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Information furnished by Analog Devices is believed to be accurate and

reliable. However, no responsibility is assumed by Analog Devices for its

use, nor for any infringements of patents or other rights of third parties

which may result from its use. No license is granted by implication or

otherwise under any patent or patent rights of Analog Devices.

a

192-Bit, 360 MHz True-Color

Video DAC with Onboard PLL

ADV7129

FEATURES

192-Bit Pixel Port Allows 2048

2048

24 Screen

Resolution

360 MHz, 24-Bit True-Color Operation

Triple 8-Bit D/A Converters

8:1 Multiplexing

Onboard PLL

RS-343A/RS-170 Compatible Analog Outputs

TTL Compatible Digital Inputs

Internal Voltage Reference

Standard 8-Bit MPU I/O Interface

DAC-DAC Matching: Typ 2%, Adjustable to 0.02%

+5 V CMOS Monolithic Construction

304-Pin PQFP Package

APPLICATIONS

Ultrahigh Resolution Color Graphics

Image Processing

Drives 24-Bit Color 2K

2K Monitors

GENERAL DESCRIPTION

The ADV7129 is a complete analog output, video DAC on a single

CMOS (ADV®) monolithic chip. The part is specifically designed

for use in the highest resolution graphics and imaging systems.

The ultimate level of integration, comprised of 360 MHz triple

8-bit DACs, a programmable pixel port, an internal voltage refer-

ence and an onboard PLL, makes the ADV7129 the only choice

for the very highest level of performance and functionality.

The device consists of three high speed, 8-bit, video D/A con-

verters (RGB). An onboard phase locked loop clock generator

is provided to provide high speed operation without requiring

high speed external crystal or clock circuitry.

The part is fully controlled through the MPU port by the on-

board command registers. This MPU port may be updated at

any time without causing sparkle effects on the screen.

ADV is a registered trademark of Analog Devices, Inc.

(continued on page 10)

FUNCTIONAL BLOCK DIAGRAM

ODD/

EVEN

PIXEL

DATA

(RED,

GREEN,

BLUE)

B

C

D

E

F

G

A

H

LOADIN

LOADOUT

LPF

IOR

MPU PORT

D7–D0

CE R/

W C0 C1

ADV7129

GND

CONTROL

REGISTERS

IOR

IOG

IOG

IOB

IOB

RCOMP

GCOMP

BCOMP

BLANK

HSYNC

VSYNC

CSYNC

VOLTAGE

REFERENCE

SENSE/

SYNCOUT

8

CLOCK

CONTROL

PLL

INT PIXEL

CLOCK

24

24

24

24

24

24

24

24

BLANK

AND SYNC

LOGIC

8

GREEN

DAC

8

BLUE

DAC

8

RED

DAC

MUX

8:1

One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.

Tel: 617/329-4700

World Wide Web Site: http://www.analog.com

Fax: 617/326-8703

© Analog Devices, Inc., 1996

ADV is a registered trademark of Analog Devices, Inc..