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TDA7344P Datasheet

  • TDA7344P

  • DIGITAL CONTROLLED AUDIO PROCESSOR WITH SURROUND SOUND MATRI...

  • 20頁

  • STMICROELECTRONICS   STMICROELECTRONICS

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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:
鈥?MOVIE, MUSIC AND SIMULATED
FOUR SPEAKER ATTENUATORS:
鈥?4 INDEPENDENT SPEAKERS CONTROL
IN 1.25dB STEPS FOR BALANCE FACILITY
鈥?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
PIN CONNECTIONS
PQFP44
(10 X 10)
SDIP42
ORDERING NUMBERS:
TDA7344P (PQFP44)
TDA7344S (SDIP42)
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
1/20

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