Data Sheet

©2008 CADEKA Microcircuits LLC

www.cadeka.com

Amplify the Human Experience

CDK3402/CDK3403

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

features

n

8-bit resolution

n

150 megapixels per second

n

±0.2% 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

a pplication s

n

Video signal conversion

– RGB

– Composite, Y, C

n

Multimedia systems

n

Image processing

n

True-color graphics systems

General Description

CDK3402/3401 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: CDK3402 at 100MSPS and CDK3403 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

CDK3402CTQ48

TQFP-48

Yes

Yes

0°C to +70°C

Tray

250

CDK3402CTQ48Y

TQFP-48

Yes

Yes

0°C to +70°C

Tray

1,250

CDK3403CTQ48

TQFP-48

Yes

Yes

0°C to +70°C

Tray

250

CDK3403CTQ48Y

TQFP-48

Yes

Yes

0°C to +70°C

Tray

1,250

Moisture sensitivity level for all parts is MSL-3.

8-bit D/A

Converter

8

SYNC

CLOCK

G7-0

COMP

+1.235V

Ref

BLANK

8-bit D/A

Converter

8

B7-0

8-bit D/A

Converter

8

R7-0

REF

REF

SYNC

R

V