This part is a kind of semiconductor called CD7313GS.

Function of this product has 500mW Audio power amplifier.

Manufacturers : ETC

Image and pinout :

Some of the text within the PDF file :

华晶双极电路




























 音频功率放大电路




       !"#$% &'( 
  )* &01 2 &345  

      &+ , -./     
 

       
   

  67     8 9
  
   : ;<  '= >?@ ;<  E 67     8 9   !   : '( , AB CD 
  FGHIJK   L M N O , '(SQ 2 T + UVWX YZWX 8 9  
   P K Q  "  $   $   R  #  E[ ]^_`abc  9 d
   $  ef    




 























[ ... ]

CD7313GS PDF Datasheet Download