INTEGRATED CIRCUITS DATA SHEET TDA5736; TDA5737 5 V VHF, hyperband and UHF mixers/oscillators for TV and VCR 3-band tuners Product specification Supersedes data of 1996 Oct 25 File under Integrated Circuits, IC02 1997 Feb 24 Philips Semiconductors Product specification 5 V VHF, hyperband and UHF mixers/oscillators for TV and VCR 3-band tuners TDA5736; TDA5737 FEATURES GENERAL DESCRIPTION * Balanced mixer with a common emitter input for band A (single input) The TDA5736 and TDA5737 are monolithic integrated circuits that perform the mixer/oscillator functions for bands A, B and C in TV and VCR tuners. These low power mixer/oscillators require a power supply of 5 V and are available in a very small package. * 2-pin oscillator for band A * Balanced mixer with a common base input for bands B and C (balanced input) These devices give the designer the capability to design an economical and physically small 3-band tuner. * 3-pin oscillator for band B * 4-pin oscillator for band C They are suitable for European standards, as illustrated in Fig.17, with the following RF bands: 48.25 to 168.25 MHz, 175.25 to 447.25 MHz and 455.25 to 855.25 MHz. With an appropriate tuned circuit, they are also suitable for NTSC all channel tuners (USA and Japan). * Local oscillator buffer output for external prescaler * SAW filter preamplifier with a low output impedance to drive the SAW filter directly * Band gap voltage stabilizer for oscillator stability * Electronic band switch The tuner development time can be drastically reduced by using these devices. * External IF filter between the mixer output and the IF amplifier input. APPLICATIONS * 3-band all channel TV and VCR tuners * Any standard. QUICK REFERENCE DATA SYMBOL PARAMETER CONDITIONS MIN. TYP. MAX. UNIT VP supply voltage - 5.0 - V IP supply current - 50 - mA fRF frequency range RF input; band A; note 1 41 - 171 MHz RF input; band B; note 1 166 - 451 MHz RF input; band C; note 1 446 - 861 MHz band A - 23 - dB band B - 34 - dB band C - 34 - dB Gv NF Vo voltage gain noise figure output voltage level causing 1% cross modulation in channel band A - 7.5 - dB band B - 8 - dB band C - 9 - dB band A - 116 - dBV band B - 115 - dBV band C - 115 - dBV Note 1. The limits are related to the tank circuits used in Fig.17 and the intermediate frequency. Frequency bands may be adjusted by the choice of external components. 1997 Feb 24 2 Philips Semiconductors Product specification 5 V VHF, hyperband and UHF mixers/oscillators for TV and VCR 3-band tuners TDA5736; TDA5737 ORDERING INFORMATION PACKAGE TYPE NUMBER NAME TDA5736T SO24 TDA5736M TDA5737M DESCRIPTION VERSION plastic small outline package; 24 leads; body width 7.5 mm SOT137-1 SSOP24 plastic shrink small outline package; 24 leads; body width 5.3 mm SOT340-1 SSOP24 plastic shrink small outline package; 24 leads; body width 5.3 mm SOT340-1 BLOCK DIAGRAM band A oscillator tuned cicuit band C oscillator tuned cicuit band B oscillator tuned cicuit handbook, full pagewidth IF outputs GND 23 (2) 21 (4) 24 22 20 18 (1) (3) (5) (7) 19 (6) 17 (8) 16 (9) BAND A OSCILLATOR BAND C OSCILLATOR BAND B OSCILLATOR MIXER MIXER MIXER 15 (10) TDA5736T TDA5736M TDA5737M 14 (11) 13 (12) IF AMPLIFIER ELECTRONIC BAND SWITCH LOCAL OSCILLATOR AMPLIFIER BAND A STAGE (24) (23) 1 2 IF filter input (19) 6 band A input BAND C STAGE (21) 4 band C inputs BAND B STAGE (20) 5 (22) 3 (18) 7 RF GND DC STABILIZER (17) 8 band B inputs The numbers in parenthesis represent the TDA5737M. Fig.1 Block diagram. 1997 Feb 24 3 (16) 9 VP (15) 10 (14) 11 local oscillator amplifier outputs (13) 12 MGE971 band switch input Philips Semiconductors Product specification 5 V VHF, hyperband and UHF mixers/oscillators for TV and VCR 3-band tuners TDA5736; TDA5737 PINNING PIN SYMBOL DESCRIPTION TDA5736 TDA5737 IFIN1 1 24 IF filter input 1 IFIN2 2 23 IF filter input 2 RFGND 3 22 ground for RF inputs CIN1 4 21 band C input 1 CIN2 5 20 band C input 2 AIN 6 19 band A input BIN1 7 18 band B input 1 BIN2 8 17 band B input 2 VP 9 16 supply voltage LOOUT1 10 15 local oscillator amplifier output 1 LOOUT2 11 14 local oscillator amplifier output 2 BS 12 13 band switch input IFOUT1 13 12 IF amplifier output 1 IFOUT2 14 11 IF amplifier output 2 GND 15 10 ground (0 V) BOSCOC1 16 9 band B oscillator output collector 1 BOSCOC2 17 8 band B oscillator output collector 2 COSCIB1 18 7 band C oscillator input base 1 BOSCIB 19 6 band B oscillator input base COSCOC1 20 5 band C oscillator output collector 1 AOSCOC 21 4 band A oscillator output collector COSCOC2 22 3 band C oscillator output collector 2 AOSCIB 23 2 band A oscillator input base COSCIB2 24 1 band C oscillator input base 2 1997 Feb 24 4 Philips Semiconductors Product specification 5 V VHF, hyperband and UHF mixers/oscillators for TV and VCR 3-band tuners handbook, halfpage handbook, halfpage IFIN1 1 24 COSCIB2 IFIN2 2 23 AOSCIB RFGND 3 22 COSCOC2 CIN1 4 21 AOSCOC CIN2 5 20 COSCOC1 19 BOSCIB TDA5736M BIN1 7 TDA5736T 18 COSCIB1 AIN 6 COSCIB2 1 24 IFIN1 AOSCIB 2 23 IFIN2 COSCOC2 3 22 RFGND AOSCOC 4 21 CIN1 COSCOC1 5 20 CIN2 BOSCIB 6 19 AIN TDA5737M COSCIB1 7 18 BIN1 BIN2 8 17 BOSCOC2 BOSCOC2 8 17 BIN2 VP 9 16 BOSCOC1 BOSCOC1 9 16 VP LOOUT1 10 15 GND LOOUT2 11 BS 12 GND 10 15 LOOUT1 14 IFOUT2 IFOUT2 11 14 LOOUT2 13 IFOUT1 IFOUT1 12 13 BS MBE383 MGE970 Fig.2 Pin configuration (TDA5736M, TDA5736T). 1997 Feb 24 TDA5736; TDA5737 Fig.3 Pin configuration (TDA5737M). 5 Philips Semiconductors Product specification 5 V VHF, hyperband and UHF mixers/oscillators for TV and VCR 3-band tuners TDA5736; TDA5737 LIMITING VALUES In accordance with the Absolute Maximum Rating System (IEC 134). SYMBOL PARAMETER MIN. MAX. UNIT VP supply voltage -0.3 +7.0 V VSW switching voltage -0.3 +7.0 V Vn(max) maximum voltage on each pin with a 22 k resistor connected in series - 35 V IO output current of each pin to ground - -10 mA tsc(max) maximum short-circuit time (all pins) - 10 s Tstg IC storage temperature -55 +150 C Tamb operating ambient temperature -20 +80 C Tj junction temperature - 150 C HANDLING Human Body Model: * For TDA5736 GND (15), RFGND (3), VP (9) separate * For TDA5737 GND (10), RFGND (22), VP (16) separate. All pins withstand 2000 V in accordance with the "UZW-BO/FQ-A302". Philips specification equivalent to the "MIL-STD-883C" category B (2000 V) except pins 16 and 17 (8 and 9 for the TDA5737) which withstand 1000 V; R = 1500 , C = 100 pF. Machine Model: * For TDA5736 GND (15), RFGND (3), VP (9) separate * For TDA5737 GND (10), RFGND (22), VP (16) separate. All pins withstand 200 V in accordance with the "UZW-BO/FQ-B302", Philips specification (revision of: Nov. 6th, 1990) except pins 16 and 17 (8 and 9 for the TDA5737) which withstand 100 V; R = 0 , C = 200 pF. THERMAL CHARACTERISTICS SYMBOL Rth j-a 1997 Feb 24 PARAMETER VALUE UNIT SSOP24 120 K/W SO24 75 K/W thermal resistance from junction to ambient in free air 6 Philips Semiconductors Product specification 5 V VHF, hyperband and UHF mixers/oscillators for TV and VCR 3-band tuners TDA5736; TDA5737 CHARACTERISTICS VP = 5 V; Tamb = 25 C; measured in circuit of Fig.17; unless otherwise specified. SYMBOL PARAMETER CONDITIONS MIN. TYP. MAX. UNIT Supply VP supply voltage 4.5 5.0 5.5 V IP supply current 42 50 58 mA VSW switching voltage depending on supply voltage VP 0 - 0.18VP V band B; note 1 0.26VP - 0.47VP V band C; note 1 0.55VP - VP V band A; note 1 - - 2 A band B; note 1 - - 10 A band C; note 1 - - 25 A ISW switching current band A; note 1 Band A mixer (including IF amplifier) fRF frequency range note 2 41 - 171 MHz Gv voltage gain fRF = 50 MHz; see Fig.4; note 3 20.5 23.0 25.5 dB fRF = 170 MHz; see Fig.4; note 3 20.5 23.0 25.5 dB fRF = 50 MHz; see Figs.5 and 6 - 7.5 9 dB fRF = 170 MHz; see Figs.5 and 6 - 9 10 dB fRF = 50 MHz; see Fig.7 115 118 - dBV fRF = 170 MHz; see Fig.7 113 116 - dBV NF Vo noise figure output voltage level causing 1% cross modulation in channel Vi input voltage level causing 10 kHz pulling in channel fRF = 170 MHz; note 4 96 100 - dBmV gos optimum source conductance for noise figure fRF = 50 MHz - 0.5 - mS fRF = 170 MHz - 1.1 - mS Yi input admittance fRF = 50 to 170 MHz; see Fig.12 - 0.3 - mS Ci input capacitance fRF = 50 to 170 MHz; see Fig.12 - 1.9 - pF Band A oscillator fosc frequency range 0.45 V < Vt < 28 V; notes 1 and 5 80 - 210 MHz fshift frequency shift Vp = 5%; note 6 - - 53 kHz fdrift frequency drift with no compensation T = 25 C; NP0 capacitors; note 7 - - 650 kHz 5 s to 15 mins after switch on; NP0 capacitors; note 8 - - 250 kHz T = 25 C; notes 7 and 9; see Fig.18 - - 500 kHz 5 s to 15 mins after switch on; notes 8 and 9; see Fig.18 - - 100 kHz fosc = 80 MHz; 4.75 V < VP < 5.25 V; see Fig.8 20 - - mV fosc = 210 MHz; 4.75 V < VP < 5.25 V; see Fig.8 20 - - mV measured at the IF output at 10 kHz 81 offset; Vo = 105 dBV - - dBc/Hz frequency drift with compensation Vripple N 1997 Feb 24 ripple susceptibility of supply voltage (peak-to-peak value) phase noise 7 Philips Semiconductors Product specification 5 V VHF, hyperband and UHF mixers/oscillators for TV and VCR 3-band tuners SYMBOL PARAMETER TDA5736; TDA5737 CONDITIONS MIN. TYP. MAX. UNIT Band B mixer (including IF amplifier) fRF frequency range note 2 166 - 451 MHz Gv voltage gain fRF = 170 MHz; see Fig.9; note 3 31 34 37 dB fRF = 450 MHz; see Fig.9; note 3 31 34 37 dB noise figure (not corrected for image) fRF = 170 MHz; see Fig.10 - 8 10 dB fRF = 450 MHz; see Fig.10 - 8 10 dB output voltage level causing 1% cross modulation in channel fRF = 170 MHz; see Fig.7 114 117 - dBV fRF = 450 MHz; see Fig.7 112 115 - dBV N Vo Vi input voltage level causing 10 kHz pulling in channel fRF = 450 MHz; note 4 83 87 - dBV Zi input impedance (Rs + jLs) fRF = 170 to 450 MHz; see Fig.13 - 23 - fRF = 170 to 450 MHz; see Fig.13 - 9 - nH Band B oscillator fosc frequency range 0.45 V < Vt < 28 V; notes 1 and 5 205 - 490 MHz fshift frequency shift Vp = 5%; note 6 - - 53 kHz fdrift frequency drift with no compensation frequency drift with compensation Vripple N ripple susceptibility of supply voltage (peak-to-peak value) phase noise T = 25 C; NP0 capacitors; note 7 - - 2000 kHz 5 s to 15 mins after switch on; NP0 capacitors; note 8 - - 750 kHz T = 25 C; notes 7 and 9; see Fig.18 - - 750 kHz 5 s to 15 mins after switch on; notes 8 and 9; see Fig.18 - - 300 kHz fosc = 250 MHz; 4.75 V < VP < 5.25 V; see Fig.8 20 - - mV fosc = 490 MHz; 4.75 V < VP < 5.25 V; see Fig.8 20 - - mV measured at the IF output at 10 kHz 81 offset; Vo = 105 dBmV - - dBc/Hz note 2 446 - 861 MHz Band C Mixer (including IF amplifier) fRF frequency range Gv voltage gain fRF = 450 MHz; see Fig.9; note 3 31 34 37 dB fRF = 860 MHz; see Fig.9; note 3 31 34 37 dB - 9 11 dB N noise figure (not corrected for image) fRF = 450 MHz; see Fig.10 fRF = 860 MHz; see Fig.10 - 9 11 dB Vo output voltage level causing 1% cross modulation in channel fRF = 450 MHz; see Fig.7 112 115 - dBV fRF = 860 MHz; see Fig.7 112 115 - dBV Vi input voltage level causing 10 kHz pulling in channel fRF = 860 MHz; note 4 91 95 - dBV ZI input impedance (Rs + jLs) fRF = 450 to 860 MHz; see Fig.14 - 28 - fRF = 450 to 860 MHz; see Fig.14 - 10 - nH 1997 Feb 24 8 Philips Semiconductors Product specification 5 V VHF, hyperband and UHF mixers/oscillators for TV and VCR 3-band tuners SYMBOL PARAMETER TDA5736; TDA5737 CONDITIONS MIN. TYP. MAX. UNIT Band C oscillator fosc frequency range 0.45 V < Vt < 28 V; notes 1 and 5 485 - 900 MHz fshift frequency shift VP = 5%; note 6 - - 53 kHz fdrift frequency drift with no compensation T = 25 C; NP0 capacitors; note 7 - - 2800 kHz 5 s to 15 mins after switch on; NP0 capacitors; note 8 - - 700 kHz T = 25 C; notes 7 and 9; see Fig.18 - - 1000 kHz 5 s to 15 mins after switch on; notes 8 and 9; see Fig.18 - - 250 kHz fosc = 485 MHz; 4.75 V < VP < 5.25 V; see Fig.8 20 - - mV fosc = 900 MHz; 4.75 V < VP < 5.25 V; see Fig.8 18 - - mV phase noise measured at the IF output at 10 kHz 81 offset; Vo = 105 dBV - - dBc/Hz output admittance (YP+jCP) YP = 80 MHz; see Fig.12 - 2.5 - mS YP = 900 MHz; see Fig.12 - 5 - mS frequency drift with compensation Vripple N ripple susceptibility of supply voltage (peak to peak value) LO output ZO CP; see Fig.12 - 0.9 - pF Vo output voltage RL = 50 ; 0 < Vt < 35 V 80 91 100 dBV SRF spurious signal on LO output with respect to LO output signal RL = 50 ; 0.2 V < Vt < 35 V; notes 1 and 10 - - -10 dB HLO LO signal harmonics with respect to LO signal RL = 50 ; 0 < Vt < 35 V; note 1 - - -10 dB IF amplifier S22 ZO output reflection coefficient output impedance (Rs + jLs) magnitude; see Fig.15 - -16 - dB phase; see Fig.15 - 12 - deg. Rs - 67 - Ls - 20 - nH Notes 1. -20 C < Tamb < +80 C; 4.5 V < VP < 5.5 V. 2. The RF frequency range is defined by the oscillator frequency range and the intermediate frequency. 3. The gain is defined as the transducer gain (measured in Fig.17) plus the voltage transformation ratio of L7 to L8 (10 : 2, 15.4 dB including transformer loss). 4. The input level causing 10 kHz frequency detuning at the LO output. fosc = fRF + 33.4 MHz. 5. Limits are related to the tank circuits used in Fig.17. Frequency bands may be adjusted by the choice of external components. 6. The frequency shift is defined as the change in oscillator frequency when the supply voltage varies from VP = 5 to 4.75 V and from VP = 5 to 5.25 V. 1997 Feb 24 9 Philips Semiconductors Product specification 5 V VHF, hyperband and UHF mixers/oscillators for TV and VCR 3-band tuners TDA5736; TDA5737 7. The frequency drift is defined as the change in oscillator frequency when the ambient temperature varies from Tamb = 25 to 0 C and from Tamb = 25 to 50 C. 8. Switch-on drift is defined as the change in oscillator frequency between 5 s and 15 mins after switch on. 9. With thermal compensation, the capacitors of the tank circuits have the following temperature coefficients: a) In band A: C1, C6 and C8 are N750. b) In band B: C4, C11, C12, C13 and C36 are N750. c) In band C: C5, C7, C9 and C10 are N750; C2 is N220 and C3 is NP0. 10. SRF: spurious signal on LO with respect to LO output signal: a) RF level = 120 dBV at fRF < 180 MHz. b) RF level = 107.5 dBV at fRF = 180 to 225 MHz. c) RF level = 97 dBV at fRF = 225 to 860 MHz. signal 50 source handbook, full pagewidth e V meas V 50 RMS voltmeter Vi TR IF out AIN D.U.T. spectrum analyzer Vo 2x5 turns IF out GND ZI (AIN) >> 50 V i = 2 x Vmeas. Vi = Vmeas + 6 dB. Vo = V'meas + 15.4 dB (transformer ratio N1/N2 = 5 and transformer loss). Gv = 20 log (Vo/Vi). Fig.4 Band A gain measurement. 1997 Feb 24 10 V'meas 2 turns 50 MGD264 N1/N2 = 5 Philips Semiconductors Product specification 5 V VHF, hyperband and UHF mixers/oscillators for TV and VCR 3-band tuners I1 handbook, full pagewidth I3 PCB C1 BNC L1 BNC C2 TDA5736; TDA5737 plug PCB C3 plug I2 RIM-RIM RIM-RIM C4 (a) (b) (a) For fRF = 50 MHz: mixer A frequency response measured = 57 MHz, loss = 0 dB image suppression = 16 dB. C1 = 9 pF C2 = 15 pF L1 = 7 turns (diam. = 5.5 mm, wire diam. = 0.5 mm) I1 = semi rigid cable (RIM): 5 cm long (semi rigid cable (RIM); 33 dB/100 m; 50 ; 96 pF/m). MBE286 - 1 (b) For fRF = 150 MHz: mixer A frequency response measured = 150.3 MHz, loss = 1.3 dB image suppression = 13 dB. C3 = 5 pF C4 = 25 pF I2 = semi rigid cable (RIM): 30 cm long I3 = semi rigid cable (RIM): 5 cm long (semi rigid cable (RIM); 33 dB/100 m; 50 ; 96 pF/m). Fig.5 Input circuit for optimum noise figure in band A. handbook, full pagewidth NOISE SOURCE BNC RIM INPUT CIRCUIT (see Fig. 5) AIN D.U.T. GND 2x5 turns IFOUT2 N1/N2 = 5 MBH046 NF = NFmeas - loss (input circuit) dB. Fig.6 Noise figure measurement in band A. 1997 Feb 24 11 NOISE METER TR IFOUT1 2 turns Philips Semiconductors Product specification 5 V VHF, hyperband and UHF mixers/oscillators for TV and VCR 3-band tuners unwanted signal 50 source TDA5736; TDA5737 FILTER handbook, full pagewidth A RFA C AM = 30% eu ew IF out 33.9 MHz HYBRID 50 18 dB attenuator B VIMA Vo D.U.T. 2x5 turns IF out D wanted signal source 50 2 turns modulation analyzer 50 V V'meas MGE972 N1/N2 = 5 RMS voltmeter V'meas = Vo - 15.4 dB (transformer ratio N1/N2 = 5 and transformer loss). Wanted output signal at fRFW = 50 MHz (170 MHz); Vow = 80 dBV. We measure the level of the unwanted signal Vou causing 1% AM modulation in the wanted output signal; fRFU = 45.5 MHz (165.5 MHz); fosc = 83.9 MHz (203.9 MHz). Vou = V'meas + 15.4 dB. Filter characteristics: fc = 33.9 MHz, f-3dBBW = 1 MHz; f-30dBBW = 2.3 MHz. Fig.7 Cross modulation measurement in band A. VP handbook, full pagewidth DC supply 6.8 k 100 F 100 F ripple signal REFERENCE MEASUREMENT SET-UP OF FIG. 17 WITHOUT L10, C25, C35, C26 to spectrum analyser 53.5 dBc 47 -500 kHz fo +500 kHz MGE974 The ripple susceptibility is defined as the level of a signal added to the supply voltage causing sidebands in the LO output at 53.5 dBc. This signal has a frequency between 20 Hz and 500 kHz. Fig.8 Ripple susceptibility. 1997 Feb 24 12 Philips Semiconductors Product specification 5 V VHF, hyperband and UHF mixers/oscillators for TV and VCR 3-band tuners handbook, full pagewidth 50 signal source A e TDA5736; TDA5737 HYBRID 50 V meas V CIN1 C B Vi D.U.T. D CIN2 TR IFOUT1 spectrum analyzer Vo V'meas 2 turns 2x5 turns MBH048 IFOUT2 N1/N2 = 5 50 RMS voltmeter loss(hybrid) = 1 dB. Vi = Vmeas - loss(hybrid). Vo = V'meas + 15.4 dB (transformer ratio N1/N2 and transformer loss). Voltage gain for band B and C = 20 log (Vo/Vi). Fig.9 Gain measurement in bands B and C. handbook, full pagewidth NOISE SOURCE A C HYBRID B D CIN1 CIN2 NOISE METER TR IFOUT1 D.U.T. 2x5 turns 2 turns IFOUT2 N1/N2 = 5 50 MBH049 Loss of the hybrid: 1 dB. NF = NFmeas - loss of the hybrid. Fig.10 Noise figure measurement in bands B and C. 1997 Feb 24 13 50 Philips Semiconductors Product specification 5 V VHF, hyperband and UHF mixers/oscillators for TV and VCR 3-band tuners TDA5736; TDA5737 unwanted handbook, full pagewidth FILTER signal 50 source A C A RFB (RFC) C AM = 30% eu ew B wanted signal source IF out 33.9 MHz VIMB HYBRID (VIMC) HYBRID 50 18 dB attenuator D B Vo D.U.T. IF out RFB (RFC) D 2x5 turns MGE973 N1/N2 = 5 50 50 50 V 2 turns RMS voltmeter V'meas = Vo - 15.4 dB (transformer ratio N1/N2 = 5 and transformer loss). Wanted output signal at fRFW = 170 or 450 MHz (450 or 860 MHz); Vow = 70 dBV. We measure the level of the unwanted signal Vou causing 1% AM modulation in the wanted output signal; fRFU = 165.5 or 445.5 MHz (445.5 or 855.5 MHz); fOSC = 203.9 or 483.9 MHz (483.9 or 893.9 MHz). Vou = V'meas + 15.4 dB. Filter characteristics: fc = 33.9 MHz, f-3dBBW = 1 MHz; f-30dBBW = 2.3 MHz. Fig.11 Cross modulation measurement in bands B and C. 1 handbook, full pagewidth 2 0.5 0.2 5 10 -j 10 5 2 1 0.5 0.2 40 MHz 0 +j 10 200 MHz 5 0.2 2 0.5 1 MBH055 Fig.12 Input admittance (S11) of the band A mixer input (40 to 200 MHz); Yo = 20 mS. 1997 Feb 24 14 modulation analyzer Philips Semiconductors Product specification 5 V VHF, hyperband and UHF mixers/oscillators for TV and VCR 3-band tuners TDA5736; TDA5737 1 handbook, full pagewidth 0.5 2 470 MHz 0.2 5 10 170 MHz +j 0 0.2 0.5 1 2 5 10 -j 10 5 0.2 2 0.5 1 MBH053 Fig.13 Input impedance (S11) of the band B mixer input (170 to 470 MHz); Zo = 50 . 1 handbook, full pagewidth 0.5 2 860 MHz 0.2 5 460 MHz 10 +j 0 0.2 0.5 1 2 5 10 -j 10 5 0.2 2 0.5 1 MBH054 Fig.14 Input impedance (S11) of the band C mixer input (460 to 860 MHz); Zo = 50 . 1997 Feb 24 15 Philips Semiconductors Product specification 5 V VHF, hyperband and UHF mixers/oscillators for TV and VCR 3-band tuners TDA5736; TDA5737 1 handbook, full pagewidth 0.5 2 0.2 5 10 +j 0 0.2 -j 0.5 45 MHz 25 MHz 1 2 5 10 10 5 0.2 2 0.5 1 MCD523 Fig.15 Input impedance (S22) of the IF amplifier (25 to 45 MHz); Zo = 100 . 1 handbook, full pagewidth 2 0.5 0.2 5 10 -j 10 5 2 1 0.5 0.2 0 80 MHz +j 10 900 MHz 5 2 0.2 0.5 1 MBH056 Fig.16 Input impedance (S22) of the LO amplifier (80 to 900 MHz); Yo = 20 mS. 1997 Feb 24 16 Philips Semiconductors Product specification 5 V VHF, hyperband and UHF mixers/oscillators for TV and VCR 3-band tuners TDA5736; TDA5737 APPLICATION INFORMATION handbook, full pagewidth C33 C32 C34 C31 MEASUREMENT NETWORK L8 IF output C30 Vt R7 R3 R2 R1 R6 R5 LO leakage C16 C17 C2 C1 R8 50 C4 L2 D1 C3 L1 D3 L3 spectrum analyser 50 L7 spectrum analyser L4 D2 L5 C7 C6 C8 23 (2) C5 21 (4) C10 C13 C9 C12 C14 C11 24 22 20 18 (1) (3) (5) (7) 19 (6) 17 (8) 16 (9) BAND A OSCILLATOR BAND C OSCILLATOR BAND B OSCILLATOR MIXER MIXER MIXER L6 C15 15 (10) 14 (11) 13 (12) IF AMPLIFIER TDA5736T TDA5736M TDA5737M ELECTRONIC BAND SWITCH LOCAL OSCILLATOR AMPLIFIER BAND A STAGE (24) (23) 1 2 BAND C STAGE (19) 6 C22 (21) 4 C20 BAND B STAGE (20) 5 C21 (22) 3 (18) 7 DC STABILIZER (17) 8 C23 C24 (16) 9 (15) 10 (14) 11 C27 C25 R10 L10 HYBRID ANZAC-183-4 L9 50 50 50 R12 R11 C26 R9 C29 C28 C35 C18 to C20-C21 or C23-C24 (13) 12 HYBRID ANZAC-183-4 to pre-stages 5V 50 50 C19 50 output A B 5V L7, L8, C16, C17 and R8 are only necessary for measurements (these components are not used in a tuner). The numbers in parenthesis represent the TDA5737M. Fig.17 Measurement circuit. 1997 Feb 24 17 C MGE975 Philips Semiconductors Product specification 5 V VHF, hyperband and UHF mixers/oscillators for TV and VCR 3-band tuners Table 1 Capacitors of Fig.17 (all SMD and NP0 except C34 and C35) NUMBER Table 2 TDA5736; TDA5737 Resistors of Fig.17 (all SMD) NUMBER VALUE VALUE R1 47 k C1 82 pF R2 22 k C2 5.6 pF R3 22 k C3 100 pF R5 27 k C4 82 pF R6 27 k C5 1 pF R7 10 k C6 2 pF R8 50 C7 2 pF R9 4.7 C8 2 pF R10 100 C9 2 pF R11 27 k C10 1 pF R12 15 k C11 3.3 pF C12 3.3 pF C13 4.7 pF C14 1 nF C15 1 nF C16 39 pF C17 39 pF C18 68 pF C19 68 pF Coils(1) C20 1 nF L1 C21 1 nF L2 2.5 t ( 3.5 mm) C22 1 nF L3 1.5 t ( 2.5 mm) C23 1 nF L4 2.5 t ( 3 mm) C24 1 nF L5 5.5 t ( 2.5 mm) C25 2.2 nF L6 5.5 t ( 2.5 mm) C26 1 nF L9 12.5 t ( 5 mm) C27 1 nF L10 2.2 H (choke coil) C28 1 nF Transformers(2) C29 1 nF L7 2x5t C30 1 nF L8 2t C31 1 nF C32 1 nF C33 1 nF C34 2.2 F, 40 V electrolytic C35 4.7 nF 1997 Feb 24 Table 3 Diodes, coils and transformers of Fig.17 NUMBER VALUE Diodes D1 BB132 D2 BB134 D3 BB133 7.5 t ( 3 mm) Notes 1. Wire size for L1 to L6 is 0.4 mm. 2. Coil type: TOKO 7kL. 18 Philips Semiconductors Product specification 5 V VHF, hyperband and UHF mixers/oscillators for TV and VCR 3-band tuners TDA5736; TDA5737 handbook, full pagewidth C33 C32 C34 C31 MEASUREMENT NETWORK L8 IF output C30 Vt R7 R6 R5 LO leakage C16 C17 R13 C2 C1 C4 L2 D1 C3 L1 R8 50 L4 C36 L3 spectrum analyser 50 L7 R3 R2 R1 spectrum analyser D3 D2 L5 C7 C6 C8 23 (2) 21 (4) C10 C13 C9 C5 C12 C14 C11 24 22 20 18 (1) (3) (5) (7) 19 (6) 17 (8) 16 (9) BAND A OSCILLATOR BAND C OSCILLATOR BAND B OSCILLATOR MIXER MIXER MIXER L6 C15 15 (10) 14 (11) 13 (12) IF AMPLIFIER TDA5736T TDA5736M TDA5737M ELECTRONIC BAND SWITCH LOCAL OSCILLATOR AMPLIFIER BAND A STAGE (24) (23) 1 2 BAND C STAGE (19) 6 C22 (21) 4 C20 BAND B STAGE (20) 5 C21 (22) 3 (18) 7 DC STABILIZER (17) 8 C23 C24 (16) 9 (15) 10 (14) 11 C27 C25 to C20-C21 or C23-C24 R10 L10 HYBRID ANZAC-183-4 50 50 50 R12 R11 C26 L9 C29 C28 C35 C18 R9 (13) 12 HYBRID ANZAC-183-4 to pre-stages 5V 50 50 C19 50 output A B 5V L7, L8, C16, C17 and R8 are only necessary for measurements (these components are not used in a tuner). The numbers in parenthesis represent the TDA5737M. Fig.18 Measurement circuit with thermal compensation. 1997 Feb 24 19 C MGE976 Philips Semiconductors Product specification 5 V VHF, hyperband and UHF mixers/oscillators for TV and VCR 3-band tuners Table 4 Capacitors of Fig.18 (all SMD except C34) NUMBER Table 5 TDA5736; TDA5737 Resistors of Fig.18 (all SMD) NUMBER VALUE VALUE C1 62 pF R1 47 k C2 6 pF R2 22 k C3 100 pF R3 22 k C4 68 pF R5 27 k C5 1.2 pF R6 27 k C6 2 pF R7 10 k C7 1.2 pF R8 50 C8 2 pF R9 4.7 C9 1.5 pF R10 100 C10 1.5 pF R11 27 k C11 3 pF R12 15 k C12 3 pF R13 4.7 k C13 4.3 pF C14 1 nF C15 1 nF C16 39 pF C17 39 pF C18 68 pF C19 68 pF C20 1 nF C21 1 nF C22 1 nF C23 1 nF C24 1 nF C25 2.2 nF C26 1 nF C27 1 nF C28 1 nF Table 6 Diodes, coils and transformers of Fig.18 NUMBER VALUE Diodes D1 BB132 D2 BB134 D3 BB133 Coils(1) L1 7.5 t ( 3 mm) L2 2.5 t ( 2 mm) L3 2.5 t ( 2 mm) L4 2.5 t ( 2.5 mm) L5 5.5 t ( 2.5 mm) L6 5.5 t ( 2.5 mm) L9 12.5 t ( 5 mm) L10 2.2 H; choke coil C29 1 nF C30 1 nF Transformers(2) C31 1 nF L7 2 x 5 turns C32 1 nF L8 2 turns C33 1 nF C34 2.2 F; 40 V electrolytic C35 4.7 nF 1. The wire size for L1, L2, L5 and L6 is 0.4 mm. The wire size for L3 and L4 is 0.5 mm. C36 0.5 pF 2. Coil type: TOKO 7kL. 1997 Feb 24 Notes 20 Philips Semiconductors Product specification 5 V VHF, hyperband and UHF mixers/oscillators for TV and VCR 3-band tuners TDA5736; TDA5737 INTERNAL PIN CONFIGURATION AVERAGE DC VOLTAGE IN (V)(1) measured in circuit of Fig.17 PIN SYMBOL DESCRIPTION TDA5736 TDA5737 IFIN1 IFIN2 1 2 24 1 2 (24) (23) 23 BAND A BAND B BAND C 3.6 3.6 3.6 3.6 3.6 3.6 0 0 0 NR NR 1.0 NR NR 1.0 1.8 NR NR NR 1.0 NR NR 1.0 NR 5.0 5.0 5.0 MGE977 RFGND 3 22 3 (22) MGE978 CIN1 4 21 CIN2 5 20 4 5 (21) (20) MGE979 AIN 6 19 6 (19) MGE980 BIN1 7 18 BIN2 8 17 7 8 (18) (17) MGE981 VP 1997 Feb 24 9 16 supply voltage 21 Philips Semiconductors Product specification 5 V VHF, hyperband and UHF mixers/oscillators for TV and VCR 3-band tuners AVERAGE DC VOLTAGE IN (V)(1) measured in circuit of Fig.17 PIN SYMBOL DESCRIPTION TDA5736 TDA5737 LOOUT1 10 15 LOOUT2 11 14 TDA5736; TDA5737 10 11 (15) (14) BAND A BAND B BAND C 4.2 NR NR 4.2 NR NR 0.0 1.8 5.0 MGE982 BS 12 13 12 (13) MGE983 IFOUT1 13 12 2.1 NR NR IFOUT2 14 11 2.1 NR NR 0.0 0.0 0.0 NR 2.7 NR NR 2.7 NR NR 2.0 NR 13 14 (12) GND 15 (11) MGE984 10 15 (10) MGE985 BOSCOC1 16 9 BOSCOC2 17 8 16 17 (9) (8) 19 BOSCIB 19 6 (6) MGE986 1997 Feb 24 22 Philips Semiconductors Product specification 5 V VHF, hyperband and UHF mixers/oscillators for TV and VCR 3-band tuners AVERAGE DC VOLTAGE IN (V)(1) measured in circuit of Fig.17 PIN SYMBOL DESCRIPTION TDA5736 TDA5737 COSCIB1 18 7 COSCOC1 20 5 COSCOC2 22 3 COSCIB2 24 1 AOSCOC 21 4 AOSCIB 23 2 22 20 (3) (5) BAND A BAND B BAND C NR NR 2.0 NR NR 2.7 18 24 (7) (1) NR NR 2.7 MGE987 NR NR 2.0 2.5 NR NR 2.0 NR NR 21 (4) 23 (2) MGE988 Note 1. NR = not relevant. 1997 Feb 24 TDA5736; TDA5737 23 Philips Semiconductors Product specification 5 V VHF, hyperband and UHF mixers/oscillators for TV and VCR 3-band tuners TDA5736; TDA5737 PACKAGE OUTLINES SSOP24: plastic shrink small outline package; 24 leads; body width 5.3 mm D SOT340-1 E A X c HE y v M A Z 24 13 Q A2 A (A 3) A1 pin 1 index Lp L 1 12 bp e detail X w M 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 HE L Lp Q v w y Z (1) mm 2.0 0.21 0.05 1.80 1.65 0.25 0.38 0.25 0.20 0.09 8.4 8.0 5.4 5.2 0.65 7.9 7.6 1.25 1.03 0.63 0.9 0.7 0.2 0.13 0.1 0.8 0.4 8 0o Note 1. Plastic or metal protrusions of 0.20 mm maximum per side are not included. OUTLINE VERSION SOT340-1 1997 Feb 24 REFERENCES IEC JEDEC EIAJ EUROPEAN PROJECTION ISSUE DATE 93-09-08 95-02-04 MO-150AG 24 o Philips Semiconductors Product specification 5 V VHF, hyperband and UHF mixers/oscillators for TV and VCR 3-band tuners TDA5736; TDA5737 SO24: plastic small outline package; 24 leads; body width 7.5 mm SOT137-1 D E A X c HE y v M A Z 13 24 Q A2 A (A 3) A1 pin 1 index Lp L 1 12 e detail X w M bp 0 5 10 mm scale DIMENSIONS (inch dimensions are derived from the original mm dimensions) UNIT A max. A1 A2 A3 bp c D (1) E (1) e HE L Lp Q v w y mm 2.65 0.30 0.10 2.45 2.25 0.25 0.49 0.36 0.32 0.23 15.6 15.2 7.6 7.4 1.27 10.65 10.00 1.4 1.1 0.4 1.1 1.0 0.25 0.25 0.1 0.10 0.012 0.096 0.004 0.089 0.01 0.019 0.013 0.014 0.009 0.61 0.60 0.30 0.29 0.050 0.42 0.39 inches 0.043 0.055 0.016 0.043 0.039 0.01 0.01 Z (1) 0.9 0.4 0.035 0.004 0.016 Note 1. Plastic or metal protrusions of 0.15 mm maximum per side are not included. REFERENCES OUTLINE VERSION IEC JEDEC SOT137-1 075E05 MS-013AD 1997 Feb 24 EIAJ EUROPEAN PROJECTION ISSUE DATE 92-11-17 95-01-24 25 o 8 0o Philips Semiconductors Product specification 5 V VHF, hyperband and UHF mixers/oscillators for TV and VCR 3-band tuners TDA5736; TDA5737 SOLDERING SSOP Introduction Wave soldering is not recommended for SSOP packages. This is because of the likelihood of solder bridging due to closely-spaced leads and the possibility of incomplete solder penetration in multi-lead devices. There is no soldering method that is ideal for all IC packages. Wave soldering is often preferred when through-hole and surface mounted components are mixed on one printed-circuit board. However, wave soldering is not always suitable for surface mounted ICs, or for printed-circuits with high population densities. In these situations reflow soldering is often used. If wave soldering cannot be avoided, the following conditions must be observed: * A double-wave (a turbulent wave with high upward pressure followed by a smooth laminar wave) soldering technique should be used. This text gives a very brief insight to a complex technology. A more in-depth account of soldering ICs can be found in our "IC Package Databook" (order code 9398 652 90011). * The longitudinal axis of the package footprint must be parallel to the solder flow and must incorporate solder thieves at the downstream end. Reflow soldering Even with these conditions, only consider wave soldering SSOP packages that have a body width of 4.4 mm, that is SSOP16 (SOT369-1) or SSOP20 (SOT266-1). Reflow soldering techniques are suitable for all SO and SSOP packages. Reflow soldering requires solder paste (a suspension of fine solder particles, flux and binding agent) to be applied to the printed-circuit board by screen printing, stencilling or pressure-syringe dispensing before package placement. METHOD (SO AND SSOP) During placement and before soldering, the package must be fixed with a droplet of adhesive. The adhesive can be applied by screen printing, pin transfer or syringe dispensing. The package can be soldered after the adhesive is cured. Several techniques exist for reflowing; for example, thermal conduction by heated belt. Dwell times vary between 50 and 300 seconds depending on heating method. Typical reflow temperatures range from 215 to 250 C. Maximum permissible solder temperature is 260 C, and maximum duration of package immersion in solder is 10 seconds, if cooled to less than 150 C within 6 seconds. Typical dwell time is 4 seconds at 250 C. Preheating is necessary to dry the paste and evaporate the binding agent. Preheating duration: 45 minutes at 45 C. A mildly-activated flux will eliminate the need for removal of corrosive residues in most applications. Wave soldering SO Repairing soldered joints Wave soldering techniques can be used for all SO packages if the following conditions are observed: Fix the component by first soldering two diagonallyopposite end leads. Use only a low voltage soldering iron (less than 24 V) applied to the flat part of the lead. Contact time must be limited to 10 seconds at up to 300 C. When using a dedicated tool, all other leads can be soldered in one operation within 2 to 5 seconds between 270 and 320 C. * A double-wave (a turbulent wave with high upward pressure followed by a smooth laminar wave) soldering technique should be used. * The longitudinal axis of the package footprint must be parallel to the solder flow. * The package footprint must incorporate solder thieves at the downstream end. 1997 Feb 24 26 Philips Semiconductors Product specification 5 V VHF, hyperband and UHF mixers/oscillators for TV and VCR 3-band tuners TDA5736; TDA5737 DEFINITIONS Data sheet status Objective specification This data sheet contains target or goal specifications for product development. Preliminary specification This data sheet contains preliminary data; supplementary data may be published later. Product specification This data sheet contains final product specifications. Limiting values Limiting values given are in accordance with the Absolute Maximum Rating System (IEC 134). Stress above one or more of the limiting values may cause permanent damage to the device. These are stress ratings only and operation of the device at these or at any other conditions above those given in the Characteristics sections of the specification is not implied. Exposure to limiting values for extended periods may affect device reliability. Application information Where application information is given, it is advisory and does not form part of the specification. LIFE SUPPORT APPLICATIONS These products are not designed for use in life support appliances, devices, or systems where malfunction of these products can reasonably be expected to result in personal injury. Philips customers using or selling these products for use in such applications do so at their own risk and agree to fully indemnify Philips for any damages resulting from such improper use or sale. 1997 Feb 24 27 Philips Semiconductors - a worldwide company Argentina: see South America Australia: 34 Waterloo Road, NORTH RYDE, NSW 2113, Tel. +61 2 9805 4455, Fax. +61 2 9805 4466 Austria: Computerstr. 6, A-1101 WIEN, P.O. Box 213, Tel. +43 1 60 101, Fax. +43 1 60 101 1210 Belarus: Hotel Minsk Business Center, Bld. 3, r. 1211, Volodarski Str. 6, 220050 MINSK, Tel. +375 172 200 733, Fax. +375 172 200 773 Belgium: see The Netherlands Brazil: see South America Bulgaria: Philips Bulgaria Ltd., Energoproject, 15th floor, 51 James Bourchier Blvd., 1407 SOFIA, Tel. +359 2 689 211, Fax. +359 2 689 102 Canada: PHILIPS SEMICONDUCTORS/COMPONENTS, Tel. +1 800 234 7381 China/Hong Kong: 501 Hong Kong Industrial Technology Centre, 72 Tat Chee Avenue, Kowloon Tong, HONG KONG, Tel. +852 2319 7888, Fax. +852 2319 7700 Colombia: see South America Czech Republic: see Austria Denmark: Prags Boulevard 80, PB 1919, DK-2300 COPENHAGEN S, Tel. +45 32 88 2636, Fax. +45 31 57 1949 Finland: Sinikalliontie 3, FIN-02630 ESPOO, Tel. +358 9 615800, Fax. +358 9 61580/xxx France: 4 Rue du Port-aux-Vins, BP317, 92156 SURESNES Cedex, Tel. +33 1 40 99 6161, Fax. +33 1 40 99 6427 Germany: Hammerbrookstrae 69, D-20097 HAMBURG, Tel. +49 40 23 53 60, Fax. +49 40 23 536 300 Greece: No. 15, 25th March Street, GR 17778 TAVROS/ATHENS, Tel. +30 1 4894 339/239, Fax. +30 1 4814 240 Hungary: see Austria India: Philips INDIA Ltd, Shivsagar Estate, A Block, Dr. Annie Besant Rd. Worli, MUMBAI 400 018, Tel. +91 22 4938 541, Fax. +91 22 4938 722 Indonesia: see Singapore Ireland: Newstead, Clonskeagh, DUBLIN 14, Tel. +353 1 7640 000, Fax. +353 1 7640 200 Israel: RAPAC Electronics, 7 Kehilat Saloniki St, TEL AVIV 61180, Tel. +972 3 645 0444, Fax. +972 3 649 1007 Italy: PHILIPS SEMICONDUCTORS, Piazza IV Novembre 3, 20124 MILANO, Tel. +39 2 6752 2531, Fax. +39 2 6752 2557 Japan: Philips Bldg 13-37, Kohnan 2-chome, Minato-ku, TOKYO 108, Tel. +81 3 3740 5130, Fax. +81 3 3740 5077 Korea: Philips House, 260-199 Itaewon-dong, Yongsan-ku, SEOUL, Tel. +82 2 709 1412, Fax. +82 2 709 1415 Malaysia: No. 76 Jalan Universiti, 46200 PETALING JAYA, SELANGOR, Tel. +60 3 750 5214, Fax. +60 3 757 4880 Mexico: 5900 Gateway East, Suite 200, EL PASO, TEXAS 79905, Tel. +9-5 800 234 7381 Middle East: see Italy Netherlands: Postbus 90050, 5600 PB EINDHOVEN, Bldg. VB, Tel. +31 40 27 82785, Fax. +31 40 27 88399 New Zealand: 2 Wagener Place, C.P.O. Box 1041, AUCKLAND, Tel. +64 9 849 4160, Fax. +64 9 849 7811 Norway: Box 1, Manglerud 0612, OSLO, Tel. +47 22 74 8000, Fax. +47 22 74 8341 Philippines: Philips Semiconductors Philippines Inc., 106 Valero St. Salcedo Village, P.O. Box 2108 MCC, MAKATI, Metro MANILA, Tel. +63 2 816 6380, Fax. +63 2 817 3474 Poland: Ul. Lukiska 10, PL 04-123 WARSZAWA, Tel. +48 22 612 2831, Fax. +48 22 612 2327 Portugal: see Spain Romania: see Italy Russia: Philips Russia, Ul. Usatcheva 35A, 119048 MOSCOW, Tel. +7 095 755 6918, Fax. +7 095 755 6919 Singapore: Lorong 1, Toa Payoh, SINGAPORE 1231, Tel. +65 350 2538, Fax. +65 251 6500 Slovakia: see Austria Slovenia: see Italy South Africa: S.A. PHILIPS Pty Ltd., 195-215 Main Road Martindale, 2092 JOHANNESBURG, P.O. Box 7430 Johannesburg 2000, Tel. +27 11 470 5911, Fax. +27 11 470 5494 South America: Rua do Rocio 220, 5th floor, Suite 51, 04552-903 Sao Paulo, SAO PAULO - SP, Brazil, Tel. +55 11 821 2333, Fax. +55 11 829 1849 Spain: Balmes 22, 08007 BARCELONA, Tel. +34 3 301 6312, Fax. +34 3 301 4107 Sweden: Kottbygatan 7, Akalla, S-16485 STOCKHOLM, Tel. +46 8 632 2000, Fax. +46 8 632 2745 Switzerland: Allmendstrasse 140, CH-8027 ZURICH, Tel. +41 1 488 2686, Fax. +41 1 481 7730 Taiwan: Philips Semiconductors, 6F, No. 96, Chien Kuo N. Rd., Sec. 1, TAIPEI, Taiwan Tel. +886 2 2134 2870, Fax. +886 2 2134 2874 Thailand: PHILIPS ELECTRONICS (THAILAND) Ltd., 209/2 Sanpavuth-Bangna Road Prakanong, BANGKOK 10260, Tel. +66 2 745 4090, Fax. +66 2 398 0793 Turkey: Talatpasa Cad. No. 5, 80640 GULTEPE/ISTANBUL, Tel. +90 212 279 2770, Fax. +90 212 282 6707 Ukraine: PHILIPS UKRAINE, 4 Patrice Lumumba str., Building B, Floor 7, 252042 KIEV, Tel. +380 44 264 2776, Fax. +380 44 268 0461 United Kingdom: Philips Semiconductors Ltd., 276 Bath Road, Hayes, MIDDLESEX UB3 5BX, Tel. +44 181 730 5000, Fax. +44 181 754 8421 United States: 811 East Arques Avenue, SUNNYVALE, CA 94088-3409, Tel. +1 800 234 7381 Uruguay: see South America Vietnam: see Singapore Yugoslavia: PHILIPS, Trg N. Pasica 5/v, 11000 BEOGRAD, Tel. +381 11 625 344, Fax.+381 11 635 777 For all other countries apply to: Philips Semiconductors, Marketing & Sales Communications, Building BE-p, P.O. Box 218, 5600 MD EINDHOVEN, The Netherlands, Fax. +31 40 27 24825 Internet: http://www.semiconductors.philips.com (c) Philips Electronics N.V. 1997 SCA53 All rights are reserved. Reproduction in whole or in part is prohibited without the prior written consent of the copyright owner. The information presented in this document does not form part of any quotation or contract, is believed to be accurate and reliable and may be changed without notice. No liability will be accepted by the publisher for any consequence of its use. Publication thereof does not convey nor imply any license under patent- or other industrial or intellectual property rights. Printed in The Netherlands 547047/1200/04/pp28 Date of release: 1997 Feb 24 Document order number: 9397 750 01692