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TDA7431S Datasheet(PDF) 1 Page - STMicroelectronics |
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TDA7431S Datasheet(HTML) 1 Page - STMicroelectronics |
1 / 23 page 1/23 TDA7430 TDA7431 June 2004 1FEATURES ■ 1 STEREO (4STEREO) INPUT + 1 MIXER INPUT ■ INPUT ATTENUATION CONTROL IN 0.5dB STEP ■ VOICE CANCELLER IS AVAILABLE ■ TREBLE MIDDLE AND BASS CONTROL ■ THREE SURROUND MODES ARE AVAILABLE – MUSIC: 4 SELECTABLE RESPONSES – MOVIE AND SIMULATED: 256 SELECTABLE RESPONSES ■ 2 SPEAKERS AND 2 RECORD ATTENUATORS: – 2 INDEPENDENT SPEAKERS AND 2 INDE- PENDENT RECORD CONTROL IN 1dB STEP FOR BALANCE FACILITY – AVAILABILITY OF LOUDSPEAKER EQUAL- IZATION FIXED BY EXTERNAL COMPO- NENTS – INDEPENDENT MUTE FUNCTION ■ ALL FUNCTIONS PROGRAMMABLE VIA SERIAL BUS 2 DESCRIPTION The TDA7430/TDA7431 is volume tone (bass middle and treble) balance (Left/Right) processors 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 resis- tor networks and switches combined with operational amplifiers. Thanks to the used BIPO- LAR/CMOS Technology, Low Distortion, Low Noise and DC stepping are obtained. DIGITALLY CONTROLLED AUDIO PROCESSOR WITH SURROUND SOUND MATRIX AND VOICE CANCELLER Figure 2. Pin Connection (TDA7430) 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 REV. 10 Figure 1. Package Table 1. Order Codes Part Number Package TDA7431S SDIP42 TDA7430 TQFP44 TDA7430TR Tape & Reel SDIP42 TQFP44 |
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