ADV7120
FEATURES
80 MHz Pipelined Operation Triple 8-Bit D/A Converters RS-343A/RS-170 patible Outputs TTL patible Inputs +5 V CMOS Monolithic Construction 40-Pin DIP or 44-Pin PLCC and 48-Lead TQFP APPLICATIONS High Resolution Color Graphics CAE/CAD/CAM Applications Image Processing Instrumentation Video Signal Reconstruction Desktop Publishing Direct Digital Synthesis (DDS) and I/Q Modulation SPEED GRADES- 80 MHz 50 MHz 30 MHz
CMOS 80 MHz, Triple 8-Bit Video DAC ADV7120
FUNCTIONAL BLOCK DIAGRAM
VAA FS ADJUST VREF REFERENCE AMPLIFIER P
CLOCK R0 R7 PIXEL INPUT PORT RED 8 REGISTER
G0 G7
GREEN REGISTER
8 DAC IOG
B0 B7
BLUE REGISTER
8 DAC IOB
REF WHITE BLANK SYNC
CONTROL REGISTER
SYNC CONTROL
ISYNC
GENERAL DESCRIPTION
The ADV7120 (ADV®) is a digital to analog video converter on a single monolithic chip. The part is specifically designed for high resolution color graphics and video systems. It is also ideal for any high speed munications type applications requiring low cost, high speed DACs. It consists of three, high speed, 8-bit, video D/A converters (RGB); a standard TTL input interface and high impedance, analog output, current...
