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TDA7311
SERIAL BUS CONTROLLED AUDIO PROCESSOR
INPUT MULTIPLEXER
鈥?TWO STEREO DIFFERENTIAL INPUTS
鈥?TWO STEREO SINGLE ENDED INPUTS
鈥?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:
鈥?4 INDEPENDENT SPEAKERS CONTROL
IN 1.25dB STEPS FOR BALANCE AND
FADER FACILITIES
鈥?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.
PINS CONNECTION
(Top view)
DIP40
ORDERING NUMBER:
TDA7311
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
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