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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 3 2048 3 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 3 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.
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FUNCTIONAL BLOCK DIAGRAM
ODD/EVEN
PIXEL
DATA
(RED,
GREEN,
BLUE)
B
C
D
E
F
G
A
H
LOADIN
LOADOUT
LPF
V
REF
IOR
MPU PORT
D7–D0CE R/W C0 C1
ADV7129
V
AA
GND
CONTROL
REGISTERS
IOR
IOG
IOG
IOB
IOB
RCOMP
GCOMP
BCOMP
R
RSET
R
GSET
R
BSET
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..