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TDA7449L Datasheet(PDF) 1 Page - STMicroelectronics |
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TDA7449L Datasheet(HTML) 1 Page - STMicroelectronics |
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1 / 13 page  TDA7449L LOW COST DIGITALLY CONTROLLED AUDIO PROCESSOR INPUT MULTIPLEXER - 2 STEREO INPUTS - SELECTABLE INPUT GAIN FOR OPTIMAL ADAPTATION TO DIFFERENT SOURCES ONE STEREO OUTPUT VOLUME CONTROL IN 1.0dB STEPS TWO SPEAKER ATTENUATORS: - TWO INDEPENDENT SPEAKER CONTROL IN 1.0dB STEPS FOR BALANCE FACILITY - INDEPENDENT MUTE FUNCTION ALL FUNCTION ARE PROGRAMMABLE VIA SERIAL BUS DESCRIPTION The TDA7449L is a volume control and balance (Left/Right) processor for quality audio applica- tions in TV systems. Selectable input gain is provided. Control of all the functions is accomplished by serial 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. April 1999 ® 0/30dB 2dB STEP MUXOUTL VOLUME VOLUME MUXOUTR SPKR ATT LEFT LOUT SCL SDA DIG_GND ROUT D98AU868 I 2CBUS DECODER + LATCHES 100K 100K G L-IN1 L-IN2 100K 100K R-IN1 R-IN2 G INPUT MULTIPLEXER + GAIN SPKR ATT RIGHT SUPPLY CREF AGND VS 5 8 9 7 6 19 20 18 4 2 3 11 1 10 VREF BLOCK DIAGRAM ORDERING NUMBER: TDA7449L DIP20 1/13 |
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Similar Description - TDA7449L |
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