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TDA7303TR

Digital controlled stereo audio processor with loudness

STMicroelectronics 

TDA7303

Digital controlled stereo audio processor with loudness

Features

■ Input multiplexer:

– 3 stereo inputs

– Selectable input gain for optimal adaptation

to different sources

■ Volume control in 1.25 dB steps

■ Loudness function

■ Treble and bass controL

■ Four speaker attenuators:

– 4 independent speakers control in 1.25d B

steps for balance and fader facilities

– Independent mute function

■ All functions programmable via serial I2C bus

Description

The TDA7303 is a volume, tone (bass and treble)

balance (left/right) and fader (front/rear)

processor for quality audio applications in car

radio, Hi-Fi and portable systems.

SO-28

Selectable input gain and external loudness

function are provided. Control is accomplished by

serial I2C bus microprocessor interface.

The AC signal setting is obtained by resistor

networks and switches combined with operational

amplifiers.

Thanks to the used bipolar/CMOS technology, low

distortion, low noise and low DC stepping are

obtained.

Table 1.

Device summary

Order code

TDA7303

TDA7303TR

Package

SO-28

SO-28

Packing

Tray

Tape and reel

September 2013

Rev 4

1/20

1

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