This part is a kind of semiconductor called TDA1541.
Function of this product has Dual 16-bit DAC.
Manufacturers : NXP
Image and pinout :

Some of the text within the PDF file :
INTEGRATED CIRCUITS DATA SHEET TDA1541 Dual 16-bit DAC Product specification File under Integrated Circuits, IC01 November 1985 Philips Semiconductors Product specification Dual 16-bit DAC GENERAL DESCRIPTION TDA1541 The TDA1541 is a monolithic integrated dual 16-bit digital-to-analogue converter (DAC) designed for use in hi-fi digital audio equipment such as Compact Disc players, digital tape or cassette recorders. Features • Selectable two-channel input format: offset binary or two’s complement • Internal timing and control circuit • TTL compatible digital inputs • High maximum input bit-rate and fast settling time. QUICK REFERENCE DATA Supply voltages pin 28 pin 26 pin 15 Supply currents pin 28 pin 26 pin 15 Signal-to-noise ratio (full scale sine-wave) at analogue out [ ... ]
TDA1541 PDF Datasheet Download
