SC7312

HANGZHOU SILAN MICROELECTRONICS CO.,LTD

REV:1.2

2004.08.03

Http: www.silan.com.cn

Page 1 of 13

4-CH OUTPUT STEREO AUDIO PROCESSOR WITH 4 STEREO INPUTS AND

TONE/VOLUME CONTROL

SOP-32-375-1.27

DESCRIPTION

The SC7312 is a volume, tone (bass and treble), balance (left/ right)

and fader(front/rear) processor for quality audio applications in car radio

and Hi-Fi systems. Selectable input gain and external loudness function

are provided. Control is accomplished by serial I

interface. The AC signal settings is obtained by resistor networks and

switches combined with operational amplifiers. Due to the Used CMOS

technology, low distortion, low noise and low DC stepping are obtained.

FEATURES

* Input multiplexer:

--4 stereo inputs

--Selectable input gain for optimal adaptation to different

sources

* Four speaker attenuators:

--4 independent speakers control in 1.25dB steps for

balance and fader facilities

--Independent mute function

* All functions programmable via serial I

* Loudness function

* Volume control in 1.25dB steps

ORDERING INFORMATION

Device

Package

SC7312S

SOP-32-375-1.27

* Treble and bass control

* Input and output for external

equalizer or noise reduction system

BLOCK DIAGRAM