This part is a kind of semiconductor called YM3016.

Function of this product has 2-Channel Serial & Binary Input Floating D/A Converter.

Manufacturers : Yamaha

Image and pinout :

Some of the text within the PDF file :

D/A CONVERTER 2-Channel Serial & Binary input Floating D/A Converter VM30.,S DAC(CDJ • OUTLINE The YM30I6: DAC-GS is a Floating D/A converter (referred to as DAC hereafter) with the 2- channel serial and I6-bit binary input or 2's complement input. It can produce analog output (I6-bit dynamic range) which has lO-bit mantissa and 7-step exponent characteristic for the input digital signal. • FEATURES • 16-bit input format can select either binary or 2's complement (due to built-in floating converter logic). • Analog output can be obtained easily by adding a buffer operational amplifier, etc. • 16-bit wide dynamic range. • Capable of processing PCM sound source up to 2 channels. • Equipped with a built-in analog switch for sample hold. • Lower noise and less harmonic [ ... ]

YM3016 PDF Datasheet Download