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

8

8

8

8

8

DATA

REGISTER

DAC

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

IOR

IOG

IOG

IOB

COMP

GND

IOB

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.