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ADV7120

Part Number	ADV7120
Manufacturer	Analog Devices
Description	CMOS 80 MHz/ Triple 8-Bit Video DAC
Published	Mar 23, 2005
Detailed Description	a FEATURES 80 MHz Pipelined Operation Triple 8-Bit D/A Converters RS-343A/RS-170 Compatible Outputs TTL Compatible Input...
Datasheet	ADV7120 PDF File

Overview

a FEATURES 80 MHz Pipelined Operation Triple 8-Bit D/A Converters RS-343A/RS-170 Compatible Outputs TTL Compatible 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 COMP ADV7120 CLOCK R0 R7 PIXEL INPUT PORT RED 8 REGISTER 8 DAC IOR G0 G7 8 GREEN REGISTER 8 DAC IOG B0 B7 8 BLUE REGISTER 8 DAC IOB REF WHITE BLANK SYNC CONTROL REGISTER SYNC CONTROL ISYNC GND 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 communications 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 sources.
The ADV7120 has three separate, 8-bit, pixel input ports, one each for red, green and blue video data.
Additional video input controls on the part include composite sync, blank and reference white.
A single +5 V supply, an external 1.
23 V reference and pixel clock input are all that are required to make the part operational.
The ADV7120 is capable of generating RGB video output signals, which are compatible with RS-343A and RS-170 video standards, without requiring external buffering.
The ADV7120 is fabricated in a +5 V CMOS process.
Its monolithic CMOS construction ensures greater functionality with low power dissipation.
The part is packaged in both a 0.
6", 40-pin plastic DIP and a 44-pin plastic leaded (J-lead) chip carrier, PLCC.
The ADV7120 is also available in a very small 48l...

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