TDA7311

SERIAL BUS CONTROLLED AUDIO PROCESSOR

INPUT MULTIPLEXER

– TWO STEREO DIFFERENTIAL INPUTS

– TWO STEREO SINGLE ENDED INPUTS

– ONE MONO DIFFERENTIAL INPUT

INPUT

AND

OUTPUT

FOR

EXTERNAL

EQUALIZER OR NOISE REDUCTION SYS-

TEM

VOLUME CONTROL IN 1.25dB STEPS

TREBLE AND BASS CONTROL

FOUR SPEAKER ATTENUATORS:

– 4 INDEPENDENT SPEAKERS CONTROL

IN 1.25dB STEPS FOR BALANCE AND

FADER FACILITIES

– INDEPENDENT MUTE FUNCTION

ALL FUNCTIONS PROGRAMMABLE VIA SPI

COMPATIBLE SERIAL BUS

DESCRIPTION

The TDA7311 is a volume, tone (bass and treble)

and fader (front/rear) processor for high quality

audio applications in car radio and Hi-Fi systems.

Control is accomplished by serial bus microproc-

essor interface.

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 ob-

tained.

July 1999

PINS CONNECTION (Top view)

ORDERING NUMBER: TDA7311

DIP40

®

1/11