TDA7466$

TDA7466 ® DIGITALLY CONTROLLED AUDIO PROCESSOR WITH SRS SURROUND SOUND AND VOICE CANCELLER The Device incorporates the SRS WOW Technology under licence from SRS Labs, Inc. ) s ( t c u d o ) r s ( P t c e t u e d l o o r s P b e O t e l ) o s ( s t b c u O d o ) r s P ( t c e t u e l d o o r s P b O e t e l o s b O 1 STEREO INPUT 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 - AVAILABILITY OF LOUDSPEAKERS EQUALIZATION FIXED BY EXTERNAL COMPONENTS - 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 DESCRIPTION The TDA7466 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 specification. Control of all the functions is ac- September 2003 SDIP42 ORDERING NUMBER: TDA7466 PIN CONNECTION VS PS4 PS3 PS2 PS1 LP LP1 HP1 HP2 VAR_L BASSO_L VAR_R BASSO_R BASS_LO BASS_LI BASS_RO BASS_RI MIDDLE_LO MIDDLE_LI MIDDLE_RO MIDDLE_RI 42 41 40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25 24 23 22 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 CREF NBRO NBRIN LPVC R_IN VREFOUT L_IN NBLIN NBLO NETW2 NETW1 RECOUT_L RECOUT_R L_OUT R_OUT DIG_GND SCL SDA AGND TREBLE_L TREBLE_R D96AU445A complished by serial bus. Thanks to the used BIPOLAR/CMOS Technology, Low Distortion, Low Noise and DC stepping are obtained. 1/21 100K L-IN R-IN 0.22µF 0.22µF 38 36 50K 50K 31.5dB control 100nF LPVC 39 LPF - + 1 VS RLP1 RHP1 9 7 31.5dB control 8 HP1 24 + + VOICE ON 42 SUPPLY + - R6 R5 HP2 22µF 37 VREF VREFOUT LP1 AGND + + 100K + - + - MIX SW L-R 32.4K 4.42K 0.47µF 130K 0.47µF 1K 33 CENTER NETW2 32 1.5K OFF MOVIE/ SIM PS3 400Hz RPS3 3 NETW1 STEREO SRS EFFECT CONTROL MUSIC PS2 4KHz RPS2 4 PS3 6 LPF 9KHz 5 PS2 22nF LP 1.2nF MOVIE/ MUSIC SIM PS1 90Hz RPS1 PS1 4.7nF 2 47.5K 3.74K SPACE 21 5.6nF 4.7nF 18 2.7K 18nF 22nF REAR 3BAND FIX 5.6K 100nF REAR 3BAND BASS-RO 100nF RB 16 SURR FIX BASSO-R 79dB CONTROL MUTE REC ATT MUTE REC ATT 11 BASSO-L 79dB CONTROL I2C BUS DECODER + LATCHES BASS 17 RB 14 SURR BASS 15 BASS-LO 100nF BASS-LI 5.6K 22nF 100nF RM 20 MIDDLE TREBLE 22 MIDDLE TREBLE-R FIX 19 RM 2.7K 18nF TREBLE 23 TREBLE-L 5.6nF SURR SURR MIXING AMP MIXING AMP SRS FIX PS4 400Hz RPS4 PS4 22nF SRS 100nF MIDDLE-LO MIDDLE-RO MIDDLE-LI MIDDLE-RI 680nF BASS-RI 2.2µF 13 10 2.2µF NB-RA VAR-R 12 30K VAR FIX FIX VAR 30K 35 VAR-L NB-LA NB2 NB3 NBRIN 40 - + 34 NBLIN - 2/21 + ) s ( t c u d o ) r s ( P t c e t u e d l o o r s P b e O t e l ) o s ( s t b c u O d o ) r s P ( t c e t u e l d o o r s P b O e t e l o s b O 5.6nF NB1 41 NB4 NB-RB NBRO MUTE 30 28 27 25 26 29 31 RECOUT-R R-OUT DIG_GND SDA SCL L-OUT RECOUT-L D96AU446B SPKR ATT 79dB CONTROL MUTE SPKR ATT 79dB CONTROL NBLO NB-LB TDA7466 BLOCK DIAGRAM CREF TDA7466 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 ) s ( t c u d o ) r s ( P t c e t u e d l o o r s P b e O t e l ) o s ( s t b c u O d o ) r s P ( t c e t u e l d o o r s P b O e t e l o s b O QUICK REFERENCE DATA Symbol Min. Typ. Max. Unit VS VCL Supply Voltage Parameter 7 9 10.2 V Max. input signal handling 2 THD Total Harmonic Distortion V = 1Vrms f = 1KHz 0.01 0.1 % S/N SC Signal to Noise Ratio V out = 1Vrms (mode = OFF) Channel Separation f = 1KHz Input Attenuation Control (0.5dB) 106 90 -31.5 0 dB dB dB -14 +14 dB Middle Control (2db step) Bass Control (2dB step) -14 -14 +14 +14 dB dB Balance Control 1dB step (LCH, RCH) Mute Attenuation -79 0 dB dB Treble Control (2db step) Vrms 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) Symbol Parameter Test Condition Min. Typ. Max. Unit 7 9 25 10.2 V mA 60 80 37.5 2 50 2.5 1 SUPPLY VS IS Supply Voltage Supply Current SVR Ripple Rejection LCH / RCH out, Mode = OFF 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 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 dB dB 3/21 TDA7466 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 RLPV Low Pass Filter Resistance LIN = -RIN, Vmix = 0V FIX, 0dB attenuation BASS CONTROL Gb BSTEP RB Control Range Max. Boost/cut Step Resolution Internal Feedback Resistance ) s ( t c u d o ) r s ( P t c e t u e d l o o r s P b e O t e l ) o s ( s t b c u O d o ) r s P ( t c e t u e l d o o r s P b O e t e l o s b O MIDDLE CONTROL Gm MSTEP RM Control Range Max. Boost/cut Step Resolution Internal Feedback Resistance 1 2 3 dB 18.75 25 31.25 KΩ +13.0 1 +14.0 2 +15.0 3 dB dB TREBLE CONTROL Gt TSTEP Control Range Step Resolution Max. Boost/cut 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 DGOFF LR In-phase Gain Difference (OFF) Mode OFF, Input signal of 1kHz, 1.4 Vp-p Rin → Rout, Lin → Lout -1 0 1 dB GMOV In-phase Gain (Movie) Movie mode, Effect Ctrl = -6dB Input signal of 1kHz, 1.4 Vp-p Rin → Rout, Lin → Lout 8 dB DGMOV 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 4/21 TDA7466 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 Max. Unit dB 3.8 dB – 20 dB 10 60 10 12.5 75 12.5 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 dB 0 dB dB ) s ( t c u d o ) r s ( P t c e t u e d l o o r s P b e O t e l ) o s ( s t b c u O d o ) r s P ( t c e t u e l d o o r s P b O e t e l o s b O STANDARD SURROUND SOUND EFFECT CONTROL CRANGE SSTEP Control Range Step Resolution - 21 1 SURROUND SOUND MATRIX PHASE RPS10 RPS11 RPS12 RPS13 RPS20 RPS21 RPS22 RPS23 RPS30 RPS31 RPS32 RPS33 RPS40 RPS41 RPS42 RPS43 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 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 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 StepC SRS Control Range Center Step Resolution SPACE StepS SRS Space Control Range Space Step Resolution PERSP1 Perspective 1 PERSP2 Perspective 2 L+R L+ R SRS Curve -31 1 -31 1 Input Signal of 125Hz SPACE = 0dB, CENTER = MUTE Rin = GND; Lin → ROUT Input Signal of 2.15KHz SPACE = 0dB, CENTER = MUTE Rin = GND; Lin → ROUT SPACE = MUTE, CENTER =0dB Rin = GND; Lin → ROUT 12 dB 0 dB -8.5 dB 5/21 TDA7466 ELECTRICAL CHARACTERISTICS (continued) Symbol Parameter Test Condition Min. Typ. Max. Unit SPEAKER & RECORD ATTENUATORS Crange Control Range SSTEP EA Step Resolution VDC 79 Attenuation set error Av = 0 to -20dB DC Steps Av = -20 to -79dB Adjacent att. steps AMUTE Output Mute Condition RVAR Input Impedance dB 0.5 1 1.5 dB -1.5 0 1.5 dB -3 -3 0 0 2 3 dB mV 70 100 22.5 30 dB 37.5 KΩ ) s ( t c u d o ) r s ( P t c e t u e d l o o r s P b e O t e l ) o s ( s t b c u O d o ) r s P ( t c e t u e l d o o r s P b O e t e l o s b O SPEAKER ATTENUATORS VTH Zero CrossingThreshold D7 = 0 VS + 20 2 mV 4 5 30 µVrms µVrms µVrms AUDIO OUTPUTS NO(OFF) Output Noise (OFF) NO(MOV) Output Noise (Movie) Standard Surround Sound Output Mute, Flat BW = 20Hz to 20KHz Mode =Movie , BW = 20Hz to 20KHz NO(MUS) Output Noise (Music) Standard Surround Sound Mode = Music , BW = 20Hz to 20KHz, 30 µVrms NO(SIM) Output Noise (Simulated) Standard Surround Sound Mode = Simulated, BW = 20Hz to 20KHz 30 µVrms NO(SRS) Output Noise (SRS) Surround Sound BW = 20Hz to 20KHz 50 µVrms Distorsion Av = 0 ; Vin = 1Vrms d SC VOCL Channel Separation ROUT VOUT Output Resistance DC Voltage Level Clipping Level d = 0.3% 0.01 70 90 2 2.5 10 30 3.8 0.1 % dB Vrms 50 Ω V 1 V V +5 µA 0.4 V BUS INPUTS 6/21 VIL VIH Input Low Voltage Input High Voltage 3 IIN Input Current -5 VO Output Voltage SDA Acknowledge IO = 1.6mA TDA7466 I2C BUS INTERFACE Data transmission from microprocessor to the TDA7466 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. 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 ( t c u d o ) r s ( P t c e t u e d l o o r s P b e O t e l ) o s ( s t b c u O d o ) r s P ( t c e t u e l d o o r s P b O e t e l o s b O 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 ac- 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. Figure 3: Data Validity on the I2CBUS Figure 4: Timing Diagram of I2CBUS Figure 5: Acknowledge on the I2CBUS 7/21 TDA7466 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 TDA7466 SUBADDRESS CHIP ADDRESS MSB S 1 LSB 0 0 0 0 0 A 0 MSB ACK DATA 1 to DATA n LSB B DATA MSB ACK LSB DATA ACK P ) s ( t c u d o ) r s ( P t c e t u e d l o o r s P b e O t e l ) o s ( s t b c u O d o ) r s P ( t c e t u e l d o o r s P b O e t e l o s b O D95AU226A ACK = Achnowledge S = Start P = Stop A = Address B = Auto Increment EXAMPLES No Incremental Bus The TDA7466 receives a start condition, the cor- CHIP ADDRESS SUBADDRESS MSB S 1 LSB 0 0 0 0 0 rect chip address, a subaddress with the MSB = 0 (no incremental bus), N-data (all these data concern the subaddress selected), a stop condition. A 0 MSB ACK 0 DATA LSB X X MSB X D3 D2 D1 D0 ACK LSB DATA ACK P D95AU306 Incremental Bus The TDA7466 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 CHIP ADDRESS SUBADDRESS MSB S 1 LSB 0 0 0 D95AU307 8/21 0 0 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. A 0 MSB ACK 1 DATA 1 to DATA n LSB X X X D3 D2 D1 D0 ACK MSB LSB DATA ACK P TDA7466 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 & NATURAL BASE INPUT ATTENUATION ) s ( t c u d o ) r s ( P t c e t u e d l o o r s P b e O t e l ) o s ( s t b c u O d o ) r s P ( t c e t u e l d o o r s P b O e t e l o s b O B X X X 0 1 0 0 B X X X 0 1 0 1 MIDDLE & TREBLE 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 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 = DONT’CARE INPUT ATTENUATION SELECTION MSB D7 D6 1 1 1 1 1 1 1 1 D5 D4 D3 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 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 TDA7466 STANDARD SURROUND SELECTION MSB D7 LSB D6 D5 D4 D3 D2 D1 0 0 1 1 D0 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 ( t c u d o ) r s ( P t c e t u e d l o o r s P b e O t e l ) o s ( s t b c u O d o ) r s P ( t c e t u e l d o o r s P b O e t e l o s b O 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 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 PHASE RESISTOR SELECTION MSB D7 LSB D6 D5 0 0 1 1 0 0 1 1 10/21 0 1 0 1 D4 0 1 0 1 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 TDA7466 BASS SELECTION MSB D7 D6 D5 D4 D3 0 0 0 0 0 0 0 0 1 1 1 1 1 1 1 1 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 NATURAL BASE NBRIN, NBRO, NBLIN, NBLO PIN ACTIVE NO NBRIN, NBRO, NBLIN, NBLO PIN ) s ( t c u d o ) r s ( P t c e t u e d l o o r s P b e O t e l ) o s ( s t b c u O d o ) r s P ( t c e t u e l d o o r s P b O e t e l o s b O 0 1 When external components aren’t connected, the data from NATURAL BASE must put "OFF" 11/21 TDA7466 MIDDLE & TREBLE SELECTION MSB D7 D6 D5 D4 LSB 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 ) s ( t c u d o ) r s ( P t c e t u e d l o o r s P b e O t e l ) o s ( s t b c u O d o ) r s P ( t c e t u e l d o o r s P b O e t e l o s b O 0 1 1 1 1 1 1 1 0 0 1 1 1 0 2 1 1 0 1 4 1 1 0 0 6 1 1 0 0 1 1 1 0 8 10 1 0 0 1 12 1 0 0 0 14 TREBLE 2 dB STEPS 0 0 0 0 0 0 0 1 -14 -12 0 0 0 0 0 1 1 1 0 0 1 0 -10 -8 -6 0 1 0 1 -4 0 0 1 1 1 1 0 1 -2 0 1 1 1 1 1 1 1 1 1 1 0 0 1 0 1 0 0 2 4 6 1 1 1 1 0 0 0 0 1 1 0 0 1 0 1 0 8 10 12 14 12/21 TDA7466 LEFT CHANNEL SPEAKER ATTENUATION SELECTION MSB D7 D6 D5 D4 D3 D2 0 0 0 0 1 1 1 1 D1 0 0 1 1 0 0 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 ) s ( t c u d o ) r s ( P t c e t u e d l o o r s P b e O t e l ) o s ( s t b c u O d o ) r s P ( t c e t u e l d o o r s P b O e t e l o s b O 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 LEFT & RIGHT CHANNELS BOTH MSB D7 0 1 D6 D5 D4 D3 D2 D1 LSB ZERO CROSS ATT. MODE D0 1 dB STEPS ON OFF X = DON’TCARE SPEAKER/RECORD ATTENUATION = 0dB ∼ -79dB 13/21 TDA7466 RECORD AND RIGHT CHANNEL SPEAKER ATTENUATION SELECTION MSB D7 D6 D5 D4 D3 D2 0 0 0 0 1 1 1 1 D1 0 0 1 1 0 0 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 ) s ( t c u d o ) r s ( P t c e t u e d l o o r s P b e O t e l ) o s ( s t b c u O d o ) r s P ( t c e t u e l d o o r s P b O e t e l o s b O 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 X = DON’T CARE SPEAKER/RECORD ATTENUATION = 0dB ∼ -79dB VOICE CANCELLER/INPUT/RECOUT L & R SELECTION MSB D7 1 1 LSB D6 D5 1 1 1 1 1 1 1 1 14/21 0 0 1 1 0 1 0 1 D4 D3 D2 1 1 D1 1 1 0 0 1 1 0 1 0 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 D0 0 1 VOICE CANCELLER OFF ON 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 TDA7466 SRS SPACE CONTROL: ATTENUATION SELECTION MSB D7 D6 D5 D4 D3 D2 0 0 0 0 1 1 1 1 D1 0 0 1 1 0 0 1 1 LSB 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 ( t c u d o ) r s ( P t c e t u e d l o o r s P b e O t e l ) o s ( s t b c u O d o ) r s P ( t c e t u e l d o o r s P b O e t e l o s b O 0 0 0 0 0 0 1 1 0 1 0 1 1 X X X X X X = DON’T CARE SPEAKER/RECORD ATTENUATION = 0dB ∼ -31dB SRS CENTER CONTROL: ATTENUATION SELECTION MSB D7 D6 0 1 0 1 D5 D4 D3 0 0 0 0 0 0 1 1 0 1 0 1 1 X X 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 TDA7466 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 NATURAL BASE VOICE CANCELLER OFF OFF INPUT IN1 MIX SWITCH NO MIX PIN SRS SURROUND BASS & MIDDLE OFF + MAX ATTENUATION 2dB TREBLE 0dB ) s ( t c u d o ) r s ( P t c e t u e d l o o r s P b e O t e l ) o s ( s t b c u O d o ) r s P ( t c e t u e l d o o r s P b O e t e l o s b O PIN DESCRIPTION PIN: L-OUT, R-OUT, RECOUT-L, RECOUT-R PIN: HP1 VS LP1 VS 10K 10Ω GND GND 20µA 60K HP2 GND D94AU198 GND D96AU477 PIN: HP2 PIN: L-IN, R-IN VS VS 20µA 20µA 5.5K 60K HP1 GND 5.5K D94AU199 16/21 50K GND VREF D94AU200 TDA7466 PIN: VAR-L, VAR-R, PIN: CREF VS VS 20µA 20µA 20K 42K SW 30K 20K ) s ( t c u d o ) r s ( P t c e t u e d l o o r s P b e O t e l ) o s ( s t b c u O d o ) r s P ( t c e t u e l d o o r s P b O e t e l o s b O GND Vref D95AU336 D95AU227 GND PIN: SCL, SDA PIN: LP1 VS 20µA 20µA 10K GND GND HP1 D94AU205 D94AU211 PIN: PS1, PS2, PS3, PS4, LP PIN: NETW2 VS VS 20µA 20µA GND GND D96AU473 D95AU308 17/21 TDA7466 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 ) s ( t c u d o ) r s ( P t c e t u e d l o o r s P b e O t e l ) o s ( s t b c u O d o ) r s P ( t c e t u e l d o o r s P b O e t e l o s b O BASS-LO BASS-RO,MIDDLE-LO,MIDDLE-RO GND D95AU231A D95AU230 PIN: BASS-LO, BASS-RO, MIDDLE-LO, MIDDLE-RO, PIN: TREBLE-L, TREBLE-R VS VS 20µA 20µA (*) 25K GND BASS-LI,BASS-RI,MIDDLE-LI,MIDDLE-RI GND D95AU232 (*) 45K : Bass 25K : MIDDLE D95AU309 PIN: VOUT REF PIN: NBLIN, NBRIN VS VS 20µA 20µA GND D95AU233A 10K GND 18/21 GND D95AU234 SW TDA7466 PIN: NBLO, NBRO VS VREF ) s ( t c u d o ) r s ( P t c e t u e d l o o r s P b e O t e l ) o s ( s t b c u O d o ) r s P ( t c e t u e l d o o r s P b O e t e l o s b O GND D95AU235A 19/21 TDA7466 mm DIM. MIN. TYP. A inch MAX. MIN. TYP. 5.08 OUTLINE AND MECHANICAL DATA MAX. 0.20 A1 0.51 0.020 A2 3.05 3.81 4.57 0.120 B 0.38 0.46 0.56 0.0149 0.0181 0.0220 B1 0.89 1.02 1.14 0.035 0.150 0.040 0.180 0.045 ) s ( t c u d o ) r s ( P t c e t u e d l o o SDIP42 (0.600") r s P b e O t e l ) o s ( s t b c u O d o ) r s P ( t c e t u e l d o o r s P b O e t e l o s b O c 0.23 0.25 0.38 0.0090 0.0098 0.0150 D 36.58 36.83 37.08 1.440 E 15.24 16.00 0.60 E1 12.70 14.48 0.50 13.72 1.450 1.460 0.629 0.540 e 1.778 0.070 e1 15.24 0.60 0.570 e2 18.54 0.730 e3 1.52 0.060 L 2.54 3.30 3.56 0.10 0.130 0.140 E A2 A L A1 E1 B B1 e e1 e2 D c E 42 22 .015 0,38 Gage Plane 1 e3 21 e2 SDIP42 20/21 TDA7466 ) s ( t c u d o ) r s ( P t c e t u e d l o o r s P b e O t e l ) o s ( s t b c u O d o ) r s P ( t c e t u e l d o o r s P b O e t e l o s b O Information furnished is believed to be accurate and reliable. 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