TDA7464$

TDA7464 ® DIGITALLY CONTROLLED AUDIO PROCESSOR WITH SRS SURROUND SOUND AND VOICE CANCELLER The Device incorporates the SRS WOW Technology under licence from SRS Labs, Inc. September 2003 LPVC R_IN2 R_IN3 R_IN4 VS CREF PS3 PS4 PS2 PS1 LP R_IN1 2 32 VREFOUT HP2 3 31 L_IN1 NETW1 4 30 L_IN2 NETW2 5 29 L_IN3 VAR_L 6 28 L_IN4 BASSO_L 7 27 RECOUT_L VAR_R 8 26 RECOUT_R BASSO_R 9 25 L_OUT BASS_LO 10 24 R_OUT BASS_LI 11 23 DIG_GND SCL SDA 12 13 14 15 16 17 18 19 20 21 22 AGND DESCRIPTION The TDA7464 is a volume tone (bass middle and treble) balance (Left/Right) processors with stereo SRS and voice canceller for quality audio applications 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 matrix. The AC signal setting is obtained by resistor networks and switches combined with operational amplifiers according to the SRS laboratories 33 HP1 TREBLE_L O 1 TREBLE_R bs 44 43 42 41 40 39 38 37 36 35 34 LP1 MIDDLE_RI ol s b O PIN CONNECTION MIDDLE_RO ete Pr t e l o MIDDLE_LI od r P e ORDERING NUMBER: TDA7464 MIDDLE_LO t c u u d o BASS_RI ) (s ) s ( ct TQFP44 BASS_RO 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 FOR PROCESSES SIGNAL SELECTION - INDEPENDENT MUTE FUNCTION ALL FUNCTIONS PROGRAMMABLE VIA SERIAL BUS D96AU483C specification. Control of all the functions is accomplished by serial bus. Thanks to the used BIPOLAR/CMOS Technology, Low Distortion, Low Noise and DC stepping are obtained. 1/21 R-IN4 0.22µF R-IN3 0.22µF R-IN2 0.22µF R-IN1 0.22µF L-IN4 0.22µF L-IN3 0.22µF L-IN2 0.22µF L-IN1 0.22µF 37 36 35 33 28 29 30 31 50K 50K 50K 50K 50K 50K 50K 50K 31.5dB control 34 100nF LPVC 39 LPF - + VS RLP1 RHP1 3 1 31.5dB control 2 HP1 20 + + VOICE ON R6 38 SUPPLY + - R5 HP2 AGND LP1 22µF 32 VREF VREFOUT + + L-R 100K MIX SW + - + - MIX SW 4.7nF 42 22nF RPS3 41 32.4K 4.42K 0.47µF 130K 0.47µF 1K 4 CENTER NETW1 5 1.5K OFF MOVIE/ SIM PS3 400Hz NETW2 STEREO SRS EFFECT CONTROL MUSIC PS2 4KHz RPS2 PS3 44 LPF 9KHz 43 PS2 LP 1.2nF MOVIE/ MUSIC SIM PS1 90Hz RPS1 PS1 100nF PS4 400Hz RPS4 PS4 22nF 40 47.5K 3.74K SPACE SURR MIXING AMP MIXING AMP SRS FIX 4.7nF SRS 680nF FIX SURR TREBLE TREBLE 19 TREBLE-L 5.6nF 17 15 18 5.6nF TREBLE-R RM 16 MIDDLE MIDDLE RB 12 2.7K 18nF 22nF 5.6K 100nF 3BAND FIX MUTE REC ATT 79dB CONTROL 3BAND 100nF BASS-RO FIX BASSO-R 79dB CONTROL MUTE REC ATT 7 BASSO-L I2C BUS DECODER + LATCHES SURR REAR REAR BASS 13 RB 10 SURR BASS 11 BASS-LO 100nF BASS-LI 5.6K 22nF 100nF 14 RM 2.7K 18nF MIDDLE-LO MIDDLE-RO MIDDLE-LI MIDDLE-RI s b O t c u ) (s s b O t e l o r P e BASS-RI 2.2µF 9 6 2.2µF VAR-R 8 30K VAR FIX FIX VAR 30K VAR-L - CREF 2/21 d o r - + + P e t e l o 5.6nF N.B. SW MUTE 26 24 23 21 22 25 27 RECOUT-R R-OUT DIG_GND SDA SCL L-OUT RECOUT-L D96AU481D SPKR ATT 79dB CONTROL MUTE SPKR ATT 79dB CONTROL N.B. SW TDA7464 BLOCK DIAGRAM ) s ( ct u d o TDA7464 THERMAL DATA Symbol Rth j-pins Description Thermal Resistance Junction-pins Value Unit 85 °C/W Max. ABSOLUTE MAXIMUM RATINGS Symbol Parameter VS Tamb Operating Supply Voltage Tstg Storage Temperature Range Value 11 Unit V -10 to 85 °C -55 to +150 °C Operating Ambient Temperature QUICK REFERENCE DATA Symbol Parameter Typ. Max. Unit 9 10.2 V 0.01 0.1 % -31.5 0 dB dB dB -14 +14 dB -14 -14 +14 +14 dB dB 0 dB dB Supply Voltage 7 Max. input signal handling 2 THD Total Harmonic Distortion V = 1Vrms f = 1KHz S/N SC Signal to Noise Ratio V out = 1Vrms (mode = OFF) Channel Separation f = 1KHz Input Attenuation Control (0.5dB) Treble Control (2db step) ) (s Middle Control (2db step) Bass Control (2dB step) ete b O Balance Control 1dB step (LCH, RCH) Mute Attenuation Pr Vrms 106 90 -79 t c u d o r u d o Min. VS VCL l o s ) s ( ct 100 ELECTRICAL CHARACTERISTICS (refer to the test circuit Tamb = 25°C, VS = 9V, RL = 10KΩ, Vin = 1Vrms; RG = 600Ω, all controls flat (G = 0dB), Effect Ctrl = -6dB, MODE = OFF; f = 1KHz unless otherwise specified) P e Symbol t e l o SUPPLY Parameter VS IS Supply Voltage Supply Current SVR Ripple Rejection s b O Test Condition LCH / RCH out, Mode = OFF Min. Typ. Max. Unit 7 9 25 10.2 V mA 60 80 37.5 2 50 2.5 dB INPUT STAGE RIN VCL Input Resistance Clipping Level THD = 0.3% 62.5 KΩ Vrms ARANGE AVMIN Attenuation Range Min. Attenuation -1 31.5 0 1 dB dB AVMAX Max. Attenuation 31 31.5 32 dB ASTEP VDC AVO1 Step Resolution DC Steps Voice Canceller Output 1 -1 -3 0.5 0 1 3 dB mV 5 6 7 dB AVO2 Voice Canceller Output 2 -1 0 1 dB Adjacent att. step LIN = RIN, RIN = ON, Vmix = 0V FIX, 0dB attenuation LIN = RIN = 0V Vmix = 1Vrms FIX, 0dB attenuation 3/21 TDA7464 ELECTRICAL CHARACTERISTICS (continued) Symbol Parameter Test Condition Min. Typ. Max. Unit 5 6 7 dB 24 32 40 KΩ +12.0 +14.0 +16.0 dB 1 33 2 44 3 55 dB KΩ +12.0 +14.0 +16.0 dB SUPPLY AVO3 Voice Canceller Output 3 LIN = -RIN, Vmix = 0V FIX, 0dB attenuation RLPV Low Pass Filter Resistance BASS CONTROL Gb BSTEP RB Control Range Max. Boost/cut Step Resolution Internal Feedback Resistance ) s ( ct MIDDLE CONTROL Gm Control Range MSTEP RM Step Resolution Max. Boost/cut Internal Feedback Resistance TREBLE CONTROL Gt TSTEP Control Range Step Resolution Max. Boost/cut e t e ol s b O du 1 2 3 dB 18.75 25 31.25 KΩ +13.0 1 +14.0 2 +15.0 3 dB dB o r P 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 GOFF Parameter In-phase Gain (OFF) )- Test Condition Mode OFF, Input signal of 1kHz, 1.4 Vp-p, Rin → Rout Lin → Lout Min. -1 Typ. 0 Max. 1 Unit dB -1 0 1 dB s ( t c du DGOFF LR In-phase Gain Difference (OFF) Mode OFF, Input signal of 1kHz, 1.4 Vp-p Rin → Rout, Lin → Lout GMOV In-phase Gain (Movie) Movie mode, Effect Ctrl = -6dB Input signal of 1kHz, 1.4 Vp-p Rin → Rout, Lin → Lout 8 dB LR In-phase Gain Difference (Movie) Movie mode, Effect Ctrl = -6dB Input signal of 1kHz, 1.4 Vp-p (Rin → Rout) – (Lin → Lout) 0 dB GMUS In-phase Gain (Music) Music mode, Effect Ctrl = -6dB Input signal of 1kHz, 1.4 Vp-p (Rin → Rout), (Lin → Lout) 7 dB DGMUS LR In-phase Gain Difference (Music) 0 dB LMON1 Simulated L Output 1 Music mode, Effect Ctrl = -6dB Input signal of 1kHz, 1.4 Vp-p (Rin → Rout) - (Lin → Lout) Simulated Mode, Effect Ctrl = -6dB Input signal of 250Hz, 1.4 Vp-p, Rin and Lin → Lout 4.5 dB LMON2 Simulated L Output 2 Simulated Mode, Effect Ctrl = -6dB Input signal of 1kHz, 1.4 Vp-p, Rin and Lin → Lout – 4.0 dB LMON3 Simulated L Output 3 Simulated Mode, Effect Ctrl = -6dB Input signal of 3.6kHz, 1.4 Vp-p, Rin and Lin → Lout 7.0 dB e t e ol DGMOV s b O 4/21 o r P TDA7464 ELECTRICAL CHARACTERISTICS (continued) Symbol RMON1 Parameter Simulated R Output 1 RMON2 Simulated R Output 2 RMON3 Simulated R Output 3 RLP1 RHPI RLPF Test Condition Simulated Mode, Effect Ctrl = -6dB Input signal of 250Hz, 1.4 Vp-p, Rin and Lin →Rout Simulated Mode, Effect Ctrl = -6dB Input signal of 1kHz, 1.4 Vp-p, Rin and Lin →Rout Simulated Mode, Effect Ctrl = -6dB Input signal of 3.6kHz, 1.4 Vp-p, Rin and Lin → Rout Low Pass Filter Resistance High Pass Filter Resistance LP Pin Impedance Min. 7.5 45 7.5 Typ. – 4.5 Control Range Step Resolution dB – 20 dB 10 60 10 RPS10 RPS11 RPS12 RPS13 RPS20 RPS21 RPS22 RPS23 RPS30 RPS31 RPS32 RPS33 RPS40 RPS41 RPS42 RPS43 KΩ KΩ KΩ -6 dB dB 14.8 17.6 22.4 46.6 7 8.5 10.5 22.9 15.1 18.1 22.6 48.9 15.1 18.1 22.6 48.9 KΩ KΩ KΩ KΩ KΩ KΩ KΩ KΩ KΩ KΩ KΩ KΩ KΩ KΩ KΩ KΩ 0 dB 0 dB dB 1 Phase Shifter 1: D1 = 0, D0 = 0 Phase Shifter 1: D1 = 0, D0 = 1 Phase Shifter 1: D1 = 1, D0 = 0 Phase Shifter 1: D1 = 1, D0 = 1 Phase Shifter 2: D3 = 0, D2 = 0 Phase Shifter 2: D3 = 0, D2 = 1 Phase Shifter 2: D3 = 1, D2 = 0 Phase Shifter 2: D3 = 1, D2 = 1 Phase Shifter 3: D5 = 0, D4 = 0 Phase Shifter 3: D5 = 0, D4 = 1 Phase Shifter 3: D5 = 1, D4 = 0 Phase Shifter 3: D5 = 1, D4 = 1 Phase Shifter 4: D7 = 0, D6 = 0 Phase Shifter 4: D7 = 0, D6 = 1 Phase Shifter 4: D7 = 1, D6 = 0 Phase Shifter 4: D7 = 1, D6 = 1 e t e ol ) (s s b O t c u d o r P e t e l o s b O 12.5 75 12.5 ) s ( ct du - 21 SURROUND SOUND MATRIX PHASE o r P 8.8 10.6 13.4 28 4.2 5.1 6.3 13.7 9 10.9 13.6 29.3 9 10.9 13.6 29.3 Unit dB 3.8 STANDARD SURROUND SOUND EFFECT CONTROL CRANGE SSTEP Max. 11.8 14.1 17.9 37.3 5.6 6.8 8.4 18.3 12.1 14.5 18.1 39.1 12.1 14.5 18.1 39.1 SRS SURROUND SOUND MATRIX CENTER SRS Control Range StepC SPACE Center Step Resolution SRS Space Control Range StepS PERSP1 Space Step Resolution Perspective 1 PERSP2 Perspective 2 L+R L+ R SRS Curve L, R L, R SRS Curve -31 1 -31 1 12 dB dB Input Signal of 2.15KHz SPACE = 0dB, CENTER = MUTE Rin = GND; Lin → ROUT 0 dB SPACE = MUTE, CENTER =0dB Rin = GND; Lin → ROUT SPACE = MUTE, CENTER = MUTE Rin = GND; Lin → LOUT Lin = GND; Rin → ROUT -8.5 dB -13.4 dB Input Signal of 125Hz SPACE = 0dB, CENTER = MUTE Rin = GND; Lin → ROUT 5/21 TDA7464 ELECTRICAL CHARACTERISTICS (continued) Symbol Parameter Test Condition Min. Typ. Max. Unit SPEAKER & RECORD ATTENUATORS Crange Control Range SSTEP Step Resolution 79 Attenuation set error EA Av = 0 to -20dB DC Steps VDC 1 1.5 dB dB -1.5 0 1.5 Av = -20 to -79dB -3 0 2 dB Adjacent att. steps -3 0 3 mV 70 100 22.5 30 37.5 KΩ Output Mute Condition AMUTE RVAR dB 0.5 Input Impedance dB ) s ( ct SPEAKER ATTENUATORS VTH Zero CrossingThreshold D7 = 0 VS AUDIO OUTPUTS NO(OFF) Output Noise (OFF) Output Mute, Flat BW = 20Hz to 20KHz NO(MOV) Output Noise (Movie) Standard Surround Sound Mode = Movie , BW = 20Hz to 20KHz NO(MUS) Output Noise (Music) Standard Surround Sound Mode = Music , BW = 20Hz to 20KHz, NO(SIM) Output Noise (Simulated) Standard Surround Sound NO(SRS) d Output Noise (SRS) Surround Sound Distorsion Mode = Simulated, BW = 20Hz to 20KHz BW = 20Hz to 20KHz SC Channel Separation Clipping Level VOUT DC Voltage Level VIL VIH e t e l o s b 6/21 IIN VO O ) Av = 0 ; Vin = 1Vrms d = 0.3% Output Resistance BUS INPUTS O u d o VOCL ROUT mV 4 5 µVrms µVrms 30 µVrms 30 µVrms 30 µVrms 50 µVrms 0.01 0.1 90 dB 2 2.5 Vrms 30 50 3.8 Input Low Voltage Input High Voltage -5 Ω V 1 V V +5 0.4 µA V 3 IO = 1.6mA % 70 10 Pr Input Current Output Voltage SDA Acknowledge e t e l Pr o s b s ( t c + 20 u d o 2 TDA7464 I2C BUS INTERFACE Data transmission from microprocessor to the TDA7464 and viceversa takes place through the 2 wires I2C BUS interface, consisting of the two lines SDA and SCL (pull-up resistors to positive supply voltage must be connected). Data Validity As shown in fig. 3, the data on the SDA line must be stable during the high period of the clock. The HIGH and LOW state of the data line can only change when the clock signal on the SCL line is LOW. Start and Stop Conditions As shown in fig.4 a start condition is a HIGH to LOW transition of the SDA line while SCL is HIGH. The stop condition is a LOW to HIGH transition of the SDA line while SCL is HIGH. Byte Format Every byte transferred on the SDA line must contain 8 bits. Each byte must be followed by an acFigure 3: Data Validity on the I2CBUS ) (s knowledge bit. The MSB is transferred first. Acknowledge The master (µP) puts a resistive HIGH level on the SDA line during the acknowledge clock pulse (see fig. 5). The peripheral (audioprocessor) that acknowledges has to pull-down (LOW) the SDA line during this clock pulse. The audioprocessor which has been addressed has to generate an acknowledge after the reception of each byte, otherwise the SDA line remains at the HIGH level during the ninth clock pulse time. In this case the master transmitter can generate the STOP information in order to abort the transfer. ) s ( ct u d o Transmission without Acknowledge Avoiding to detect the acknowledge of the audioprocessor, the µP can use a simpler transmission: simply it waits one clock without checking the slave acknowledging, and sends the new data. This approach of course is less protected from misworking. r P e t e l o s b O t c u d o r P e t e l o Figure 4: Timing Diagram of I2CBUS s b O Figure 5: Acknowledge on the I2CBUS 7/21 TDA7464 address A subaddress bytes A sequence of data (N byte + achnowledge) A stop condition (P) SOFTWARE SPECIFICATION Interface Protocol The interface protocol comprises: A start condition (S) A chip address byte, containing the TDA7464 SUBADDRESS CHIP ADDRESS MSB S 1 LSB 0 0 0 0 0 A 0 MSB ACK DATA 1 to DATA n LSB B MSB DATA ACK LSB DATA ACK ) s ( ct D95AU226A u d o ACK = Achnowledge S = Start P = Stop A = Address B = Auto Increment r P e EXAMPLES No Incremental Bus The TDA7464 receives a start condition, the cor- ) (s MSB 1 0 0 0 0 e t e ol D95AU306 Pr 0 t c u od CHIP ADDRESS S A LSB 0 ACK 0 X LSB 0 0 8/21 0 0 MSB X D3 D2 D1 D0 ACK A 0 MSB ACK 1 X ACK P 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. DATA 1 to DATA n LSB X LSB DATA SUBADDRESS MSB D95AU307 DATA LSB X CHIP ADDRESS 0 s b O rect chip address, a subaddress with the MSB = 0 (no incremental bus), N-data (all these data concern the subaddress selected), a stop condition. MSB s b O 1 t e l o SUBADDRESS Incremental Bus The TDA7464 receives a start condition, the correct chip address, a subaddress with the MSB = 1 (incremental bus): now it is in a loop condition with an autoincrease of the subaddress whereas S P X D3 D2 D1 D0 ACK MSB LSB DATA ACK P TDA7464 DATA BYTES (Address = 80(HEX)): FUNCTION SELECTION: The first byte (subaddress) MSB LSB SUBADDRESS D7 B D6 X D5 X D4 X D3 0 D2 0 D1 0 D0 0 B X X X 0 0 0 1 B X X X 0 0 1 0 SURROUND & OUT & EFFECT CONTROL 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 B X X X X X X 0 0 1 1 1 1 0 1 SPEAKER ATTENUATION "R" RECORD ATTENUATION "L" B B X X X X X X 1 1 0 0 0 0 0 1 RECORD ATTENUATION"R" INPUT MULTIPLEXER, VOICE CANCELLER & REC OUT B X X X 1 0 1 0 B X X X 1 0 1 B = 1 INCREMENTAL BUS; ACTIVE B = 0 NO INCREMENTAL BUS; X = DON’T CARE ) (s INPUT ATTENUATION SELECTION t c u MSB D7 D6 1 1 1 1 1 1 1 1 D5 D4 D3 d o r P e t e l o s b O 1 1 1 1 1 1 1 1 0 0 0 0 1 1 1 1 0 0 1 1 0 0 1 1 0 1 0 1 0 1 0 1 INPUT ATTENUATION u d o r P e t e l o 1 ) s ( ct SRS / SPACE ATTENUATION SRS / CENTER ATTENUATION s b O D2 0 0 0 0 1 1 1 1 D1 0 0 1 1 0 0 1 1 LSB INPUT ATTENUATION D0 0 1 0 1 0 1 0 1 0.5 dB STEPS 0 -0.5 -1 -1.5 -2 -2.5 -3 -3.5 4 dB STEPS 0 -4 -8 -12 -16 -20 -24 -28 INPUT ATTENUATION = 0 ∼ -31.5dB 9/21 TDA7464 STANDARD SURROUND SELECTION MSB D7 LSB D6 D5 D4 D3 D2 D1 0 0 1 1 D0 0 1 0 1 0 1 0 0 0 0 0 0 0 0 1 1 1 1 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 0 0 1 1 0 0 1 1 0 0 1 1 0 0 1 1 od MSB D7 D6 e t e ol Pr D5 D4 s b O 0 0 1 1 0 0 1 1 10/21 0 1 0 1 ) (s t c u PHASE RESISTOR SELECTION 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 SURROUND MODE SIMULATED MUSIC OFF MOVIE OUT VAR FIX EFFECT CONTROL -6 -7 -8 -9 -10 -11 -12 -13 -14 -15 -16 -17 -18 -19 -20 -21 ) s ( ct u d o r P e t e l o s b O LSB D3 D2 0 0 1 1 0 1 0 1 D1 0 0 1 1 D0 0 1 0 1 SURROUND PHASE RESISTOR PHASE SHIFT 1 (KΩ) 12 14 18 37 PHASE SHIFT 2 (KΩ) 6 7 8 18 PHASE SHIFT 3 (KΩ) 12 14 18 39 PHASE SHIFT 4 (KΩ) 12 14 18 39 TDA7464 BASS SELECTION MSB D7 D6 D5 D4 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 D3 0 0 0 0 0 0 0 0 1 1 1 1 1 1 1 1 ) (s D2 0 0 0 0 1 1 1 1 1 1 1 1 0 0 0 0 D1 0 0 1 1 0 0 1 1 1 1 0 0 1 1 0 0 LSB BASS D0 0 1 0 1 0 1 0 1 1 0 1 0 1 0 1 0 2 dB STEPS -14 -12 -10 -8 -6 -4 -2 0 0 2 4 6 8 10 12 14 u d o r P e t e l o ) s ( ct s b O t c u d o r P e t e l o s b O 11/21 TDA7464 MIDDLE & TREBLE SELECTION MSB D7 D6 D5 D4 0 0 0 0 0 0 0 1 0 0 0 0 0 1 1 1 0 0 1 0 0 1 0 0 0 1 1 1 1 1 1 s b O e t e ol 1 1 1 1 12/21 1 1 1 1 0 0 0 0 od MIDDLE D3 0 D2 0 D1 0 D0 0 2 dB STEPS -14 0 0 0 1 -12 0 0 1 0 -10 0 0 1 1 -8 0 0 1 1 0 0 0 1 -6 -4 0 1 1 0 -2 0 1 1 1 1 1 1 1 0 0 1 1 1 0 2 1 1 0 1 1 1 0 0 1 1 0 0 1 1 1 0 1 0 0 1 0 0 ) (s t c u LSB b O so e t e l 1 0 ) s ( ct du 4 o r P 6 8 10 12 14 TREBLE 2 dB STEPS -14 -12 -10 -8 -6 1 -4 0 1 -2 0 1 1 0 0 1 0 1 0 0 2 4 6 1 1 0 0 1 0 1 0 8 10 12 14 Pr 1 1 TDA7464 LEFT CHANNEL SPEAKER ATTENUATION SELECTION MSB D7 D6 D5 D4 D3 0 0 0 0 0 0 0 0 1 1 0 0 0 0 1 1 1 1 0 0 0 0 1 1 0 0 1 1 0 0 0 1 0 1 0 1 0 1 0 1 1 1 0 1 1 X X X ) (s LEFT & RIGHT CHANNELS BOTH ct MSB D7 0 1 D6 u d o D5 r P e D4 D3 D2 0 0 0 0 1 1 1 1 LSB SPEAKER/RECORD ATT D0 0 1 0 1 0 1 0 1 1 dB STEPS 0 -1 -2 -3 -4 -5 -6 -7 8 dB STEPS 0 -8 -16 -24 -32 -40 -48 -56 -64 -72 MUTE D1 0 0 1 1 0 0 1 1 ) s ( ct u d o r P e t e l o s b O D2 D1 LSB ZERO CROSS ATT. MODE D0 1 dB STEPS ON OFF X = DON’T CARE SPEAKER/RECORD ATTENUATION = 0dB ∼ -79dB t e l o s b O 13/21 TDA7464 RECORD AND RIGHT CHANNEL SPEAKER ATTENUATION SELECTION MSB D7 D6 D5 D4 D3 0 0 0 0 0 0 0 0 1 1 0 0 0 0 1 1 1 1 0 0 0 0 1 1 0 0 1 1 0 0 0 1 0 1 0 1 0 1 0 1 1 1 0 1 1 X X X ) (s D2 0 0 0 0 1 1 1 1 LSB SPEAKER/RECORD ATT D0 0 1 0 1 0 1 0 1 1 dB STEPS 0 -1 -2 -3 -4 -5 -6 -7 8 dB STEPS 0 -8 -16 -24 -32 -40 -48 -56 -64 -72 MUTE D1 0 0 1 1 0 0 1 1 ) s ( ct u d o r P e t e l o s b O X = DON’T CARE SPEAKER/RECORD ATTENUATION = 0dB ∼ -79dB t c u VOICE CANCELLER/INPUT/RECOUT L & R SELECTION od MSB D7 1 1 1 1 1 1 D6 e t e ol Pr D5 s b O 1 1 1 1 1 1 1 1 14/21 0 0 1 1 0 1 0 1 LSB D4 D3 D2 D1 0 0 1 1 0 1 0 1 0 0 1 1 0 1 0 1 0 0 1 1 0 1 0 1 D0 0 1 VOICE CANCELLER OFF ON INPUT MULTIPLEXER IN_2 IN_3 IN_4 IN_1 REC OUT "L" VAR 1 (3BAND) VAR 2 (SURR) VAR 3 (REAR) FIX REC OUT "R" VAR 1(3BAND) VAR 2 (SURR) VAR 3 (REAR) FIX TDA7464 SRS SPACE CONTROL: ATTENUATION SELECTION MSB D7 D6 D5 D4 D3 0 0 0 0 0 0 1 1 0 1 0 1 1 X X D2 0 0 0 0 1 1 1 1 X SRS CENTER CONTROL: ATTENUATION SELECTION D7 D6 D5 D4 D3 ) (s t c u d o r P e t e l o s b O 0 1 0 1 0 0 0 0 0 0 1 1 0 1 0 1 1 X X SPACE ATTENUATION D0 0 1 0 1 0 1 0 1 1 dB STEPS 0 -1 -2 -3 -4 -5 -6 -7 8 dB STEPS 0 -8 -16 -24 MUTE ) s ( ct X t e l o s b O u d o r P e X X = DON’T CARE SPEAKER/RECORD ATTENUATION = 0dB ∼ -31dB MSB LSB D1 0 0 1 1 0 0 1 1 LSB CENTER ATTENUATION 1 dB STEPS 0 -1 -2 -3 -4 -5 -6 -7 8 dB STEPS 0 -8 -16 -24 MUTE D2 0 0 0 0 1 1 1 1 D1 0 0 1 1 0 0 1 1 D0 0 1 0 1 0 1 0 1 X X X SRS INPUT NO SURROUND SIGNAL SURROUND SIGNAL SRS SWITCH SRS ON 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 15/21 TDA7464 POWER ON RESET SURROUND & OUT CONTROL+ EFFECT CONTROL OFF + FIX + MAX ATTENUATION SPEAKER/RECORD ATTENUATION L &R MODE INPUT ATTENUATION + REAR SWITCH MUTE + ZERO CROSS ATT.OFF MAX ATTENUATION + ON VOICE CANCELLER INPUT OFF IN1 MIX SWITCH NO MIX PIN SRS SURROUND OFF + MAX ATTENUATION BASS & MIDDLE TREBLE 2dB 0dB ) s ( ct u d o PIN DESCRIPTION PINS: L-OUT, R-OUT, RECOUT-L, RECOUT-R t e l o VS bs e t e l D96AU477 u d o Pr 10K 60K HP2 GND D94AU198 GND o s b PIN: HP2 VS s ( t c GND 20µA LP1 O ) 10Ω GND r P e PIN: HP1 PIN: L-IN1, R-IN1, L-IN2, R-IN2, L-IN3, R-IN3, L-IN4, R-IN4, O VS VS 20µA 20µA 5.5K 60K HP1 GND 5.5K D94AU199 16/21 50K GND VREF D94AU200 TDA7464 PIN: VAR-L, VAR-R, PIN: CREF VS VS 20µA 42K SW 30K 20K GND Vref GND t e l o VS 20µA ) (s s b O 20µA t c u d o r 10K HP1 u d o r P e PIN: SCL, SDA PIN: LP1 ) s ( ct D95AU336 D95AU227 GND 20µA 20K P e t e l o GND D94AU205 D94AU211 s b O PIN: PS1, PS2, PS3, PS4, LP PIN: NETW2 VS VS 20µA 20µA GND GND D96AU473 D95AU308 17/21 TDA7464 PIN: BASSO-L, BASSO-R, NETW1 PIN: BASS-LI, BASS-RI, MIDDLE-LI, MIDDLE-RI, VS VS 20µA 20µA 45K : Bass or 25K : MIDDLE GND BASS-LO D95AU230 PIN: BASS-LO, BASS-RO, MIDDLE-LO, MIDDLE-RO, 20µA u d o BASS-LI,BASS-RI,MIDDLE-LI,MIDDLE-RI r P e (*) 45K : Bass 25K : MIDDLE t e l o s b O 20µA 25K GND D95AU232 let D95AU309 PIN: VOUT REF O r P e PIN: TREBLE-L, TREBLE-R ct (*) GND ) (s D95AU231A u d o VS VS o s b ) s ( ct BASS-RO,MIDDLE-LO,MIDDLE-RO GND PIN: NBLIN, NBRIN VS VS 20µA 20µA GND D95AU233A 10K GND 18/21 GND D95AU234 SW TDA7464 PIN: NBLO, NBRO VS VREF ) s ( ct GND D95AU235A u d o r P e t e l o ) (s s b O t c u d o r P e t e l o s b O 19/21 TDA7464 mm DIM. MIN. TYP. A inch MAX. MIN. TYP. 1.60 A1 0.05 A2 1.35 B 0.30 C 0.09 0.063 0.15 0.002 0.006 1.40 1.45 0.053 0.055 0.057 0.37 0.45 0.012 0.014 0.018 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 L 0.45 0.60 0.75 OUTLINE AND MECHANICAL DATA MAX. 0.018 0.024 L1 1.00 K 0°(min.), 3.5˚(typ.), 7°(max.) ) s ( ct u d o t e l o TQFP44 (10 x 10) 0.030 0.039 ) (s s b O t c u D D1 r P e od 0.10mm .004 Seating Plane E1 s b O 22 B ol 23 34 B 33 A1 E ete Pr A A2 12 44 11 1 C L e K TQFP4410 20/21 TDA7464 ) s ( ct u d o r P e t e l o ) (s s b O t c u d o r P e t e l o s b O Information furnished is believed to be accurate and reliable. However, STMicroelectronics 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 STMicroelectronics. Specifications mentioned in this publication are subject to change without notice. This publication supersedes and replaces all information previously supplied. STMicroelectronics products are not authorized for use as critical components in life support devices or systems without express written approval of STMicroelectronics. The ST logo is a registered trademark of STMicroelectronics. All other names are the property of their respective owners © 2003 STMicroelectronics - All rights reserved The Sound Retrieval System and are registered trademarks of SRS Labs, Inc. STMicroelectronics GROUP OF COMPANIES Australia – Belgium - Brazil - Canada - China – Czech Republic - Finland - France - Germany - Hong Kong - India - Israel - Italy - Japan Malaysia - Malta - Morocco - Singapore - Spain - Sweden - Switzerland - United Kingdom - United States www.st.com 21/21