This part is a kind of semiconductor called CD8227GP.

Function of this product has LOW FREQUENCY POWER AMPLIFIER.

Manufacturers : SUM

Image and pinout :

Some of the text within the PDF file :

SUM GENERAL DESCRIPTION C D8227 GP is audio power IC wit h built-in two Channels developed for portable radio cassette tape recorder with power ON/OFF switch. Thermal shut down protection CD8227GP LOW FREQUENCY POWER AMPLIFIER Outline Drawing circuit is built in. Because of the parts reduction and DIP (Dual in line package), space merit is re markable. FEATURES z High Power :(Vcc=9V,R L =4 Ω ,f=1kHz,THD=10%) :(Vcc=9V,R L =3 Ω ,f=1kHz,THD=10%) Rf=120¦¸ Rf=0 ¦¸ http://www.DataSheet4U.net/ Pout=2.5W/CH(Typ.) Pout=3.0W/CH(Typ.) z Vo ltage Gain : Gv=45dB(Typ.)£¨ ,f=1kHz£© ,f=1kHz Gv=56.5dB(Typ.)£¨ z z z z z Low popping noise at power ON Small Quiescent Current : I C C Q =21 mA(Typ.) (Vcc=9V Vin=0) fripple=100Hz£¬ Rg=600 ¦¸ ) Rg=10k ¦ ¸ £ ¬ Rg=600¦¸ ) Ripple Re [ ... ]

CD8227GP PDF Datasheet Download