Programmable Descriptors (1) - USB Adaptive Mode for Playback - USB Asynchronous Mode for Record - Bus Powered * 16-Bit Delta-Sigma ADC and DAC * Sampling Rate: - DAC: 32, 44.1, 48 kHz - ADC: 8, 11.025, 16, 22.05, 32, 44.1, 48 kHz * On-Chip Clock Generator with Single 12-MHz Clock Source * Single Power Supply: - 5 V Typical (VBUS) * Stereo ADC: - Analog Performance at VBUS = 5 V: - THD+N = 0.01% - SNR = 89 dB - Dynamic Range = 89 dB - Decimation Digital Filter: - Passband Ripple = 0.05 dB - Stop-Band Attenuation = 65 dB - Single-Ended Voltage Input - Antialiasing Filter Included - Digital HPF Included * 234 (1) The descriptor can be modified by changing a mask. * * Stereo DAC: - Analog Performance at VBUS = 5 V: - THD+N = 0.005% - SNR = 96 dB - Dynamic Range = 93 dB - Oversampling Digital Filter: - Passband Ripple = 0.1 dB - Stop-Band Attenuation = -43 dB - Single-Ended Voltage Output - Analog LPF Included Multifunctions: - Human Interface Device (HID) Function: - Volume and Mute Controls - Suspend Flag Function 28-Pin SSOP Package APPLICATIONS * * * * USB Audio Speaker USB Headset USB Monitor USB Audio Interface Box DESCRIPTION The PCM2900B/2902B is Texas Instruments' single-chip, USB, stereo audio codec with a USB-compliant full-speed protocol controller and S/PDIF (PCM2902B only). The USB protocol controller requires no software code, but the USB descriptors can be modified in some areas (for example, vendor ID and/or product ID). The PCM2900B/2902B employs SpActTM architecture, TI's unique system that recovers the audio clock from USB packet data. On-chip analog PLLs with SpAct architecture enable playback and record with low clock jitter as well as independent playback and record sampling rates. 1 2 3 4 Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet. SpAct is a trademark of Texas Instruments. System Two, Audio Precision are trademarks of Audio Precision, Inc. All other trademarks are the property of their respective owners. PRODUCTION DATA information is current as of publication date. Products conform to specifications per the terms of the Texas Instruments standard warranty. Production processing does not necessarily include testing of all parameters. Copyright (c) 2008, Texas Instruments Incorporated Not Recommended For New Designs PCM2900B PCM2902B SLES229 - DECEMBER 2008 ........................................................................................................................................................................................... www.ti.com This integrated circuit can be damaged by ESD. Texas Instruments recommends that all integrated circuits be handled with appropriate precautions. Failure to observe proper handling and installation procedures can cause damage. ESD damage can range from subtle performance degradation to complete device failure. Precision integrated circuits may be more susceptible to damage because very small parametric changes could cause the device not to meet its published specifications. PACKAGING/ORDERING INFORMATION (1) SPECIFIED TEMPERATURE RANGE PACKAGE MARKING PRODUCT PACKAGE-LEAD PACKAGE DESIGNATOR PCM2900BDB SSOP-28 DB -25C to +85C PCM2900B PCM2902BDB SSOP-28 DB -25C to +85C PCM2902B (1) ORDERING NUMBER TRANSPORT MEDIA, QUANTITY PCM2900BDB Rails, 47 PCM2900BDBR Tape and Reel, 2000 PCM2902BDB Rails, 47 PCM2902BDBR Tape and Reel, 2000 For the most current package and ordering information, see the Package Option Addendum at the end of this document, or see the TI website at www.ti.com. ABSOLUTE MAXIMUM RATINGS (1) Over operating free-air temperature range (unless otherwise noted). PARAMETER VBUS Supply voltage PCM2900B/PCM2902B UNIT -0.3 to 6.5 V Ground voltage differences, AGNDC, AGNDP, AGNDX, DGND, DGNDU 0.1 V SEL0, SEL1, TEST0 (DIN) (2) -0.3 to 6.5 V Digital input voltage Analog input voltage D+, D-, HID0, HID1, HID2, XTI, XTO, TEST1 (DOUT) (2), SSPND -0.3 to (VDDI + 0.3) < 4 V VINL, VINR, VCOM, VOUTR, VOUTL -0.3 to (VCCCI + 0.3) < 4 V VCCCI, VCCP1I, VCCP2I, VCCXI, VDDI -0.3 to 4 V 10 mA Input current (any pins except supplies) Ambient temperature under bias -40 to +125 C Tstg Storage temperature -55 to +150 C TJ Junction temperature +150 C Lead temperature (soldering, 5s) +260 C Package temperature (IR reflow, peak) +250 C (1) (2) 2 Stresses beyond those listed under Absolute Maximum Ratings may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated is not implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability. TEST0 and TEST1 apply to the PCM2900B; DIN and DOUT apply to the PCM2902B. Submit Documentation Feedback Copyright (c) 2008, Texas Instruments Incorporated Product Folder Link(s): PCM2900B PCM2902B Not Recommended For New Designs PCM2900B PCM2902B www.ti.com ........................................................................................................................................................................................... SLES229 - DECEMBER 2008 ELECTRICAL CHARACTERISTICS All specifications at TA = +25C, VBUS = 5 V, fS = 44.1 kHz, fIN = 1 kHz, and 16-bit data, unless otherwise noted. PCM2900B, PCM2902B PARAMETER TEST CONDITIONS MIN TYP MAX UNIT DIGITAL INPUT/OUTPUT Host interface Apply USB Revision 2.0, full speed Audio data format USB isochronous data format INPUT LOGIC D+, D- VIH High-level input voltage XTI, HID0, HID1, and HID2 SEL0, SEL1 DIN (PCM2902B) VIL IIH Low-level input voltage High-level input voltage 2 3.3 2.52 3.3 2 5.25 2.52 5.25 D+, D- 0.8 XTI, HID0, HID1, and HID2 0.9 SEL0, SEL1 0.8 DIN (PCM2902B) 0.9 D+, D-, XTI, SEL0, SEL1 10 HID0, HID1, and HID2 VIN = 3.3 V DIN (PCM2902B) 50 80 65 100 D+, D-, XTI, SEL0, SEL1 IIL Low-level input voltage HID0, HID1, and HID2 VDC VDC A 10 VIN = 0 V 10 DIN (PCM2902B) A 10 OUTPUT LOGIC D+, D- VOH High-level output voltage 2.8 DOUT (PCM2902B) IOH = -4 mA 2.8 SSPND IOH = -2 mA 2.8 VDC D+, D- VOL Low-level output DOUT voltage (PCM2902B) SSPND 0.3 IOL = 4 mA 0.5 IOL = 2 mA 0.5 VDC CLOCK FREQUENCY Input clock frequency, XTI 11.994 12 12.008 Submit Documentation Feedback Copyright (c) 2008, Texas Instruments Incorporated Product Folder Link(s): PCM2900B PCM2902B MHz 3 Not Recommended For New Designs PCM2900B PCM2902B SLES229 - DECEMBER 2008 ........................................................................................................................................................................................... www.ti.com ELECTRICAL CHARACTERISTICS (continued) All specifications at TA = +25C, VBUS = 5 V, fS = 44.1 kHz, fIN = 1 kHz, and 16-bit data, unless otherwise noted. PCM2900B, PCM2902B PARAMETER TEST CONDITIONS MIN TYP MAX UNIT ADC CHARACTERISTICS Resolution Audio data channel 8, 16 Bits 1, 2 Channel ADC Clock Frequency fS Sampling frequency 8, 11.025, 16, 22.05, 32, 44.1, 48 kHz ADC DC Accuracy Gain mismatch, channel-to-channel 1 5 % of FSR Gain error 2 10 % of FSR Bipolar zero error 0 % of FSR ADC Dynamic Performance (1) VIN = -1 dB (2), VCCCI = 3.67 V THD+N Total harmonic distortion plus noise 0.01 VIN = -1 dB (3) VIN = -60 dB SNR 0.02 0.1 % % 5 % Dynamic range A-weighted 81 89 dB Signal-to-noise ratio A-weighted 81 89 dB 80 85 dB Input voltage 0.6 VCCCI VPP Center voltage 0.5 VCCCI Channel separation Analog Input Input impedance Antialiasing filter frequency response -3 dB fIN = 20 kHz V 30 k 150 kHz -0.08 dB ADC Digital Filter Performance Passband 0.454 fS Stop band 0.583 fS Hz Passband ripple 0.05 Stop-band attenuation td HPF frequency response (1) (2) (3) 4 65 Delay time dB dB 17.4/fS -3 dB Hz 0.078 fS/1000 s Hz fIN = 1 kHz, using a System TwoTM audio measurement system by Audio PrecisionTM in the RMS mode with 20-kHz LPF, 400-Hz HPF in calculation. Using external voltage regulator for VCCCI (as shown in Figure 36 and Figure 37, using with REG103xA-A). Using internal voltage regulator for VCCCI (as shown in Figure 38 and Figure 39). Submit Documentation Feedback Copyright (c) 2008, Texas Instruments Incorporated Product Folder Link(s): PCM2900B PCM2902B Not Recommended For New Designs PCM2900B PCM2902B www.ti.com ........................................................................................................................................................................................... SLES229 - DECEMBER 2008 ELECTRICAL CHARACTERISTICS (continued) All specifications at TA = +25C, VBUS = 5 V, fS = 44.1 kHz, fIN = 1 kHz, and 16-bit data, unless otherwise noted. PCM2900B, PCM2902B PARAMETER TEST CONDITIONS MIN TYP MAX UNIT DAC CHARACTERISTICS Resolution Audio data channel 8, 16 Bits 1, 2 Channel DAC Clock Frequency fS Sampling frequency 32, 44.1, 48 kHz DAC DC Accuracy Gain mismatch channel-to-channel 1 5 % of FSR Gain error 2 10 % of FSR Bipolar zero error 2 % of FSR DAC Dynamic Performance (4) VOUT = 0 dB THD+N Total harmonic distortion plus noise Dynamic range EIAJ, A-weighted SNR Signal-to-noise ratio EIAJ, A-weighted 0.005 VOUT = -60 dB 0.016 % 3 % 87 93 dB 90 96 dB 86 92 dB Output voltage 0.6 VCCCI VPP Center voltage 0.5 VCCCI V Channel separation Analog Output VO Load impedance LPF frequency response AC coupling 10 -3 dB f = 20 kHz k 250 kHz -0.03 dB DAC Digital Filter Performance Passband Stop band Hz 0.1 dB Hz Passband ripple Stop-band attenuation td 0.445 fS 0.555 fS -43 Delay time dB 14.3 fS s POWER-SUPPLY REQUIREMENTS VBUS Voltage range Supply current PD Power dissipation VCCCI, VCCP1I, VCCP2I, VCCXI, VDDI Internal power-supply voltage 4.35 ADC, DAC operation 5 5.25 56 67 Suspend mode (5) 250 ADC, DAC operation 280 Suspend mode (5) 1.25 3.1 3.3 VDC mA A 352 3.5 mW VDC TEMPERATURE RANGE Operating temperature range JA (4) (5) -25 Thermal resistance +85 100 C C/W fOUT = 1 kHz, using a System Two audio measurement system by Audio Precision in the RMS mode with 20-kHz LPF, 400-Hz HPF. Under USB suspend state. Submit Documentation Feedback Copyright (c) 2008, Texas Instruments Incorporated Product Folder Link(s): PCM2900B PCM2902B 5 Not Recommended For New Designs PCM2900B PCM2902B SLES229 - DECEMBER 2008 ........................................................................................................................................................................................... www.ti.com PCM2900B PIN ASSIGNMENTS DB PACKAGE SSOP-28 (TOP VIEW) D+ D- VBUS DGNDU HID0 HID1 HID2 SEL0 SEL1 VCCCI AGNDC VINL VINR VCOM 1 2 3 4 5 6 7 8 9 10 11 12 13 14 PCM2900B 28 27 26 25 24 23 22 21 20 19 18 17 16 15 SSPND VDDI DGND TEST1 TEST0 VCCXI AGNDX XTI XTO VCCP2I AGNDP VCCP1I VOUTL VOUTR Table 1. PCM2900B TERMINAL FUNCTIONS TERMINAL NAME NO. I/O AGNDC 11 - Analog ground for codec AGNDP 18 - Analog ground for PLL AGNDX 22 - Analog ground for oscillator D- 2 I/O USB differential input/output minus (1) D+ 1 I/O USB differential input/output plus (1) DGND 26 - Digital ground DGNDU 4 - Digital ground for USB transceiver HID0 5 I HID key state input (mute), active-high (2) HID1 6 I HID key state input (volume up), active-high (2) HID2 7 I HID key state input (volume down), active-high (2) SEL0 8 I Must be set to high (3) SEL1 9 I Must be set to high (3) SSPND 28 O Suspend flag, active-low (Low: suspend, High: operational) TEST0 24 I Test pin, must be connected to GND TEST1 25 O Test pin, must be left open VBUS 3 - Connect to USB power (VBUS) VCCCI 10 - Internal analog power supply for codec (4) VCCP1I 17 - Internal analog power supply for PLL (4) VCCP2I 19 - Internal analog power supply for PLL (4) VCCXI 23 - Internal analog power supply for oscillator (4) VCOM 14 - Common for ADC/DAC (VCCCI/2) (4) VDDI 27 - Internal digital power supply (4) VINL 12 I ADC analog input for L-channel VINR 13 I ADC analog input for R-channel VOUTL 16 O DAC analog output for L-channel VOUTR 15 O DAC analog output for R-channel XTI 21 I Crystal oscillator input XTO 20 O Crystal oscillator output (1) (2) (3) (4) (5) 6 DESCRIPTION (5) LV-TTL level. 3.3-V CMOS-level input with internal pulldown. This pin informs the PC of serviceable control signals such as mute, volume up, or volume down, which have no connection with the internal DAC or ADC directly. See the Interface #3 and End-Points sections. TTL Schmitt trigger, 5-V tolerant. Connect a decoupling capacitor to GND. 3.3-V CMOS-level input. Submit Documentation Feedback Copyright (c) 2008, Texas Instruments Incorporated Product Folder Link(s): PCM2900B PCM2902B Not Recommended For New Designs PCM2900B PCM2902B www.ti.com ........................................................................................................................................................................................... SLES229 - DECEMBER 2008 PCM2902B PIN ASSIGNMENTS DB PACKAGE SSOP-28 (TOP VIEW) D+ D- VBUS DGNDU HID0 HID1 HID2 SEL0 SEL1 VCCCI AGNDC VINL VINR VCOM 1 2 3 4 5 6 7 8 9 10 11 12 13 14 PCM2902B 28 27 26 25 24 23 22 21 20 19 18 17 16 15 SSPND VDDI DGND DOUT DIN VCCXI AGNDX XTI XTO VCCP2I AGNDP VCCP1I VOUTL VOUTR Table 2. PCM2902B TERMINAL FUNCTIONS TERMINAL NAME NO. I/O AGNDC 11 - Analog ground for codec AGNDP 18 - Analog ground for PLL AGNDX 22 - Analog ground for oscillator D- 2 I/O USB differential input/output minus (1) D+ 1 I/O USB differential input/output plus (1) DGND 26 - Digital ground DGNDU 4 - Digital ground for USB transceiver DIN 24 I S/PDIF input (2) DOUT 25 O S/PDIF output HID0 5 I HID key state input (mute), active high (3) HID1 6 I HID key state input (volume up), active high (3) HID2 7 I HID key state input (volume down), active high (3) SEL0 8 I Must be set to high (4) SEL1 9 I Must be set to high (4) SSPND 28 O Suspend flag, active-low (Low: suspend, High: operational) VBUS 3 - Connect to USB power (VBUS) VCCCI 10 - Internal analog power supply for codec (5) VCCP1I 17 - Internal analog power supply for PLL (5) VCCP2I 19 - Internal analog power supply for PLL (5) VCCXI 23 - Internal analog power supply for oscillator (5) VCOM 14 - Common for ADC/DAC (VCCCI/2) (5) VDDI 27 - Internal digital power supply VINL 12 I ADC analog input for L-channel VINR 13 I ADC analog input for R-channel VOUTL 16 O DAC analog output for L-channel VOUTR 15 O DAC analog output for R-channel XTI 21 I Crystal oscillator input (6) XTO 20 O Crystal oscillator output (1) (2) (3) (4) (5) (6) DESCRIPTION LV-TTL level. 3.3-V CMOS-level input with internal pulldown, 5-V tolerant. 3.3-V CMOS-level input with internal pulldown. This pin informs the PC of serviceable control signals such as mute, volume up, or volume down, which have no connection with the internal DAC or ADC directly. See the Interface #3 and End-Points sections. TTL Schmitt trigger, 5-V tolerant. Connect a decoupling capacitor to GND. 3.3-V CMOS-level input. Submit Documentation Feedback Copyright (c) 2008, Texas Instruments Incorporated Product Folder Link(s): PCM2900B PCM2902B 7 Not Recommended For New Designs PCM2900B PCM2902B SLES229 - DECEMBER 2008 ........................................................................................................................................................................................... www.ti.com PCM2900B FUNCTIONAL BLOCK DIAGRAM VCCCI VCCP1I VCCP2I VCCXI VDDI AGNDC AGNDP AGNDX DGND DGNDU 5-V to 3.3-V Voltage Regulator Power Manager TEST0 SSPND TEST1 VBUS VINL ISO-In End-Point USB SIE VINR Analog PLL VCOM Selector Analog PLL XCVR FIFO ADC D+ D- Control End-Point SEL0 SEL1 VOUTL FIFO DAC ISO-Out End-Point VOUTR HID End-Point HID0 HID1 HID2 USB Protocol Controller 96 MHz PLL (8) XTI 12 MHz Tracker (SpAct) XTO B0238-01 8 Submit Documentation Feedback Copyright (c) 2008, Texas Instruments Incorporated Product Folder Link(s): PCM2900B PCM2902B Not Recommended For New Designs PCM2900B PCM2902B www.ti.com ........................................................................................................................................................................................... SLES229 - DECEMBER 2008 PCM2902B FUNCTIONAL BLOCK DIAGRAM VCCCI VCCP1I VCCP2I VCCXI VDDI AGNDC AGNDP AGNDX DGND DGNDU 5-V to 3.3-V Voltage Regulator Lock DIN Power Manager SSPND S/PDIF Decoder VBUS VINL ISO-In End-Point USB SIE VINR Analog PLL VCOM Selector Analog PLL XCVR FIFO ADC D+ D- Control End-Point SEL0 SEL1 VOUTL FIFO DAC ISO-Out End-Point VOUTR DOUT HID0 HID1 HID2 HID End-Point S/PDIF Encoder USB Protocol Controller 96 MHz PLL (8) XTI 12 MHz Tracker (SpAct) XTO B0239-01 Submit Documentation Feedback Copyright (c) 2008, Texas Instruments Incorporated Product Folder Link(s): PCM2900B PCM2902B 9 Not Recommended For New Designs PCM2900B PCM2902B SLES229 - DECEMBER 2008 ........................................................................................................................................................................................... www.ti.com PCM2900B/2902B DIAGRAM OF ANALOG FRONT-END (RIGHT CHANNEL) 4.7 mF + VINR 30 kW - 13 - (+) + + (-) Delta-Sigma Modulator VCOM 14 + (VCCCI/2) 10 mF Reference S0011-06 10 Submit Documentation Feedback Copyright (c) 2008, Texas Instruments Incorporated Product Folder Link(s): PCM2900B PCM2902B Not Recommended For New Designs PCM2900B PCM2902B www.ti.com ........................................................................................................................................................................................... SLES229 - DECEMBER 2008 TYPICAL CHARACTERISTICS: ADC All specifications at TA = +25C, VBUS = 5 V, fS = 44.1 kHz, fin = 1 kHz, 16-bit data, using REG 103xA-A, unless otherwise noted. TOTAL HARMONIC DISTORTION + NOISE at -1 dB vs FREE-AIR TEMPERATURE DYNAMIC RANGE and SNR vs FREE-AIR TEMPERATURE 95 0.009 Dynamic Range and SNR - dB THD+N - Total Harmonic Distortion + Noise - % 0.010 0.008 0.007 0.006 0.005 SNR 85 80 0.004 0.003 -50 -25 0 25 50 75 75 -50 100 TA - Free-Air Temperature - C -25 0 25 50 75 TA - Free-Air Temperature - C G001 Figure 1. Figure 2. TOTAL HARMONIC DISTORTION + NOISE at -1 dB vs SUPPLY VOLTAGE DYNAMIC RANGE and SNR vs SUPPLY VOLTAGE 0.010 100 G002 95 0.009 Dynamic Range and SNR - dB THD+N - Total Harmonic Distortion + Noise - % Dynamic Range 90 0.008 0.007 0.006 0.005 Dynamic Range 90 SNR 85 80 0.004 0.003 4.0 4.5 5.0 VBUS - Supply Voltage - V 5.5 75 4.0 G003 Figure 3. 4.5 5.0 VBUS - Supply Voltage - V 5.5 G004 Figure 4. Submit Documentation Feedback Copyright (c) 2008, Texas Instruments Incorporated Product Folder Link(s): PCM2900B PCM2902B 11 Not Recommended For New Designs PCM2900B PCM2902B SLES229 - DECEMBER 2008 ........................................................................................................................................................................................... www.ti.com TYPICAL CHARACTERISTICS: ADC (continued) All specifications at TA = +25C, VBUS = 5 V, fS = 44.1 kHz, fin = 1 kHz, 16-bit data, using REG 103xA-A, unless otherwise noted. TOTAL HARMONIC DISTORTION + NOISE at -1 dB vs SAMPLING FREQUENCY DYNAMIC RANGE AND SNR vs SAMPLING FREQUENCY 95 0.09 0.009 Dynamic Range and SNR - dB THD+N - Total Harmonic Distortion + Noise - % 0.10 0.010 0.08 0.008 0.07 0.007 0.06 0.006 0.05 0.005 Dynamic Range 90 SNR 85 80 0.04 0.004 75 0.03 0.003 30 35 40 45 30 50 35 40 45 50 fS - Sampling Frequency - kHz fS - Sampling Frequency - kHz G006 G005 Figure 5. Figure 6. TYPICAL CHARACTERISTICS: DAC All specifications at TA = +25C, VBUS = 5 V, fS = 44.1 kHz, fin = 1 kHz, 16-bit data, using REG 103xA-A, unless otherwise noted. TOTAL HARMONIC DISTORTION + NOISE at 0 dB vs FREE-AIR TEMPERATURE DYNAMIC RANGE AND SNR vs FREE-AIR TEMPERATURE 98 97 0.007 Dynamic Range and SNR - dB THD+N - Total Harmonic Distortion + Noise - % 0.008 0.006 0.005 0.004 SNR 96 95 Dynamic Range 94 93 92 91 0.003 -50 -25 0 25 50 TA - Free-Air Temperature - C 75 100 G007 90 -50 -25 Figure 7. 12 0 25 50 TA - Free-Air Temperature - C 75 100 G008 Figure 8. Submit Documentation Feedback Copyright (c) 2008, Texas Instruments Incorporated Product Folder Link(s): PCM2900B PCM2902B Not Recommended For New Designs PCM2900B PCM2902B www.ti.com ........................................................................................................................................................................................... SLES229 - DECEMBER 2008 TYPICAL CHARACTERISTICS: DAC (continued) All specifications at TA = +25C, VBUS = 5 V, fS = 44.1 kHz, fin = 1 kHz, 16-bit data, using REG 103xA-A, unless otherwise noted. TOTAL HARMONIC DISTORTION + NOISE at 0 dB vs SUPPLY VOLTAGE DYNAMIC RANGE AND SNR vs SUPPLY VOLTAGE 98 97 0.007 Dynamic Range and SNR - dB THD+N - Total Harmonic Distortion + Noise - % 0.008 0.006 0.005 0.004 95 Dynamic Range 94 93 92 91 0.003 4.0 4.5 5.0 90 4.0 5.5 VBUS - Supply Voltage - V 4.5 5.0 5.5 VBUS - Supply Voltage - V G009 Figure 9. Figure 10. TOTAL HARMONIC DISTORTION + NOISE at 0 dB vs SAMPLING FREQUENCY DYNAMIC RANGE AND SNR vs SAMPLING FREQUENCY 0.008 G010 98 97 0.007 Dynamic Range and SNR - dB THD+N - Total Harmonic Distortion + Noise - % SNR 96 0.006 0.005 0.004 SNR 96 95 94 93 Dynamic Range 92 91 90 0.003 30 35 40 45 fS - Sampling Frequency - kHz 30 50 G011 35 40 45 fS - Sampling Frequency - kHz Figure 11. 50 G012 Figure 12. Submit Documentation Feedback Copyright (c) 2008, Texas Instruments Incorporated Product Folder Link(s): PCM2900B PCM2902B 13 Not Recommended For New Designs PCM2900B PCM2902B SLES229 - DECEMBER 2008 ........................................................................................................................................................................................... www.ti.com TYPICAL CHARACTERISTICS: SUPPLY CURRENT All specifications at TA = +25C, VBUS = 5 V, fS = 44.1 kHz, fin = 1 kHz, 16-bit data, using REG 103xA-A, unless otherwise noted. 60 0.28 Operational 50 0.26 Suspend 40 0.24 0.22 30 20 4.00 4.25 4.50 4.75 5.00 5.25 ICC - Suspend Supply Current - mA ICC - Operational Supply Current - mA OPERATIONAL AND SUSPEND SUPPLY CURRENT vs SUPPLY VOLTAGE 70 0.30 0.20 5.50 VBUS - Supply Voltage - V G013 Figure 13. OPERATIONAL SUPPLY CURRENT vs SAMPLING FREQUENCY SUSPEND SUPPLY CURRENT vs FREE-AIR TEMPERATURE 0.40 ICC - Suspend Supply Current - mA ICC - Operational Supply Current - mA 70 60 50 ADC and DAC 40 30 20 30 35 40 45 fS - Sampling Frequency - kHz 50 G014 0.35 0.30 USB Spec Limit for Device (0.3 mA) 0.25 0.20 0.15 0.10 -40 0 -20 Figure 14. 14 20 40 60 TA - Free-Air Temperature - C 80 100 G015 Figure 15. Submit Documentation Feedback Copyright (c) 2008, Texas Instruments Incorporated Product Folder Link(s): PCM2900B PCM2902B Not Recommended For New Designs PCM2900B PCM2902B www.ti.com ........................................................................................................................................................................................... SLES229 - DECEMBER 2008 TYPICAL CHARACTERISTICS: ADC DIGITAL DECIMATION FILTER FREQUENCY RESPONSE All specifications at TA = +25C, VBUS = 5 V, fS = 44.1 kHz, fin = 1 kHz, 16-bit data, unless otherwise noted. OVERALL CHARACTERISTICS STOP-BAND ATTENUATION 0 0 -10 -20 -20 -40 Amplitude - dB Amplitude - dB -30 -60 -80 -100 -40 -50 -60 -70 -120 -80 -140 -90 -100 0.0 -160 0 8 16 24 0.4 0.6 0.8 G016 Figure 17. PASSBAND RIPPLE TRANSITION-BAND RESPONSE 0 0.0 -4 -0.2 -0.4 1.0 G017 Figure 16. 0.2 -8 -12 -16 -0.6 -0.8 0.0 0.2 Frequency [y fS] Amplitude - dB Amplitude - dB Frequency [y fS] 32 0.1 0.2 0.3 Frequency [y fS] 0.4 0.5 -20 0.46 0.48 G018 Figure 18. 0.50 0.52 Frequency [y fS] 0.54 G019 Figure 19. Submit Documentation Feedback Copyright (c) 2008, Texas Instruments Incorporated Product Folder Link(s): PCM2900B PCM2902B 15 Not Recommended For New Designs PCM2900B PCM2902B SLES229 - DECEMBER 2008 ........................................................................................................................................................................................... www.ti.com TYPICAL CHARACTERISTICS: ADC DIGITAL HIGH-PASS FILTER FREQUENCY RESPONSE All specifications at TA = +25C, VBUS = 5 V, fS = 44.1 kHz, fin = 1 kHz, 16-bit data, unless otherwise noted. STOP-BAND CHARACTERISTICS PASSBAND CHARACTERISTICS 0 0.0 -10 -20 -0.2 Amplitude - dB Amplitude - dB -30 -40 -50 -60 -0.4 -0.6 -70 -0.8 -80 -90 -100 0.0 -1.0 0.1 0.2 0.3 Frequency [y fS/1000] 0 0.4 1 2 3 Frequency [y fS/1000] G020 Figure 20. 4 G021 Figure 21. TYPICAL CHARACTERISTICS: ADC ANALOG ANTIALIASING FILTER FREQUENCY RESPONSE All specifications at TA = +25C, VBUS = 5 V, fS = 44.1 kHz, fin = 1 kHz, 16-bit data, unless otherwise noted. PASSBAND CHARACTERISTICS 0.0 -10 -0.2 Amplitude - dB Amplitude - dB STOP-BAND CHARACTERISTICS 0 -20 -30 -0.4 -0.6 -0.8 -40 -50 1 10 100 1k 10k -1.0 0.01 0.1 1 100 G023 G022 Figure 22. 16 10 f - Frequency - kHz f - Frequency - kHz Figure 23. Submit Documentation Feedback Copyright (c) 2008, Texas Instruments Incorporated Product Folder Link(s): PCM2900B PCM2902B Not Recommended For New Designs PCM2900B PCM2902B www.ti.com ........................................................................................................................................................................................... SLES229 - DECEMBER 2008 TYPICAL CHARACTERISTICS: DAC DIGITAL INTERPOLATION FILTER FREQUENCY RESPONSE All specifications at TA = +25C, VBUS = 5 V, fS = 44.1 kHz, fin = 1 kHz, 16-bit data, unless otherwise noted. STOP-BAND ATTENUATION PASSBAND RIPPLE 0 0.2 -10 -20 0.0 Amplitude - dB Amplitude - dB -30 -40 -50 -60 -0.2 -0.4 -70 -80 -0.6 -90 -100 0 1 2 3 -0.8 0.0 4 Frequency [y fS] 0.1 0.2 0.3 0.4 Frequency [y fS] G024 Figure 24. 0.5 G025 Figure 25. TRANSITION-BAND RESPONSE 0 -2 -4 Amplitude - dB -6 -8 -10 -12 -14 -16 -18 -20 0.46 0.47 0.48 0.49 0.50 0.51 0.52 0.53 0.54 Frequency [y fS] G026 Figure 26. Submit Documentation Feedback Copyright (c) 2008, Texas Instruments Incorporated Product Folder Link(s): PCM2900B PCM2902B 17 Not Recommended For New Designs PCM2900B PCM2902B SLES229 - DECEMBER 2008 ........................................................................................................................................................................................... www.ti.com TYPICAL CHARACTERISTICS: DAC ANALOG FIR FILTER FREQUENCY RESPONSE All specifications at TA = +25C, VBUS = 5 V, fS = 44.1 kHz, fin = 1 kHz, 16-bit data, unless otherwise noted. PASSBAND CHARACTERISTICS 0.2 -10 0.0 Amplitude - dB Amplitude - dB STOP-BAND CHARACTERISTICS 0 -20 -30 -40 -0.2 -0.4 -0.6 -50 0 8 16 24 Frequency [y fS] -0.8 0.0 32 0.1 0.2 0.3 0.4 Frequency [y fS] G027 Figure 27. 0.5 G028 Figure 28. TYPICAL CHARACTERISTICS: DAC ANALOG LOW-PASS FILTER FREQUENCY RESPONSE All specifications at TA = +25C, VBUS = 5 V, fS = 44.1 kHz, fin = 1 kHz, 16-bit data, unless otherwise noted. PASSBAND CHARACTERISTICS 0.0 -10 -0.2 Amplitude - dB Amplitude - dB STOP-BAND CHARACTERISTICS 0 -20 -30 -0.4 -0.6 -0.8 -40 -50 1 10 100 1k 10k -1.0 0.01 0.1 1 100 G030 G029 Figure 29. 18 10 f - Frequency - kHz f - Frequency - kHz Figure 30. Submit Documentation Feedback Copyright (c) 2008, Texas Instruments Incorporated Product Folder Link(s): PCM2900B PCM2902B Not Recommended For New Designs PCM2900B PCM2902B www.ti.com ........................................................................................................................................................................................... SLES229 - DECEMBER 2008 DETAILED DESCRIPTION USB INTERFACE Control data and audio data are transferred to the PCM2900B/2902B via D+ (pin 1) and D- (pin 2). All data to/from the PCM2900B/2902B are transferred at full speed. The device descriptor contains the information described in Table 3. The device descriptor can be modified on request; contact a Texas Instruments representative for details. Table 3. Device Description USB revision 2.0 compliant Device class 0x00 (device-defined interface level) Device subclass 0x00 (not specified) Device protocol 0x00 (not specified) Max packet size for end-point 0 8 bytes Vendor ID 0x08BB (default value, can be modified) Product ID 0x29B0 / 0x29B2 (default value, can be modified) Device release number 1.0 (0x0100) Number of configurations 1 Vendor strings String #1 (see Table 5) Product strings String #2 (see Table 5) Serial number Not supported The configuration descriptor contains the information described in Table 4. The configuration descriptor can be modified on request; contact a Texas Instruments representative for details. Table 4. Configuration Descriptor Interface Four interfaces Power attribute 0x80 (Bus powered, no remote wakeup) Max power 0x32 (100 mA. Default value, can be modified) The string descriptor contains the information described in Table 5. The string descriptor can be modified on request; contact a Texas Instruments representative for details. Table 5. String Descriptor #0 0x0409 #1 Burr-Brown from TI (default value, can be modified) #2 USB Audio CODEC (default value, can be modified) Submit Documentation Feedback Copyright (c) 2008, Texas Instruments Incorporated Product Folder Link(s): PCM2900B PCM2902B 19 Not Recommended For New Designs PCM2900B PCM2902B SLES229 - DECEMBER 2008 ........................................................................................................................................................................................... www.ti.com DEVICE CONFIGURATION Figure 31 illustrates the USB audio function topology. The PCM2900B/2902B has four interfaces. Each interface consists of alternative settings. End-Point #0 Default End-Point FU Analog Out End-Point #2 (IF #1) IT TID1 OT TID2 Audio Streaming Interface UID3 Analog In End-Point #4 (IF #2) IT TID4 OT TID5 Audio Streaming Interface Standard Audio Control Interface (IF #0) End-Point #5 (IF #3) HID Interface PCM2900B/2902B M0024-03 Figure 31. USB Audio Function Topology 20 Submit Documentation Feedback Copyright (c) 2008, Texas Instruments Incorporated Product Folder Link(s): PCM2900B PCM2902B Not Recommended For New Designs PCM2900B PCM2902B www.ti.com ........................................................................................................................................................................................... SLES229 - DECEMBER 2008 Interface #0 Interface #0 is defined as the control interface. Alternative setting #0 is the only possible setting for interface #0. Alternative setting #0 describes the standard audio control interface. The audio control interface consists of a single terminal. The PCM2900B/2902B has the following five terminals: * Input terminal (IT #1) for isochronous-out stream * Output terminal (OT #2) for audio analog output * Feature unit (FU #3) for DAC digital attenuator * Input terminal (IT #4) for audio analog input * Output terminal (OT #5) for isochronous-in stream Input terminal #1 is defined as a USB stream (terminal type 0x0101). Input terminal #1 can accept two-channel audio streams consisting of left and right channels. Output terminal #2 is defined as a speaker (terminal type 0x0301). Input terminal #4 is defined as a microphone (terminal type 0x0201). Output terminal #5 is defined as a USB stream (terminal type 0x0101). Output terminal #5 can generate two-channel audio streams composed of left and right channel data. Feature unit #3 supports the following sound control features: * Volume control * Mute control The built-in digital volume controller can be manipulated by an audio class specific request from 0 dB to -64 dB in 1-dB steps. Changes are made by incrementing or decrementing by one step (1 dB) for every 1/fS time interval until the volume level has reached the requested value. Each channel can be set for different values. The master volume control is not supported. A request to the master volume is stalled and ignored. The built-in digital mute controller can be manipulated by an audio class specific request. A master mute control request is acceptable. A request to an individual channel is stalled and ignored. Interface #1 Interface #1 is the audio streaming data-out interface. Interface #1 has five alternative settings listed in Table 6. Alternative setting #0 is the zero bandwidth setting. All other alternative settings are operational settings. Table 6. Interface #1 Alternative Settings ALTERNATIVE SETTING DATA FORMAT 00 TRANSFER MODE SAMPLING RATE (kHz) 32, 44.1, 48 Zero Bandwidth 01 16-bit Stereo Twos complement (PCM) Adaptive 02 16-bit Mono Twos complement (PCM) Adaptive 32, 44.1, 48 03 8-bit Stereo Twos complement (PCM) Adaptive 32, 44.1, 48 04 8-bit Mono Twos complement (PCM) Adaptive 32, 44.1, 48 Submit Documentation Feedback Copyright (c) 2008, Texas Instruments Incorporated Product Folder Link(s): PCM2900B PCM2902B 21 Not Recommended For New Designs PCM2900B PCM2902B SLES229 - DECEMBER 2008 ........................................................................................................................................................................................... www.ti.com Interface #2 Interface #2 is the audio streaming data-in interface. Interface #2 has the 19 alternative settings listed in Table 7. Alternative setting #0 is the zero bandwidth setting. All other alternative settings are operational settings. Table 7. Interface #2 Alternative Settings ALTERNATIVE SETTING TRANSFER MODE DATA FORMAT 00 SAMPLING RATE (kHz) Zero Bandwidth 01 16-bit Stereo Twos complement (PCM) Asynchronous 48 02 16-bit Mono Twos complement (PCM) Asynchronous 48 03 16-bit Stereo Twos complement (PCM) Asynchronous 44.1 04 16-bit Mono Twos complement (PCM) Asynchronous 44.1 05 16-bit Stereo Twos complement (PCM) Asynchronous 32 06 16-bit Mono Twos complement (PCM) Asynchronous 32 07 16-bit Stereo Twos complement (PCM) Asynchronous 22.05 08 16-bit Mono Twos complement (PCM) Asynchronous 22.05 09 16-bit Stereo Twos complement (PCM) Asynchronous 16 0A 16-bit Mono Twos complement (PCM) Asynchronous 16 0B 8-bit Stereo Twos complement (PCM) Asynchronous 16 0C 8-bit Mono Twos complement (PCM) Asynchronous 16 0D 8-bit Stereo Twos complement (PCM) Asynchronous 8 0E 8-bit Mono Twos complement (PCM) Asynchronous 8 0F 16-bit Stereo Twos complement (PCM) Synchronous 11.025 10 16-bit Mono Twos complement (PCM) Synchronous 11.025 11 8-bit Stereo Twos complement (PCM) Synchronous 11.025 12 8-bit Mono Twos complement (PCM) Synchronous 11.025 Interface #3 Interface #3 is the interrupt data-in interface. Alternative setting #0 is the only possible setting for interface #3. Interface #3 consists of the HID consumer control device and reports the status of these three key parameters: * Mute (0xE209) * Volume up (0xE909) * Volume down (0xEA09) End-Points The PCM2900B/2902B has the following four end-points: * Control end-point (EP #0) * Isochronous-out audio data stream end-point (EP #2) * Isochronous-in audio data stream end-point (EP #4) * HID end-point (EP #5) The control end-point is a default end-point. The control end-point is used to control all functions of the PCM2900B/2902B by a standard USB request and an USB audio class specific request from the host. The isochronous-out audio data stream end-point is an audio sink end-point, which receives the PCM audio data. The isochronous-out audio data stream end-point accepts the adaptive transfer mode. The isochronous-in audio data stream end-point is an audio source end-point, which transmits the PCM audio data. The isochronous-in audio data stream end-point uses asynchronous transfer mode. The HID end-point is an interrupt-in end-point. HID end-point reports HID0, HID1, and HID2 pin status every 32 ms. The human interface device (HID) pins are defined as consumer control devices. The HID function is designed as an independent end-point from both isochronous-in and -out end-points. Therefore, the result obtained from the HID operation depends on the host software. Typically, the HID function is used as the primary audio-out device. 22 Submit Documentation Feedback Copyright (c) 2008, Texas Instruments Incorporated Product Folder Link(s): PCM2900B PCM2902B Not Recommended For New Designs PCM2900B PCM2902B www.ti.com ........................................................................................................................................................................................... SLES229 - DECEMBER 2008 Clock and Reset The PCM2900B/2902B requires a 12-MHz (500 ppm) clock for the USB and audio functions, which can be generated by a built-in crystal oscillator with a 12-MHz crystal resonator. The 12-MHz crystal resonator must be connected to XTI (pin 21) and XTO (pin 20) with one high (1-M) resistor and two small capacitors, the capacitance of which depends on the load capacitance of the crystal resonator. The external clock can be supplied from XTI (pin 21). If the external clock is supplied, XTO (pin 20) must be left open. Because there is no clock-disabling signal, it is not recommended to use the external clock supply. SSPND (pin 28) is unable to use clock disabling. The PCM2900B/2902B has an internal power-on reset circuit, which triggers automatically when VBUS (pin 3) exceeds 2.5 V typical (2.7 V to 2.2 V). Approximately 700 s is required until internal reset release. Digital Audio Interface (PCM2902B) The PCM2902B employs both S/PDIF input and output. Isochronous-out data from the host are encoded to the S/PDIF output and the DAC analog output. Input data are selected as either S/PDIF or ADC analog input. When the device detects an S/PDIF input and successfully locks the received data, the isochronous-in transfer data source is automatically selected from S/PDIF itself; otherwise, the data source is selected to ADC analog input. This feature is a customer option. It is the responsibility of the user to implement this feature. Supported Input/Output Data (PCM2902B) The following data formats are accepted by the S/PDIF input and output. All other data formats are unable to use S/PDIF. * 48-kHz 16-bit stereo * 44.1-kHz 16-bit stereo * 32-kHz 16-bit stereo Any mismatch of the sampling rate between the input S/PDIF signal and the host command is not acceptable. Any mismatch of the data format between the input S/PDIF signal and the host command may cause unexpected results, with the following exceptions: * Recording in monaural format from stereo data input at the same data rate * Recording in 8-bit format from 16-bit data input at the same data rate A combination of these two conditions is not acceptable. For playback, all possible data rate sources are converted to 16-bit stereo format at the same source data rate. Channel Status Information (PCM2902B) The channel status information is fixed as consumer application, PCM mode, copyright, and digital/digital converter. All other bits are fixed as 0's except for the sample frequency, which is set automatically according to the data received through the USB. Copyright Management (PCM2902B) Isochronous-in data are affected by the serial copy management system (SCMS). When receiving digital audio data that are indicated as original data in the control bit, input digital audio data transfer to the host. If the data are indicated as first generation or higher, the transferred data are routed to the analog input. Digital audio data output is always encoded as original with SCMS control. Submit Documentation Feedback Copyright (c) 2008, Texas Instruments Incorporated Product Folder Link(s): PCM2900B PCM2902B 23 Not Recommended For New Designs PCM2900B PCM2902B SLES229 - DECEMBER 2008 ........................................................................................................................................................................................... www.ti.com INTERFACE SEQUENCE Power On, Attach, and Playback Sequence The PCM2900B/2902B is ready for setup when the reset sequence has finished and the USB bus is attached. After connection has been established by setup, the PCM2900B/2902B is ready to accept USB audio data. While waiting, the audio data (idle state) and analog output are set to bipolar zero (BPZ). When receiving the audio data, the PCM2900B/2902B stores the first audio packet, which contains 1-ms audio data, into the internal storage buffer. The PCM2900B/2902B starts playing the audio data when detecting the next start of frame (SOF) packet, as illustrated in Figure 32. 5 V (Typ) VBUS (Pin 3) 2.5 V (Typ) 0V Bus Reset st 1 Audio Data Set Configuration 2 nd Audio Data Bus Idle D+/D- SOF SOF SOF SSPND BPZ VOUTL VOUTR 700 ms Device Setup Internal Reset Ready for Setup 1 ms Ready for Playback T0055-02 Figure 32. Initial Sequence Play, Stop, and Detach Sequence When the host finishes or aborts playback, the PCM2900B/2902B stops playing after the last audio data have played, as shown in Figure 33. VBUS (Pin 3) Audio Data Audio Data Last Audio Data D+/D- SOF SOF SOF SOF SOF VOUTL VOUTR Detach 1 ms T0056-02 Figure 33. Play, Stop, and Detach Sequence 24 Submit Documentation Feedback Copyright (c) 2008, Texas Instruments Incorporated Product Folder Link(s): PCM2900B PCM2902B Not Recommended For New Designs PCM2900B PCM2902B www.ti.com ........................................................................................................................................................................................... SLES229 - DECEMBER 2008 Record Sequence The PCM2900B/2902B starts the audio capture into the internal memory after receiving the SET_INTERFACE command, as shown in Figure 34. Audio Data SET_INTERFACE IN Token Audio Data Audio Data IN Token IN Token D+/D- SOF SOF SOF SOF SOF VINL VINR 1 ms T0259-01 Figure 34. Record Sequence Suspend and Resume Sequence The PCM2900B/2902B enters the suspend state after it sees a constant idle state on the USB bus (approximately 5 ms), as shown in Figure 35. While the PCM2900B/2902B enters the suspend state, SSPND flag (pin 28) is asserted. The PCM2900B/2902B wakes up immediately upon detecting a non-idle state on the USB bus. Idle D+/D- SSPND Active 5 ms Suspend Active T0057-02 Figure 35. Suspend and Resume Sequence Submit Documentation Feedback Copyright (c) 2008, Texas Instruments Incorporated Product Folder Link(s): PCM2900B PCM2902B 25 Not Recommended For New Designs PCM2900B PCM2902B SLES229 - DECEMBER 2008 ........................................................................................................................................................................................... www.ti.com APPLICATION INFORMATION PCM2900B TYPICAL CIRCUIT CONNECTION 1 Figure 36 illustrates a typical circuit connection for a high-performance application. The circuit illustrated is for information only. The entire board design should be considered to meet the USB specification as a USB-compliant product. 1.5 kW 3 1.5 kW PCM2900B 22 W D+ 22 W D- 1 D+ SSPND 28 2 D- VDDI 27 3 VBUS DGND 26 4 DGNDU TEST1 25 5 HID0 TEST0 24 6 HID1 VCCXI 23 7 HID2 AGNDX 22 8 SEL0 XTI 21 9 SEL1 XTO 20 10 VCCCI VCCP2I 19 AGNDP 18 2.2 W VBUS 1 mF GND IC1 IN OUT GND ADJ EN 5 3 4 1 2 C13 D1 C4 + 27 kW C6 3.6 V- 3.85 V + 12 MHz C7 11 AGNDC 12 VINL VCCP1I 17 13 VINR VOUTL 16 14 VCOM VOUTR 15 13 kW + C5 1 MW C1 C9 C10 C3 C2 + MUTE/ Power Down C8 + C11 + C12 LPF, Amp LPF, Amp S0264-03 NOTE: C1, C2: 10 F C3, C4, C7, C8, C13: 1 F (These capacitors must be less than 2 F.) C5, C6: 10 pF to 33 pF (depending on crystal resonator) C9, C10, C11, C12: The capacitance may vary depending on design. IC1: REG103xA-A (TI) or equivalent. Analog performance may vary depending on IC1. D1: Schottky barrier diode (VF 350 mV at 10 mA, IR 2 A at 4 V) Figure 36. Bus-Powered Configuration for High-Performance Application 26 Submit Documentation Feedback Copyright (c) 2008, Texas Instruments Incorporated Product Folder Link(s): PCM2900B PCM2902B Not Recommended For New Designs PCM2900B PCM2902B www.ti.com ........................................................................................................................................................................................... SLES229 - DECEMBER 2008 PCM2902B TYPICAL CIRCUIT CONNECTION 1 Figure 37 illustrates a typical circuit connection for a high-performance application. The circuit illustrated is for information only. The entire board design should be considered to meet the USB specification as a USB-compliant product. 1.5 kW 3 1.5 kW PCM2902B 22 W D+ 22 W D- 1 D+ SSPND 28 2 D- VDDI 27 3 VBUS DGND 26 4 DGNDU DOUT 25 5 HID0 DIN 24 6 HID1 VCCXI 23 7 HID2 AGNDX 22 8 SEL0 XTI 21 9 SEL1 XTO 20 10 VCCCI VCCP2I 19 AGNDP 18 2.2 W VBUS 1 mF GND IC1 IN OUT GND ADJ EN 5 3 4 1 2 C13 D1 C4 + 27 kW C6 3.6 V- 3.85 V + 12 MHz 11 AGNDC 12 VINL VCCP1I 17 13 VINR VOUTL 16 14 VCOM VOUTR 15 C2 + MUTE/ Power Down C7 13 kW + C5 1 MW C1 C9 C10 C3 C8 + C11 + C12 LPF, Amp LPF, Amp S0264-04 NOTE: C1, C2: 10 F C3, C4, C7, C8, C13: 1 F (These capacitors must be less than 2 F.) C5, C6: 10 pF to 33 pF (depending on crystal resonator) C9, C10, C11, C12: The capacitance may vary depending on design. IC1: REG103xA-A (TI) or equivalent. Analog performance may vary depending on IC1. D1: Schottky barrier diode (VF 350 mV at 10 mA, IR 2 A at 4 V) Figure 37. Bus-Powered Configuration for High-Performance Application Submit Documentation Feedback Copyright (c) 2008, Texas Instruments Incorporated Product Folder Link(s): PCM2900B PCM2902B 27 Not Recommended For New Designs PCM2900B PCM2902B SLES229 - DECEMBER 2008 ........................................................................................................................................................................................... www.ti.com PCM2900B TYPICAL CIRCUIT CONNECTION 2 Figure 38 illustrates a typical circuit connection for a simple application. The circuit illustrated is for information only. The entire board design should be considered to meet the USB specification as a USB-compliant product. 1.5 kW 4 PCM2900B 22 W D+ 22 W D- 1 D+ SSPND 28 2 D- VDDI 27 3 VBUS DGND 26 4 DGNDU TEST1 25 5 HID0 TEST0 24 6 HID1 VCCXI 23 7 HID2 AGNDX 22 8 SEL0 XTI 21 9 SEL1 XTO 20 10 VCCCI VCCP2I 19 11 AGNDC AGNDP 18 12 VINL VCCP1I 17 13 VINR VOUTL 16 14 VCOM VOUTR 15 2.2 W VBUS 1 mF GND C3 C4 C5 1 MW C6 12 MHz C1 + C9 C10 + + C2 + C7 MUTE/ Power Down C8 + C11 + C12 LPF, Amp LPF, Amp S0265-03 NOTE: C1, C2: 10 F C3, C4, C7, C8: 1 F (These capacitors must be less than 2 F.) C5, C6: 10 pF to 33 pF (depending on crystal resonator) C9, C10, C11, C12: The capacitance may vary depending on design. In this case, the analog performance of the ADC may be degraded. Figure 38. Bus-Powered Configuration 28 Submit Documentation Feedback Copyright (c) 2008, Texas Instruments Incorporated Product Folder Link(s): PCM2900B PCM2902B Not Recommended For New Designs PCM2900B PCM2902B www.ti.com ........................................................................................................................................................................................... SLES229 - DECEMBER 2008 PCM2902B TYPICAL CIRCUIT CONNECTION 2 Figure 39 illustrates a typical circuit connection for a simple application. The circuit illustrated is for information only. The emtire board design should be considered to meet the USB specification as a USB-compliant product. 1.5 kW 4 PCM2902B 22 W D+ 22 W D- 1 D+ SSPND 28 2 D- VDDI 27 3 VBUS DGND 26 4 DGNDU DOUT 25 5 HID0 DIN 24 6 HID1 VCCXI 23 7 HID2 AGNDX 22 8 SEL0 XTI 21 9 SEL1 XTO 20 10 VCCCI VCCP2I 19 11 AGNDC AGNDP 18 12 VINL VCCP1I 17 13 VINR VOUTL 16 2.2 W VBUS 1 mF GND C3 C4 C5 1 MW C6 12 MHz C1 + C9 C10 + + C2 + 14 VCOM VOUTR 15 C7 MUTE/ Power Down C8 + C11 + C12 LPF, Amp LPF, Amp S0265-04 NOTE: C1, C2: 10 F C3, C4, C7, C8: 1 F (These capacitors must be less than 2 F.) C5, C6: 10 pF to 33 pF (depending on crystal resonator) C9, C10, C11, C12: The capacitance may vary depending on design. In this case, the analog performance of the ADC may be degraded. Figure 39. Bus-Powered Configuration OPERATING ENVIRONMENT For current information on the PCM2900B/2902B operating environment, see the Updated Operating Environments for PCM270X, PCM290X Applications application report, SLAA374. Submit Documentation Feedback Copyright (c) 2008, Texas Instruments Incorporated Product Folder Link(s): PCM2900B PCM2902B 29 PACKAGE OPTION ADDENDUM www.ti.com 6-Jan-2012 PACKAGING INFORMATION Orderable Device Status (1) Package Type Package Drawing Pins Package Qty Eco Plan (2) Lead/ Ball Finish MSL Peak Temp PCM2900BDB NRND SSOP DB 28 50 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM PCM2900BDBR NRND SSOP DB 28 2000 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM PCM2902BDB NRND SSOP DB 28 50 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM PCM2902BDBR NRND SSOP DB 28 2000 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM (3) Samples (Requires Login) (1) The marketing status values are defined as follows: ACTIVE: Product device recommended for new designs. LIFEBUY: TI has announced that the device will be discontinued, and a lifetime-buy period is in effect. NRND: Not recommended for new designs. Device is in production to support existing customers, but TI does not recommend using this part in a new design. PREVIEW: Device has been announced but is not in production. Samples may or may not be available. OBSOLETE: TI has discontinued the production of the device. (2) Eco Plan - The planned eco-friendly classification: Pb-Free (RoHS), Pb-Free (RoHS Exempt), or Green (RoHS & no Sb/Br) - please check http://www.ti.com/productcontent for the latest availability information and additional product content details. TBD: The Pb-Free/Green conversion plan has not been defined. Pb-Free (RoHS): TI's terms "Lead-Free" or "Pb-Free" mean semiconductor products that are compatible with the current RoHS requirements for all 6 substances, including the requirement that lead not exceed 0.1% by weight in homogeneous materials. Where designed to be soldered at high temperatures, TI Pb-Free products are suitable for use in specified lead-free processes. Pb-Free (RoHS Exempt): This component has a RoHS exemption for either 1) lead-based flip-chip solder bumps used between the die and package, or 2) lead-based die adhesive used between the die and leadframe. The component is otherwise considered Pb-Free (RoHS compatible) as defined above. Green (RoHS & no Sb/Br): TI defines "Green" to mean Pb-Free (RoHS compatible), and free of Bromine (Br) and Antimony (Sb) based flame retardants (Br or Sb do not exceed 0.1% by weight in homogeneous material) (3) MSL, Peak Temp. -- The Moisture Sensitivity Level rating according to the JEDEC industry standard classifications, and peak solder temperature. Important Information and Disclaimer:The information provided on this page represents TI's knowledge and belief as of the date that it is provided. TI bases its knowledge and belief on information provided by third parties, and makes no representation or warranty as to the accuracy of such information. Efforts are underway to better integrate information from third parties. TI has taken and continues to take reasonable steps to provide representative and accurate information but may not have conducted destructive testing or chemical analysis on incoming materials and chemicals. TI and TI suppliers consider certain information to be proprietary, and thus CAS numbers and other limited information may not be available for release. In no event shall TI's liability arising out of such information exceed the total purchase price of the TI part(s) at issue in this document sold by TI to Customer on an annual basis. Addendum-Page 1 PACKAGE MATERIALS INFORMATION www.ti.com 14-Jul-2012 TAPE AND REEL INFORMATION *All dimensions are nominal Device Package Package Pins Type Drawing SPQ Reel Reel A0 Diameter Width (mm) (mm) W1 (mm) B0 (mm) K0 (mm) P1 (mm) W Pin1 (mm) Quadrant PCM2900BDBR SSOP DB 28 2000 330.0 16.4 8.2 10.5 2.5 12.0 16.0 Q1 PCM2902BDBR SSOP DB 28 2000 330.0 16.4 8.2 10.5 2.5 12.0 16.0 Q1 Pack Materials-Page 1 PACKAGE MATERIALS INFORMATION www.ti.com 14-Jul-2012 *All dimensions are nominal Device Package Type Package Drawing Pins SPQ Length (mm) Width (mm) Height (mm) PCM2900BDBR SSOP DB 28 2000 367.0 367.0 38.0 PCM2902BDBR SSOP DB 28 2000 367.0 367.0 38.0 Pack Materials-Page 2 MECHANICAL DATA MSSO002E - JANUARY 1995 - REVISED DECEMBER 2001 DB (R-PDSO-G**) PLASTIC SMALL-OUTLINE 28 PINS SHOWN 0,38 0,22 0,65 28 0,15 M 15 0,25 0,09 8,20 7,40 5,60 5,00 Gage Plane 1 14 0,25 A 0-8 0,95 0,55 Seating Plane 2,00 MAX 0,10 0,05 MIN PINS ** 14 16 20 24 28 30 38 A MAX 6,50 6,50 7,50 8,50 10,50 10,50 12,90 A MIN 5,90 5,90 6,90 7,90 9,90 9,90 12,30 DIM 4040065 /E 12/01 NOTES: A. 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