This part is a kind of semiconductor called TDA1514.

Function of this product has 50 W high performance hi-fi amplifier.

Manufacturers : NXP

Image and pinout :

Some of the text within the PDF file :

INTEGRATED CIRCUITS DATA SHEET TDA1514A 50 W high performance hi-fi amplifier Product specification File under Integrated Circuits, IC01 May 1992 Philips Semiconductors Product specification 50 W high performance hi-fi amplifier GENERAL DESCRIPTION TDA1514A The TDA1514A integrated circuit is a hi-fi power amplifier for use as a building block in radio, tv and other audio applications. The high performance of the IC meets the requirements of digital sources (e.g. Compact Disc equipment). The circuit is totally protected, the two output transistors both having thermal and SOAR protection (see Fig.3). The circuit also has a mute function that can be arranged for a period after power-on with a delay time fixed by external components. The device is intended for symmetrical power supp [ ... ]

TDA1514 PDF Datasheet Download