This part is a kind of semiconductor called TDA1543A.

Function of this product has Dual 16-bit DAC.

Manufacturers : Philips

Image and pinout :

Some of the text within the PDF file :

The TDA1543A is a monolithic integrated dual 16-bit digital-to-analog converter(DAC) designed as a low-cost economy version for use in hi-fi digital audio equipment such as Compact Disc players, digital tape or casseste recorders, digital sound in television systems and digital amplifiers. [ ... ]

TDA1543A PDF Datasheet Download