Data Sheet

CDK3400/CDK3401

10-bit, 100/150MSPS, Triple Video DACs

Exar Corporation

www.exar.com

48720 Kato Road, Fremont CA 94538, USA

Tel. +1 510 668-7000 - Fax. +1 510 668-7001

FEATURES

n

10-bit resolution

n

150 megapixels per second

n

±0.1% linearity error

n

Sync and blank controls

n

n

Internal bandgap voltage reference

n

Double-buffered data for low distortion

n

TTL-compatible inputs

n

Low glitch energy

n

Single +5V power supply

APPLICATION S

n

Video signal conversion

– RGB

– Composite, Y, C

n

Multimedia systems

n

Image processing

n

True-color graphics systems

(1 billion colors)

n

Broadcast television equipment

n

High-Definition Television (HDTV)

equipment

n

Direct digital synthesis

General Description

CDK3400/3401 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: CDK3400 at 100MSPS and CDK3401 at 150MSPS.

TTL-level inputs are converted to analog current outputs that can drive

25-37.5Ω loads corresponding to doubly-terminated 50-75Ω loads. A sync

BLANK = L. Although appropriate for many applications, the internal 1.235V

Few external components are required, just the current reference resistor,

current output load resistors, and decoupling capacitors.

Package is a 48-lead TQFP. Fabrication technology is CMOS. Performance is

guaranteed from 0 to 70°C.

Block Diagram

Ordering Information

Part Number

Package

Pb-Free

RoHS Compliant Operating Temp Range Packaging Method Package Quantity

CDK3400CTQ48

TQFP-48

Yes

Yes

0°C to +70°C

Tray

250

CDK3401CTQ48

TQFP-48

Yes

Yes

0°C to +70°C

Tray

250

Moisture sensitivity level for all parts is MSL-3.

10-bit D/A

Converter

10

SYNC

CLOCK

G9-0

COMP

+1.235V

Ref

BLANK

10-bit D/A

Converter

10

B9-0

10-bit D/A

Converter

10

R9-0

REF

REF

SYNC

R

V