This part is a kind of semiconductor called CD1191CB.

Function of this product has Monolithic FM AM radio circuit.

Manufacturers : ETC

Image and pinout :

Some of the text within the PDF file :

华晶双极电路




























 单片调频调幅收音机电路




        

    

    

  #$   %&'( )*+,-

       ./ 
012 .3  
 
45  67 89:;   <=>?  !" !" 
 

                     
      


 @A B  C +  D @A B  C +  D        EFG)*  
   HI  45 !  !  JK  LM)N 
!   !
9:; OA  
 !  4PQR  LM)N  
 !  S7M,:; MT " 
  4MQR UM)*  [ ... ]

CD1191CB PDF Datasheet Download