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CMOS, 330 MHz
Triple 8-Bit High Speed Video DAC
ADV7125
Rev. C
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FEATURES
330 MSPS throughput rate
Triple 8-bit DACs
RS-343A-/RS-170-compatible output
Complementary outputs
DAC output current range: 2.0 mA to 26.5 mA
TTL-compatible inputs
Internal Reference (1.235 V)
Single-supply +5 V/+3.3 V operation
48-lead LQFP and LFCSP packages
Low power dissipation (30 mW minimum @ 3 V)
Low power standby mode (6 mW typical @ 3 V)
Industrial temperature range (40°C to +85°C)
Pb-free (lead-free) packages
Qualified for automotive applications
APPLICATIONS
Digital video systems
High resolution color graphics
Digital radio modulation
Image processing
Instrumentation
Video signal reconstruction
Automotive infotainment units
FUNCTIONAL BLOCK DIAGRAM
8
DATA
REGISTER
DAC
BLANK
SYNC
R7 TO R0
G7 TO G0
B7 TO B0
PSAVE
CLOCK
DAC
ADV7125
DATA
REGISTER
DATA
REGISTER
BLANK AND
SYNC LOGIC
POWER-DOWN
MODE
VOLTAGE
REFERENCE
CIRCUIT
IOR
IOG
IOB
VREF
RSET
VAA
COMP
GND
IOB
03
09
7-
0
01
Figure 1.
GENERAL DESCRIPTION
The ADV7125 (ADV) 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
monolithic CMOS construction ensures greater functionality
with lower power dissipation. The ADV7125 is available in
48-lead LQFP and 48-lead LFCSP packages.
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.
ADV is a registered trademark of Analog Devices, Inc.