a
FEATURES
330 MSPS Throughput Rate
Triple 8-Bit DACs
RS-343A/RS-170 Compatible Output
Complementary Outputs
DAC Output Current Range 2 to 26 mA
TTL Compatible Inputs
Internal Reference (1.23 V)
Single-Supply 5 V/3.3 V Operation
48-Lead LQFP Package
Low Power Dissipation (30 mW Min @ 3 V)
Low Power Standby Mode (6 mW Typ @ 3 V)
Industrial Temperature Range (–40°C to +85°C)
APPLICATIONS
Digital Video Systems
High Resolution Color Graphics
Digital Radio Modulation
Image Processing
Instrumentation
Video Signal Reconstruction
CMOS, 330 MHz
Triple 8-Bit High Speed Video DAC
ADV7125
FUNCTIONAL BLOCK DIAGRAM
V
AA
BLANK
SYNC
DATA
REGISTER
BLANK AND
SYNC LOGIC
IOR
DAC
IOR
IOG
8
DAC
IOG
IOB
DAC
IOB
VOLTAGE
REFERENCE
CIRCUIT
R7–R0
8
8
G7–G0
8
DATA
REGISTER
B7–B0
8
DATA
REGISTER
8
PSAVE
CLOCK
POWER-DOWN
MODE
V
REF
ADV7125
GND
R
SET
COMP
GENERAL DESCRIPTION
PRODUCT HIGHLIGHTS
The ADV 7125 is a triple high speed, digital-to-analog converter
on a single monolithic chip. It consists of three high speed, 8-bit
video DACs with complementary outputs, a standard TTL input
interface, and a high impedance, analog output current source.
The ADV7125 has three separate 8-bit-wide input ports. A single
5 V/3.3 V power supply and clock are all that are required to make
the part functional. The ADV7125 has additional video control
signals, composite
SYNC
and
BLANK,
as well as a power-
save mode.
The ADV7125 is fabricated in a 5 V CMOS process. Its mono-
lithic CMOS construction ensures greater functionality with
lower power dissipation. The ADV7125 is available in a 48-lead
LQFP package.
®
1. 330 MSPS (3.3 V only) throughput
2. Guaranteed monotonic to eight bits
3. Compatible with a wide variety of high resolution color
graphics systems, including RS-343A and RS-170
ADV is a registered trademark of Analog Devices, Inc.
REV. 0
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 that
may result from its use. No license is granted by implication or otherwise
under any patent or patent rights of Analog Devices.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781/329-4700
Fax: 781/326-8703
© Analog Devices, Inc., 2002
AD [ ANALOG DEVICES ]
