This part is a kind of semiconductor called TDA2615.
Function of this product has 2 x 6 W hi-fi audio power amplifier.
Manufacturers : NXP
Image and pinout :

Some of the text within the PDF file :
INTEGRATED CIRCUITS DATA SHEET TDA2615 2 × 6 W hi-fi audio power amplifier Product specification Supersedes data of July 1994 File under Integrated Circuits, IC01 1995 May 08 Philips Semiconductors Philips Semiconductors Product specification 2 × 6 W hi-fi audio power amplifier FEATURES • Requires very few external components • No switch-on/switch-off clicks • Input mute during switch-on and switch-off • Low offset voltage between output and ground • Excellent gain balance of both amplifiers • Hi-fi in accordance with “IEC 268” and “DIN 45500” • Short-circuit proof and thermal protected • Mute possibility. QUICK REFERENCE DATA Stereo application. SYMBOL ±VP PO Gv Gv α SVRR Vno PARAMETER supply voltage range output power internal voltage gain chan [ ... ]
TDA2615 PDF Datasheet Download
