7464

TDA7464 STMICROELECTRONICS | Alldatasheet

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DIGITALLY CONTROLLED AUDIO PROCESSOR WITH SRS SURROUND SOUND AND VOICE CANCELLER

4 STEREO INPUTS

INPUT ATTENUATION CONTROL IN 0.5dB STEP TREBLE MIDDLE AND BASS CONTROL VOICE CANCELLER IS AVAILABLE STEREO SRS SURROUND SOUND WITH CENTER & SPACE CONTROL IS AVAILABLE THREE STANDARD SURROUND MODES ARE AVAILABLE: - MUSIC IN 4 DIFFERENT SELECTABLE RESPONSES - MOVIE AND SIMULATED IN 256 DIFFERENT SELECTABLE RESPONSES

2 SPEAKERS OUTPUTS

• INDEPENDENT ATTENUATORS IN 1dB STEP FOR BALANCE FACILITY - ZERO CROSSING ATTENUATION AVAILABLE - INDEPENDENT MUTE FUNCTION

2 RECORD OUTPUTS

• INDEPENDENT ATTENUATORS IN 1dB STEP FOR BALANCE FACILITY - MUX AVAILABLE FORPROCESSES SIGNAL SELECTION - INDEPENDENT MUTE FUNCTION ALL FUNCTIONS PROGRAMMABLE VIA SE- RIAL BUS

DESCRIPTION

The TDA7464 is a volume tone (bass middle and treble) balance (Left/Right) processors with stereo SRS and voice canceller for quality audio applica- tions in car radio, Hi-Fi, TV systems. It reproduces SRS (Sound Retrieval System) sound by external components and surround sound by using phase shifters and a signal ma- trix. The AC signal setting is obtained by resistor networks and switches combined with operational amplifiers according to the SRS laboratories specification. Control of all the functions is ac- complished by serial bus. Thanks to the used BIPOLAR/CMOS Technology, Low Distortion, Low Noise and DC stepping are obtained. February 1998 ORDERING NUMBER: TDA7464 TQFP44 18 19 20 21 22 44 43 42 41 3940 38 37 36 35 34 VAR_L NETW2 NETW1 HP1 LP1 HP2 BASS_LI BASS_LO BASSO_R BASSO_L VAR_R BASS_RO BASS_RI MIDDLE_LO MIDDLE_LI MIDDLE_RI MIDDLE_RO TREBLE_R TREBLE_L AGND SDA SCL LP PS1 PS2 PS3 V S PS4 CREF R_IN4 R_IN3 R_IN2 LPVC L_IN4 RECOUT_L RECOUT_R R_OUT DIG_GND L_OUT R_IN1 L_IN1 L_IN2 L_IN3 VREFOUT D96AU483C 12 13 14 15 16 PIN CONNECTION The Device incorporates the SRS (Sound Retrieval System) under licence from SRS Labs, Inc.

0.22µF SUPPLY V S AGND CREF TREBLE 18nF MIDDLE 2.7K MIDDLE-LI MIDDLE-LO 22nF RM BASS BASS-LI MUTE D96AU481D MUTE I2C BUS DECODER + LATCHES SPKR ATT REC ATT TREBLE MIDDLE BASS 18nF 22nF 2.7K 5.6nF MUTE SPKR ATT MUTE REC ATT SCL SDA DIG_GND R-OUT RECOUT-R L-OUT RECOUT-L 22µF + - RHP1 LP1 HP1 HP2 5.6nF 680nF PS1 90Hz 100nF PS1 RPS1 SIM MOVIE/ MUSIC MUSIC PS2 4KHz PS3 400Hz PS4 400Hz 4.7nF PS2 RPS2 22nF PS3 RPS3 22nF PS4 RPS4 MOVIE/ SIM MIXING AMP LPF 9KHz EFFECT CONTROL MIXING AMP 1.2nF LP MIDDLE-RI MIDDLE-RO 123 4 3 4 2 4 1 4 0 39 20 38 44 15 14 11 17 16 13 +LPF 100nF LPVC TREBLE-R 79dB CONTROL 5.6nF TREBLE-L 100nF 5.6K 100nF BASS-LO 100nF 100nF 5.6KBASS-RI BASS-RO 79dB CONTROL 79dB CONTROL 2.2µF BASSO-R VAR-R 30K 2.2µF BASSO-L VAR-L 30K 79dB CONTROL 10 7 6 89121834 0.22µF 31.5dB control R-IN4 31.5dB control 0.47µF NETW1NETW2 VOICE ON SURR SRS SURR REAR FIX 3BAND SURR REAR FIX 3BAND FIX VAR RB FIX VAR 50K 50K STEREO SRS CENTER SPACE 4.42K 0.47µF 1.5K 32.4K 130K 47.5K 4.7nF 3.74K VREFOUT RM RB V REF OFF FIX SURR SRS FIX 100K MIX SW MIX SW N.B. SW N.B. SW L-IN2 0.22µF 50K L-IN3 0.22µF 29 50K L-IN4 0.22µF 50K 0.22µF R-IN3 50K 0.22µF R-IN2 50K 0.22µF R-IN1 50K BLOCK DIAGRAM TDA7464

Symbol Description Value Unit R th j-pins Thermal Resistance Junction-pins Ma x. 85 °C/W QUICK REFERENCE DATA Symbol Parameter Min. Typ. Max. Unit VS Supply Voltage 7 9 10.2 V VCL Max. input signal handling 2 Vrms THD Total Harmonic Distortion V = 1Vrms f = 1KHz 0.01 0.1 % S/N Signal to Noise Ratio Vout= 1Vrms (mode = OFF) 106 dB S C Channel Separation f = 1KHz 90 dB Input Attenuation Control (0.5dB) -31.5 0 dB Treble Control (2db step) -14 +14 dB Middle Control (2db step) -14 +14 dB Bass Control (2dB step) -14 +14 dB Balance Control 1dB step (L CH, R CH ) -79 0 dB Mute Attenuation 100 dB ABSOLUTE MAXIMUM RATINGS Symbol Parameter Value Unit VS Operating Supply Voltage 11 V Tamb Operating Ambient Temperature -10 to 85 °C Tstg Storage Temperature Range -55 to +150 °C ELECTRICAL CHARACTERISTICS (refer to the test circuit Tamb =2 5°C, VS = 9V, RL = 10KΩ , Vin= 1Vrms; RG = 600Ω , all controls flat (G = 0dB), Effect Ctrl = -6dB, MODE = OFF; f = 1KHz unless otherwise specified) Symbol Parameter Test Condition Min. Typ. Max. Unit SUPPLY VS Supply Voltage 7 9 10.2 V IS Supply Current 25 mA SVR Ripple Rejection L CH /R CH out, Mode = OFF 60 80 dB INPUT STAGE R IN Input Resistance 37.5 50 62.5 K Ω V CL Clipping Level THD = 0.3% 2 2.5 Vrms ARANGE Attenuation Range 31.5 dB AVMIN Min. Attenuation -1 0 1 dB AVMAX Max. Attenuation 31 31.5 32 dB ASTEP Step Resolution -1 0.5 1 dB VDC DC Steps Adjacent att. step -3 0 3 mV AVO1 Voice Canceller Output 1 L IN =R IN,R IN = ON, Vmix = 0V FIX, 0dB attenuation 567 d B AVO2 Voice Canceller Output 2 L IN =R IN =0 VV mix =1 Vrms FIX, 0dB attenuation -1 0 1 dB TDA7464

ELECTRICAL CHARACTERISTICS (continued) Symbol Parameter Test Condition Min. Typ. Max. Unit SUPPLY AVO3 Voice Canceller Output 3 L IN =- RIN,V mix = 0V FIX, 0dB attenuation 567 d B R LPV Low Pass Filter Resistance 24 32 40 K Ω BASS CONTROL Gb Control Range Max. Boost/cut +12.0 +14.0 +16.0 dB BSTEP Step Resolution 1 2 3 dB R B Internal Feedback Resistance 33 44 55 K Ω MIDDLE CONTROL Gm Control Range Max. Boost/cut +12.0 +14.0 +16.0 dB M STEP Step Resolution 1 2 3 dB R M Internal Feedback Resistance 18.75 25 31.25 K Ω TREBLE CONTROL Gt Control Range Max. Boost/cut +13.0 +14.0 +15.0 dB TSTEP Step Resolution 1 2 3 dB STANDARD SURROUND SOUND MATRIX TEST CONDITION (Phase Resistor Selection D0=0, D1=1, D2=0. D3=1, D4=0, D5=1, D6=0, D7=1 Symbol Parameter Test Condition Min. Typ. Max. Unit G OFF In-phase Gain (OFF) Mode OFF, Input signal of 1kHz, 1.4 Vp-p,R in→ R out Lin → Lout -1 0 1 dB D GOFF LR In-phase Gain Difference (OFF) Mode OFF, Input signal of 1kHz, 1.4 Vp-p R in→ R out,Lin → Lout -1 0 1 dB G MOV In-phase Gain (Movie) Movie mode, Effect Ctrl = -6dB Input signal of 1kHz, 1.4 Vp-p R in→ R out,Lin→ Lout 8d B D GMOV LR In-phase Gain Difference (Movie) Movie mode, Effect Ctrl = -6dB Input signal of 1kHz, 1.4 Vp-p (Rin→ R out)–( Lin→ Lout) 0d B G MUS In-phase Gain (Music) Music mode, Effect Ctrl = -6dB Input signal of 1kHz, 1.4 Vp-p (Rin→ R out), (Lin→ Lout) 7d B D GMUS LR In-phase Gain Difference (Music) Music mode, Effect Ctrl = -6dB Input signal of 1kHz, 1.4 Vp-p (Rin→ R out)-( Lin→ Lout) 0d B LMON1 Simulated L Output 1 Simulated Mode, EffectCtrl= -6dB Input signal of 250Hz,

1.4 Vp-p,R inand Lin→ Lout

4.5 dB LMON2 Simulated L Output 2 Simulated Mode, EffectCtrl= -6dB Input signal of 1kHz, – 4.0 dB LMON3 Simulated L Output 3 Simulated Mode, EffectCtrl= -6dB Input signal of 3.6kHz, 1.4 V p-p,R inand Lin→ Lout 7.0 dB TDA7464

ELECTRICAL CHARACTERISTICS (continued) Symbol Parameter Test Condition Min. Typ. Max. Unit R MON1 Simulated R Output 1 Simulated Mode, EffectCtrl = -6dB Input signal of 250Hz, 1.4 V p-p,R inand Lin→ R out – 4.5 dB R MON2 Simulated R Output 2 Simulated Mode, EffectCtrl = -6dB Input signal of 1kHz,

1.4 Vp-p,R inand Lin→ R out

3.8 dB R MON3 Simulated R Output 3 Simulated Mode, EffectCtrl = -6dB Input signal of 3.6kHz, –2 0 d B R LP1 Low Pass Filter Resistance 7.5 10 12.5 K Ω R HPI High Pass Filter Resistance 45 60 75 K Ω R LPF LP Pin Impedance 7.5 10 12.5 K Ω STANDARD SURROUND SOUND EFFECT CONTROL C RANGE Control Range - 21 - 6 dB SSTEP Step Resolution 1 dB SURROUND SOUND MATRIX PHASE R PS10 Phase Shifter 1: D1 = 0, D0 = 0 8.8 11.8 14.8 K Ω R PS11 Phase Shifter 1: D1 = 0, D0 = 1 10.6 14.1 17.6 K Ω R PS12 Phase Shifter 1: D1 = 1, D0 = 0 13.4 17.9 22.4 K Ω R PS13 Phase Shifter 1: D1 = 1, D0 = 1 28 37.3 46.6 K Ω R PS20 Phase Shifter 2: D3 = 0, D2 = 0 4.2 5.6 7 K Ω R PS21 Phase Shifter 2: D3 = 0, D2 = 1 5.1 6.8 8.5 K Ω R PS22 Phase Shifter 2: D3 = 1, D2 = 0 6.3 8.4 10.5 K Ω R PS23 Phase Shifter 2: D3 = 1, D2 = 1 13.7 18.3 22.9 K Ω R PS30 Phase Shifter 3: D5 = 0, D4 = 0 9 12.1 15.1 K Ω R PS31 Phase Shifter 3: D5 = 0, D4 = 1 10.9 14.5 18.1 K Ω R PS32 Phase Shifter 3: D5 = 1, D4 = 0 13.6 18.1 22.6 K Ω R PS33 Phase Shifter 3: D5 = 1, D4 = 1 29.3 39.1 48.9 K Ω R PS40 Phase Shifter 4: D7 = 0, D6 = 0 9 12.1 15.1 K Ω R PS41 Phase Shifter 4: D7 = 0, D6 = 1 10.9 14.5 18.1 K Ω R PS42 Phase Shifter 4: D7 = 1, D6 = 0 13.6 18.1 22.6 K Ω R PS43 Phase Shifter 4: D7 = 1, D6 = 1 29.3 39.1 48.9 K Ω SRS SURROUND SOUND MATRIX CENTER SRS Control Range -31 0 dB StepC Center Step Resolution 1 dB SPACE SRS Space Control Range -31 0 dB StepS Space Step Resolution 1 dB PERSP1 Perspective 1 Input Signal of 125Hz SPACE= 0dB, CENTER = MUTE R in= GND; Lin → ROUT 12 dB PERSP2 Perspective 2 Input Signal of 2.15KHz SPACE= 0dB, CENTER = MUTE R in= GND; Lin → ROUT 0d B L+R L+ R SRS Curve SPACE = MUTE, CENTER =0dB R in= GND; Lin → ROUT -8.5 dB L, R L, R SRS Curve SPACE = MUTE, CENTER = MUTE R in= GND; Lin → LOUT Lin= GND; Rin → ROUT -13.4 dB TDA7464

ELECTRICAL CHARACTERISTICS (continued) Symbol Parameter Test Condition Min. Typ. Max. Unit SPEAKER & RECORD ATTENUATORS C range Control Range 79 dB SSTEP Step Resolution 0.5 1 1.5 dB EA Attenuation set error Av = 0 to -20dB -1.5 0 1.5 dB Av = -20 to -79dB -3 0 2 dB VDC DC Steps Adjacent att. steps -3 0 3 mV AMUTE Output Mute Condition 70 100 dB R VAR Input Impedance 22.5 30 37.5 K Ω SPEAKER ATTENUATORS V TH Zero CrossingThreshold D7 = 0 VS 2 + 20 mV AUDIO OUTPUTS N O(OFF) Output Noise (OFF) Output Mute, Flat BW = 20Hz to 20KHz µVrms µVrms N O(MOV) Output Noise (Movie) Standard Surround Sound Mode = Movie , BW = 20Hz to 20KHz 30 µVrms N O(MUS) Output Noise (Music) Standard Surround Sound Mode = Music , BW = 20Hz to 20KHz, N O(SIM) Output Noise (Simulated) Standard Surround Sound Mode = Simulated, BW = 20Hz to 20KHz 30 µVrms N O(SRS) Output Noise (SRS) Surround Sound BW = 20Hz to 20KHz 50 µVrms d Distorsion Av = 0 ; V in= 1Vrms 0.01 0.1 % SC Channel Separation 70 90 dB VOCL Clipping Level d = 0.3% 2 2.5 Vrms R OUT Output Resistance 10 30 50 Ω VOUT DC Voltage Level 3.8 V BUS INPUTS V IL Input Low Voltage 1V VIH Input High Voltage 3 V IIN Input Current -5 +5 µA VO Output Voltage SDA Acknowledge IO = 1.6mA 0.4 V µVrms TDA7464

The interface protocol comprises: A start condition (S) A chip address byte, containing the TDA7464 address A subaddressbytes A sequenceof data (N byte + achnowledge) A stop condition (P) ACK = Achnowledge S = Start P = Stop A = Address B = Auto Increment S100000A0A C K A C K DATA ACK P MSB LSB MSB LSB MSB LSB CHIP ADDRESS D95AU226A B DATA SUBADDRESS DATA 1 to DATA n EXAMPLES No Incremental Bus The TDA7464 receives a start condition, the cor- rect chip address, a subaddress with the MSB = 0 (no incremental bus), N-data (all these data con- cern the subaddress selected), a stop condition. S100000A0A C K A C K DATA ACK P MSB LSB MSB LSB MSB LSB CHIP ADDRESS D95AU306 0D 3 SUBADDRESS DATA X X X D2 D1 D0 Incremental Bus The TDA7464 receives a start condition, the cor- rect chip address, a subaddress with the MSB = 1 (incremental bus): now it is in a loop condition with an autoincrease of the subaddress whereas SUBADDRESS from ”1XXX1010” to ”1XXX1111” of DATA are ignored. The DATA 1 concerns thesubaddress sent, and the DATA 2 concerns the subaddress sent plus one in the loop etc. and, at the end, it receives the stop condition. S100000A0A C K A C K DATA ACK P MSB LSB MSB LSB MSB LSB CHIP ADDRESS D95AU307 1D 3 SUBADDRESS DATA 1 to DATA n X X X D2 D1 D0 TDA7464

D7 D6 D5 D4 D3 D2 D1 D0 0.5 dB STEPS 1 000 0 1 0 0 1 -0.5 1 010 - 1 1 0 1 1 -1.5 1 100 - 2 1 1 0 1 -2.5 1 110 - 3 1 1 1 1 -3.5 4 dB STEPS 1000 0 1001 - 4 1010 - 8 1011 - 1 2 1100 - 1 6 1101 - 2 0 1110 - 2 4 1111 - 2 8 INPUT ATTENUATION = 0 ∼ -31.5dB INPUT ATTENUATION SELECTION MSB LSB SUBADDRESS D7 D6 D5 D4 D3 D2 D1 D0 B X X X 0 0 0 0 INPUT ATTENUATION B X X X 0 0 0 1 SURROUND & OUT & EFFECT CONTROL B X X X 0 0 1 0 PHASE RESISTOR B X X X 0 0 1 1 BASS B X X X 0 1 0 0 MIDDLE & TREBLE B X X X 0 1 0 1 SPEAKER ATTENUATION ”L” B X X X 0 1 1 0 SPEAKER ATTENUATION ”R” B X X X 0 1 1 1 RECORD ATTENUATION ”L” B X X X 1 0 0 0 RECORD ATTENUATION”R” B X X X 1 0 0 1 INPUT MULTIPLEXER, VOICE CANCELLER & REC OUT B X X X 1 0 1 0 SRS / SPACE ATTENUATION B X X X 1 0 1 1 SRS / CENTER ATTENUATION B = 1 INCREMENTAL BUS; ACTIVE B = 0 NO INCREMENTAL BUS; X = DON’T CARE The first byte (subaddress) DATA BYTES (Address = 80(HEX)): FUNCTION SELECTION: TDA7464

D7 D6 D5 D4 D3 D2 D1 D0 SURROUND MODE 0 0 SIMULATED 0 1 MUSIC 1 0 OFF 1 1 MOVIE OUT

0 VAR

1 FIX

D7 D6 D5 D4 D3 D2 D1 D0 PHASE SHIFT 1 (K Ω ) 00 1 2 01 1 4 10 1 8 11 3 7 PHASE SHIFT 2 (KΩ ) 00 6 01 7 10 8 11 1 8 PHASE SHIFT 3 (KΩ ) 00 1 2 01 1 4 10 1 8 11 3 9 PHASE SHIFT 4 (KΩ ) 00 12 01 14 10 18 11 39 STANDARD SURROUND SELECTION TDA7464

D7 D6 D5 D4 D3 D2 D1 D0 2 dB STEPS 10000 - 1 4 10001 - 1 2 10010 - 1 0 10011 - 8 10100 - 6 10101 - 4 10110 - 2 10111 0 11111 0 11110 2 11101 4 11100 6 11011 8 11010 1 0 11001 1 2 11000 1 4 TDA7464

MIDDLE & TREBLE SELECTION MSB LSB MIDDLE D7 D6 D5 D4 D3 D2 D1 D0 2 dB STEPS 0000 - 1 4 0001 - 1 2 0010 - 1 0 0011 - 8 0100 - 6 0101 - 4 0110 - 2 0111 0 1111 0 1110 2 1101 4 1100 6 1011 8 1010 1 0 1001 1 2 1000 1 4 TREBLE 2 dB STEPS 0000 - 1 4 0001 - 1 2 0010 - 1 0 0011 - 8 0100 - 6 0101 - 4 0110 - 2 0111 0 1111 0 1110 2 1101 4 1100 6 1011 8 1010 1 0 1001 1 2 1000 1 4 TDA7464

LEFT CHANNEL SPEAKER ATTENUATION SELECTION MSB LSB SPEAKER/RECORD ATT D7 D6 D5 D4 D3 D2 D1 D0 1 dB STEPS 000 0 001 - 1 010 - 2 011 - 3 100 - 4 101 - 5 110 - 6 111 - 7 8 dB STEPS 0000 0 0001 - 8 0010 - 1 6 0011 - 2 4 0100 - 3 2 0101 - 4 0 0110 - 4 8 0111 - 5 6 1000 - 6 4 1001 - 7 2 MUTE 101X 11XX LEFT & RIGHT CHANNELS BOTH MSB LSB ZERO CROSS ATT. MODE D7 D6 D5 D4 D3 D2 D1 D0 1 dB STEPS 0 ON

1 OFF

X = DON’T CARE SPEAKER/RECORD ATTENUATION = 0dB ∼ -79dB TDA7464

RECORD AND RIGHT CHANNEL SPEAKER ATTENUATION SELECTION MSB LSB SPEAKER/RECORD ATT D7 D6 D5 D4 D3 D2 D1 D0 1 dB STEPS 000 0 001 - 1 010 - 2 011 - 3 100 - 4 101 - 5 110 - 6 111 - 7 8 dB STEPS 0000 0 0001 - 8 0010 - 1 6 0011 - 2 4 0100 - 3 2 0101 - 4 0 0110 - 4 8 0111 - 5 6 1000 - 6 4 1001 - 7 2 MUTE 101X 11XX X = DON’T CARE SPEAKER/RECORD ATTENUATION = 0dB ∼ -79dB VOICE CANCELLER/INPUT/RECOUT L & R SELECTION MSB LSB D7 D6 D5 D4 D3 D2 D1 D0 VOICE CANCELLER 1 0 OFF 1 1O N INPUT MULTIPLEXER 1 0 0 0 0 IN_2 1 0 1 0 1 IN_3 1 1 0 1 0 IN_4 1 1 1 1 1 IN_1 REC OUT ”L” 1 0 0 VAR 1 (3BAND) 1 0 1 VAR 2 (SURR) 1 1 0 VAR 3 (REAR) 1 1 1 FIX REC OUT ”R” 1 0 0 VAR 1(3BAND) 1 0 1 VAR 2 (SURR) 1 1 0 VAR 3 (REAR)

111 FIX

SRS SPACE CONTROL: ATTENUATION SELECTION MSB LSB SPACE ATTENUATION D7 D6 D5 D4 D3 D2 D1 D0 1 dB STEPS 000 0 001 - 1 010 - 2 011 - 3 100 - 4 101 - 5 110 - 6 111 - 7 8 dB STEPS 000 0 001 - 8 010 - 1 6 011 - 2 4 MUTE 1XXXXX X = DON’T CARE SPEAKER/RECORD ATTENUATION = 0dB ∼ -31dB SRS CENTER CONTROL: ATTENUATION SELECTION MSB LSB CENTER ATTENUATION D7 D6 D5 D4 D3 D2 D1 D0 1 dB STEPS 000 0 001 - 1 010 - 2 011 - 3 100 - 4 101 - 5 110 - 6 111 - 7 8 dB STEPS 000 0 001 - 8 010 - 1 6 011 - 2 4 MUTE 1XXXXX SRS INPUT

0 NO SURROUND SIGNAL

1 SURROUND SIGNAL

0 SRS ON

1 SRS OFF

X = DON’T CARE SPACE ATTENUATION = 0dB ∼ -31dB RECOMMENDED TO ATTENUATE -3dB IN INPUT ATTENUATION DURING ”SRS OFF” TO FULFILL SRS BYPASS MODE WHEN SRS FUNCTION IS USED TDA7464

SURROUND & OUT CONTROL+ EFFECT CONTROL OFF + FIX + MAX ATTENUATION SPEAKER/RECORD ATTENUATION L &R MODE MUTE + ZERO CROSS ATT.OFF INPUT ATTENUATION + REAR SWITCH MAX ATTENUATION + ON VOICE CANCELLER OFF INPUT IN1 MIX SWITCH NO MIX PIN SRS SURROUND OFF + MAX ATTENUATION BASS & MIDDLE 2dB TREBLE 0dB VS D96AU477 20µAGND GND 10Ω GND PINS: L-OUT, R-OUT, RECOUT-L, RECOUT-R 50K GND VS VREF D94AU200 20µA PIN:L-IN1, R-IN1, L-IN2, R-IN2, L-IN3, R-IN3, L-IN4, R-IN4, 5.5K 60K GND VS HP1 D94AU199 20µA 5.5K PIN:HP2 10K 60K GND VS LP1 HP2 D94AU198 PIN:HP1 PIN DESCRIPTION TDA7464

20µA GND PIN:SCL, SDA 10K VS D94AU211 20µA HP1 GND PIN:LP1 VS D96AU473 20µA GND PIN:NETW2 VS D95AU308 20µA GND PIN:PS1, PS2, PS3, PS4, LP 20µA VS 30K Vref D95AU227 SW GND PIN:VAR-L, VAR-R, 20K VS D95AU336 20µA20K GND 42K PIN:CREF TDA7464

20µA VS D95AU234 SWGND PIN:NBLIN, NBRIN 10K VS D95AU233A 20µA GND GND PIN:VOUT REF 25K VS D95AU309 20µA GND PIN:TREBLE-L, TREBLE-R 45K or 25K VS D95AU231A 20µA BASS-RO,MIDDLE-LO,MIDDLE-RO BASS-LO GND :Bass : MIDDLE PIN:BASS-LI,BASS-RI, MIDDLE-LI, MIDDLE-RI, VS D95AU230 20µA GND PIN:BASSO-L, BASSO-R, NETW1 (*) VS D95AU232 20µA BASS-LI,BASS-RI,MIDDLE-LI,MIDDLE-RI GND (*) 45K :Bass 25K : MIDDLE PIN:BASS-LO,BASS-RO, MIDDLE-LO, MIDDLE-RO, TDA7464

PIN:NBLO, NBRO TDA7464

A A1B Seating Plane C 2333 E D e K B TQFP44 L 0.10mm .004 DIM. mm inch A 1.60 0.063 A1 0.05 0.15 0.002 0.006 C 0.09 0.20 0.004 0.008 D 12.00 0.472 D1 10.00 0.394 D3 8.00 0.315 e 0.80 0.031 E 12.00 0.472 E1 10.00 0.394 E3 8.00 0.315 TDA7464

Information furnished is believed to be accurate and reliable. However, SGS-THOMSON Microelectronics assumes no responsibility for the consequences of use of such information nor for any infringement of patents or other rights of third parties which may result from its use. No license is granted by implication or otherwise under any patent or patent rights of SGS-THOMSON Microelectronics. Specification mentioned in this publication are subject to change without notice. This publication supersedes and replaces all information previously supplied. SGS-THOMSON Microelectronics products are not authorized for use as criticalcomponents in life support devices or systems without express written approval of SGS-THOMSON Microelectronics.  1998 SGS-THOMSON Microelectronics – Printed in Italy – All Rights Reserved The Sound Retrieval System and are registered trademarks of SRS Labs, Inc. SGS-THOMSON Microelectronics GROUP OF COMPANIES Australia - Brazil - Canada - China - France - Germany - Italy - Japan - Korea - Malaysia - Malta - Morocco - The Netherlands - Singapore - Spain - Sweden - Switzerland - Taiwan - Thailand - United Kingdom - U.S.A. TDA7464