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1 / 20 page TDA7344 DIGITAL CONTROLLED AUDIO PROCESSOR WITH SURROUND SOUND MATRIX 1 STEREO INPUT VOLUME CONTROL IN 1.25dB STEP TREBLE AND BASS CONTROL THREE SURROUND MODES ARE AVAIL- ABLE: – MOVIE, MUSIC AND SIMULATED FOUR SPEAKER ATTENUATORS: – 4 INDEPENDENT SPEAKERS CONTROL IN 1.25dB STEPS FOR BALANCE FACILITY – INDEPENDENT MUTE FUNCTION ALL FUNCTIONS PROGRAMMABLE VIA SE- RIAL BUS DESCRIPTION The TDA7344 is a volume tone (bass and treble) balance (Left/Right) processor for quality audio applications in car radio and Hi-Fi systems. It reproduces surround sound by using phase shifters and a signal matrix. 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. February 1997 PIN CONNECTIONS ORDERING NUMBERS: TDA7344P (PQFP44) TDA7344S (SDIP42) PQFP44 (10 X 10) SDIP42 1/20 |
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