This part is a kind of semiconductor called AD9955.

Function of this product has 85Mhz Direct Digital Synthesizer.

Manufacturers : Analog Devices

Image and pinout :

Some of the text within the PDF file :

www.DataSheet.co.kr c;bSo (~1- 90 dB Spurious Free Dynamic Range Continuous Frequency Update On-Board Data Ready Signal APPLICATIONS Frequency Synthesizers DDS Tuning Digital Demodulation FM Modulators GENERAL DESCRIPTION The AD99SS is a 100 MHz direct digital synthesizer for frequency synthesis applications. It comprises a 32-bit phase accumulator and a IS-bit phase-to-12-bit sine amplitude converter. The control logic is CMOS compatible, and the clock input is TTL. CMOS outputs are latched on board, and a data ready signal is provided. Designed for applications in communications, [ ... ]

AD9955 PDF Datasheet Download