This part is a kind of semiconductor called ADV7173.

Function of this product has Digital PAL/NTSC Video Encoder.

Manufacturers : Analog Devices

Image and pinout :

Some of the text within the PDF file :

a Digital PAL/NTSC Video Encoder with Six DACs (10 Bits), Color Control and Enhanced Power Management ADV7172/ADV7173 FEATURES ITU-R1 BT601/656 YCrCb to PAL/NTSC Video Encoder Six High Quality 10-Bit Video DACs SSAF™ (Super Sub-Alias Filter) Advanced Power Management Features PC’98-Compliant (TV Detect with Polling and Auto Shutdown to Save On Power Consumption) Low Power DAC Mode Individual DAC ON/OFF Control Variable DAC Output Current (5 mA–36 mA) Ultralow Sleep Mode Current Hue, Brightness, Contrast and Saturation Controls CGMS (Copy Generation Management System) WSS (Wide Screen Signalling) NTSC-M, PAL-M/N, PAL-B/D/G/H/I, PAL-60 YUV Betacam, MII and SMPTE/EBU N10 Output Levels Single 27 MHz Clock Required (؋2 Oversampling) 80 dB Video SNR 32-Bit Direct Digital Synthesizer fo [ ... ]

ADV7173 PDF Datasheet Download