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  I2C  bus  microprocessor 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 I2C Bus

* Loudness function

* Volume control in 1.25dB steps

* Treble and bass control

* Input  and  output  for  external equalizer or noise reduction system