www.fairchildsemi.com

Rev. 1.07 12/8/04

Features

• 10-bit resolution

• 150 megapixels per second

•± 0.1% linearity error

• Sync and blank controls

• 1.0V p-p video into 37.5

Ω or 75Ω load

• Internal bandgap voltage reference

• Double-buffered data for low distortion

• TTL-compatible inputs

•Low glitch energy

• Single +5 Volt power supply

Applications

•Video signal conversion

– RGB

– Composite, Y, C

• Multimedia systems

• Image processing

•True-color graphics systems (1 billion colors)

• Broadcast television equipment

• High-Definition Television (HDTV) equipment

• Direct digital synthesis

Description

FMS3110/3115 products are low-cost triple D/A converters

that are tailored to fit graphics and video applications where

speed is critical. Two speed grades are available:

TTL-level inputs are converted to analog current outputs that

can drive 25–37.5

Ω loads corresponding to doubly-terminated

50–75

Ω loads. A sync current following SYNC input timing

BLANK = L. Although appropriate for many applications

the internal 1.235V reference voltage can be overridden by

Few external components are required, just the current

reference resistor, current output load resistors, and

decoupling capacitors.

Package is a 48-lead LQFP. Fabrication technology is

CMOS. Performance is guaranteed from 0 to 70°C.

FMS3110

100 Ms/s

FMS3115

150 Ms/s

Block Diagram

10 bit D/A

Converter

SYNC

10

SYNC

CLOCK

COMP

+1.235V

Ref

BLANK

10 bit D/A

Converter

10

10 bit D/A

Converter

10

FMS3110/3115

Triple Video D/A Converters

3 x 10 bit, 150 Ms/s