This part is a kind of semiconductor called DSP56ADC16.

Function of this product has 16-Bit Sigma Delta Analog to Digital Converter.

Manufacturers : Motorola Semiconductor

Image and pinout :

Some of the text within the PDF file :

MOTOROLA SEMICONDUCTOR TECHNICAL DATA Order this data sheet by DSP56ADC16/D DSP56ADC16 Technical Information DSP56ADC16 Available in a 20 pin CERDIP package 16-bit Sigma-Delta Analog-to-Digital Converter The DSP56ADC16 is a single chip, linear, 16-bit oversampling analog-to-digital (A/D) converter, providing output sample rates up to 100 KHz. Third order noise shaping sigma-delta technology is employed utilizing 64 times oversampling which yields 96 dB dynamic range and 90 dB signal-to-noise ratio for the signal bandwidths from 0 to 45.5 KHz with an in-band ripple of less than 0.001 dB. The DSP56ADC16 is an ideal choice for high performance digital audio systems, such as digital audio disks, tapes, and processors as well as voice-bandwidth communication and control applications. It do [ ... ]

DSP56ADC16 PDF Datasheet Download