This part is a kind of semiconductor called SC2038.

Function of this product has Dual 2.2W Audio Amplifier Plus Stereo Headphone.

Manufacturers : CHISIC

Image and pinout :

Some of the text within the PDF file :

SC2038 Dual 2.2W Audio Amplifier Plus Stereo Headphone Features l Stereo headphone amplifier mode l “Click and pop” suppression circuit l Unity-gain stable Applications l Multimedia Monitors l Portable DVD/VCD l Thermal shutdown protection circuit l DIP-16(173mil) Pb-Free Packaging l DIP-16 Exposed-DAP Pb-Free Packaging l Portable Televisions l Portable and Desktop Computers General DesCMiption The SC2038 is a dual bridge-connected audio power amplifier which, when connected to a 5V supply, will deliver 2.2W to a 4Ω load (Note 1) or 2.5W to a 3Ω load (Note 2) with less than 1.0% THD+N. In addition, the headphone input pin allows the amplifiers to operate in single-ended mode when driving stereo headphones. To simplify audio system design, the SC2038 combines dual bridge speaker a [ ... ]

SC2038 PDF Datasheet Download