This part is a kind of semiconductor called CD2003GB.
Function of this product has FM/AM RADIO IC.
Manufacturers : China Hua Jing Electronics
Image and pinout :
Some of the text within the PDF file :
The CD2003GP, CD2003GB is a monolithic IC designed for use as a FM / AM radio system.
Combined with audio power amplifier IC, a suitable FM / AM radio can be constituted.
Its features are :
1. No need for FM IFT, AM IFT, and FM detector coil
2. Adjustment free for FM detector circuit
3. Wide operating supply voltage range : Vcc = 1.8 ~ 7V
4. Package : DIP 16 / SOP 16
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CD2003GB PDF Datasheet Download