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TDA7312

DIGITAL CONTROLLED STEREO AUDIO PROCESSOR

STMicroelectronics 

®

TDA7312

DIGITAL CONTROLLED STEREO AUDIO PROCESSOR

INPUT MULTIPLEXER:

- 4 STEREO INPUTS

FOUR SELECTABLE ADDRESSES

TWO DIGITAL CONTROL OUTPUTS

INPUT AND OUTPUT FOR EXTERNAL

EQUALIZER OR NOISE REDUCTION SYS-

TEM

VOLUME CONTROL IN 1.25dB STEPS

TREBLE AND BASS CONTROL

TWO SPEAKER ATTENUATORS:

- INDEPENDENT SPEAKERS CONTROL

IN 1.25dB STEPS

- INDEPENDENT MUTE FUNCTION

ALL FUNCTIONS PROGRAMMABLE VIA SE-

RIAL I2C BUS

DESCRIPTION

The TDA7312 is a volume, tone (bass and treble)

balance (Left/Right) processor for quality audio appli-

cations.

SDIP30

ORDERING NUMBER: TDA7312

Control is accomplished by serial I2C bus microproc-

essor interface.

The AC signal setting is obtained by resistor networks

andswitches combined with operationalamplifiers.

Thanks to the used BIPOLAR/CMOS Tecnology,

Low Distortion, Low Noise and Low DC stepping are

obtained.

PIN CONNECTION (Top view)

November 1999

1/13

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