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7431 Datasheet(PDF) 1 Page - STMicroelectronics |
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7431 Datasheet(HTML) 1 Page - STMicroelectronics |
1 / 21 page TDA7430 TDA7431 DIGITALLY CONTROLLED AUDIO PROCESSOR WITH SURROUND SOUND MATRIX AND VOICE CANCELLER 1 STEREO (4 STEREO) INPUT + 1 MIXER IN- PUT INPUT ATTENUATION CONTROL IN 0.5dB STEP VOICE CANCELLER IS AVAILABLE TREBLE MIDDLE AND BASS CONTROL THREE SURROUND MODES ARE AVAIL- ABLE: - MUSIC: 4 SELECTABLE RESPONSES - MOVIE AND SIMULATED: 256 SELECTABLE RESPONSES 2 SPEAKER AND 2 RECORD ATTENU- ATORS: - 2 INDEPENDENT SPEAKERS AND 2 INDEPENDENT RECORD CONTROL IN 1dB STEP FOR BALANCE FACILITY - AVAILABILITY OF LOUDSPEAKER EQUALIZATION FIXED BY EXTERNAL COMPONENTS - INDEPENDENT MUTE FUNCTION ALL FUNCTIONS PROGRAMMABLE VIA SE- RIAL BUS DESCRIPTION The TDA7430/7431 are volume tone (bass middle and treble) balance (Left/Right) processors with voice canceller for quality audio applications in car radio and Hi-Fi systems. They reproduce surround sound by using pro- grammable phase shifters and a signal matrix. Control of all the functions is accomplished by se- rial bus. The AC signal setting is obtained by resistor net- works and switches combined with operational amplifiers. Thanks to the used BIPOLAR/CMOS Technology, Low Distortion, Low Noise and DC stepping are obtained. September 1999 PIN CONNECTIONS ORDERING NUMBERS: TDA7430 (TQFP44) TDA7431 (SDIP42) SDIP42 TQFP44 1 3 2 4 5 6 7 8 9 R_OUT L_OUT RECOUT_R NBLO RECOUT_L NBLIN L_IN MIX R_IN 37 36 35 34 33 31 32 30 29 D95AU219B 10 11 12 13 14 42 41 40 39 38 LPVC NBRIN NBRO CREF VS 15 16 TREBLE_R TREBLE_L AGND SDA ADDR SCL DIG_GND 28 27 26 24 25 23 22 17 18 19 20 21 LP1 HP1 HP2 VOUTREF VAR_L VAR_R BASSO_L BASSO_R BASS_LO PS4 PS3 PS2 PS1 LP BASS_LI BASS_RO BASS_RI MIDDLE_LI MIDDLE_LO MIDDLE_RO MIDDLE_RI 1 2 3 5 6 4 7 8 9 10 17 11 18 19 20 21 22 44 43 42 41 39 40 38 37 36 35 34 28 27 26 24 23 25 33 32 31 29 30 VAR_L REARIN REAROUT HP1 LP1 HP2. BASS_LI BASS_LO BASSO_R BASSO_L VAR_R L_IN4 RECOUT_L RECOUT_R R_OUT DIG_GND L_OUT R_IN1 MIX L_IN1 L_IN3 L_IN2 D95AU220B 12 13 14 15 16 ® 1/21 |
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