TDA7466 STMicroelectronics, TDA7466 Datasheet

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... INDEPENDENT MUTE FUNCTION ALL FUNCTIONS PROGRAMMABLE VIA SE- RIAL 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 applica- tions in car radio, Hi-Fi, TV systems. It reproduces SRS (Sound Retrieval System) ...

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... TDA7466 BLOCK DIAGRAM MIDDLE-LO MIDDLE-LI 2/21 BASS-RI MIDDLE-RO MIDDLE-RI SRS VREFOUT CREF AGND ...

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... R ) CH, CH amb Test Condition Mode = OFF CH CH out THD = 0.3% Adjacent att. step ON FIX, 0dB attenuation mix mix 0dB attenuation TDA7466 Value Max. 85 Value 11 - -55 to +150 Min. Typ. Max 10.2 2 0.01 0.1 106 90 -31.5 0 -14 +14 -14 +14 -14 +14 -79 0 100 = 25° 9V, R ...

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... TDA7466 ELECTRICAL CHARACTERISTICS (continued) Symbol Parameter SUPPLY A Voice Canceller Output 3 VO3 R Low Pass Filter Resistance LPV BASS CONTROL Gb Control Range B Step Resolution STEP R Internal Feedback Resistance B MIDDLE CONTROL Gm Control Range M Step Resolution STEP R Internal Feedback Resistance M TREBLE CONTROL Gt Control Range T Step Resolution ...

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... R p out Input Signal of 125Hz SPACE = 0dB, CENTER = MUTE R = GND OUT Input Signal of 2.15KHz SPACE = 0dB, CENTER = MUTE R = GND OUT SPACE = MUTE, CENTER =0dB R = GND OUT TDA7466 Min. Typ. Max. Unit – 4.5 dB 3.8 dB – 7 7 8.8 11.8 14 ...

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... TDA7466 ELECTRICAL CHARACTERISTICS (continued) Symbol Parameter SPEAKER & RECORD ATTENUATORS C Control Range range S Step Resolution STEP E Attenuation set error Steps DC A Output Mute Condition MUTE R Input Impedance VAR SPEAKER ATTENUATORS V Zero CrossingThreshold TH AUDIO OUTPUTS N Output Noise (OFF) O(OFF) N Output Noise (Movie) Standard ...

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... I C BUS INTERFACE Data transmission from microprocessor to the TDA7466 and viceversa takes place through the 2 2 wires I C 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 ...

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... The TDA7466 receives a start condition, the cor- CHIP ADDRESS MSB LSB D95AU306 Incremental Bus The TDA7466 receives a start condition, the cor- rect chip address, a subaddress with the MSB = 1 (incremental bus): now loop condition with an autoincrease of the subaddress whereas CHIP ADDRESS MSB LSB ...

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... BASS & NATURAL BASE 0 MIDDLE & TREBLE 1 SPEAKER ATTENUATION "L" 0 SPEAKER ATTENUATION "R" 1 RECORD ATTENUATION "L" 0 RECORD ATTENUATION"R" 1 INPUT MULTIPLEXER, VOICE CANCELLER & REC OUT 0 SRS / SPACE ATTENUATION 1 SRS / CENTER ATTENUATION LSB INPUT ATTENUATION D1 D0 0.5 dB STEPS - STEPS -12 -16 -20 -24 -28 TDA7466 9/21 ...

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... TDA7466 STANDARD SURROUND SELECTION MSB PHASE RESISTOR SELECTION MSB 10/ LSB D0 SURROUND MODE 0 SIMULATED 1 MUSIC 0 OFF 1 MOVIE OUT VAR FIX EFFECT CONTROL - -10 -11 -12 -13 -14 -15 -16 -17 -18 -19 -20 -21 SURROUND PHASE LSB RESISTOR D0 PHASE SHIFT PHASE SHIFT PHASE SHIFT PHASE SHIFT ...

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... BASS SELECTION MSB When external components aren’t connected, the data from NATURAL BASE must put "OFF" TDA7466 LSB BASS STEPS 0 -14 1 - NATURAL BASE NBRIN, NBRO, NBLIN, NBLO PIN ACTIVE NO NBRIN, NBRO, NBLIN, NBLO PIN 11/21 ...

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... TDA7466 MIDDLE & TREBLE SELECTION MSB 12/ LSB MIDDLE STEPS 0 -14 1 - TREBLE 2 dB STEPS -14 -12 - ...

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... LEFT CHANNEL SPEAKER ATTENUATION SELECTION MSB LEFT & RIGHT CHANNELS BOTH MSB DON’TCARE SPEAKER/RECORD ATTENUATION = 0dB -79dB TDA7466 LSB SPEAKER/RECORD ATT STEPS STEPS 0 -8 -16 -24 -32 -40 -48 -56 -64 -72 MUTE LSB ZERO CROSS ATT. MODE STEPS ON OFF 13/21 ...

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... TDA7466 RECORD AND RIGHT CHANNEL SPEAKER ATTENUATION SELECTION MSB DON’T CARE SPEAKER/RECORD ATTENUATION = 0dB VOICE CANCELLER/INPUT/RECOUT L & R SELECTION MSB 14/ -79dB LSB SPEAKER/RECORD ATT STEPS STEPS 0 -8 -16 -24 -32 -40 -48 -56 -64 -72 MUTE LSB D0 VOICE CANCELLER 0 OFF 1 ON REC OUT "L" VAR 1 (3BAND) ...

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... RECOMMENDED TO ATTENUATE -3dB IN INPUT ATTENUATION DURING "SRS OFF" TO FULFILL SRS BYPASS MODE WHEN SRS FUNCTION IS USED -31dB -31dB TDA7466 LSB SPACE ATTENUATION STEPS STEPS 0 -8 -16 -24 MUTE X LSB CENTER ATTENUATION STEPS STEPS 0 -8 -16 -24 MUTE X SRS INPUT NO SURROUND SIGNAL SURROUND SIGNAL SRS SWITCH SRS ON SRS OFF 15/21 ...

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... TDA7466 POWER ON RESET SURROUND & OUT CONTROL+ EFFECT CONTROL SPEAKER/RECORD ATTENUATION L &R MODE INPUT ATTENUATION + REAR SWITCH NATURAL BASE VOICE CANCELLER INPUT MIX SWITCH SRS SURROUND BASS & MIDDLE TREBLE PIN DESCRIPTION PIN: L-OUT, R-OUT, RECOUT-L, RECOUT GND 20 A GND D96AU477 ...

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... S SW 30K GND Vref PIN: LP1 V S 10K GND HP1 PIN: PS1, PS2, PS3, PS4 GND PIN: CREF 20 A D95AU227 PIN: SCL, SDA 20 A D94AU211 PIN: NETW2 20 A D95AU308 20K 42K 20K D95AU336 GND 20 A GND D94AU205 GND D96AU473 TDA7466 17/21 ...

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... TDA7466 PIN: BASSO-L, BASSO-R, NETW1 GND PIN: BASS-LO, BASS-RO, MIDDLE-LO, MIDDLE-RO (*) GND BASS-LI,BASS-RI,MIDDLE-LI,MIDDLE-RI (*) 45K : Bass 25K : MIDDLE PIN: VOUT REF GND 10K GND 18/21 PIN: BASS-LI, BASS-RI, MIDDLE-LI, MIDDLE-RI, GND BASS-LO BASS-RO,MIDDLE-LO,MIDDLE-RO D95AU230 PIN: TREBLE-L, TREBLE D95AU232 PIN: NBLIN, NBRIN V D95AU233A ...

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... PIN: NBLO, NBRO V S GND D95AU235A VREF TDA7466 19/21 ...

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... TDA7466 mm DIM. MIN. TYP. MAX. A 5.08 A1 0.51 A2 3.05 3.81 4.57 B 0.38 0.46 0.56 B1 0.89 1.02 1.14 c 0.23 0.25 0.38 D 36.58 36.83 37.08 E 15.24 16.00 E1 12.70 13.72 14.48 e 1.778 e1 15.24 e2 18.54 e3 1.52 L 2.54 3.30 3. 20/21 inch MIN. TYP. MAX. 0.20 0.020 0.120 ...

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