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ADV7125
CMOS, 330 MHz
Triple 8-Bit High Speed Video DAC
a
ADV is a registered trademark of Analog Devices, Inc.
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
FUNCTIONAL BLOCK DIAGRAM
R7–R0
GND R
SET
IOR
IOR
COMP
ADV7125
V
REF
VOLTAGE
REFERENCE
CIRCUIT
G7–G0
B7–B0
IOG
IOG
IOB
IOB
PSAVE
POWER-DOWN
MODE
BLANK
SYNC
CLOCK
V
AA
DAC8
DATA
REGISTER
8
DAC8
DATA
REGISTER
8
DAC8
DATA
REGISTER
BLANK AND
SYNC LOGIC
8
GENERAL DESCRIPTION
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.
PRODUCT HIGHLIGHTS
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