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MAX9512ATE

Video Filter Amplifier with SmartSleep and Y/C Mixer Circuit

Maxim Integrated 

19-0535; Rev 2; 2/09

Video Filter Amplifier with SmartSleep

and Y/C Mixer Circuit

General Description

The MAX9512 video filter amplifier with SmartSleep and

Y/C mixer is ideal for portable media players (PMPs),

portable DVD players, and set-top boxes (STBs). The

inputs can be directly connected to the digital-to-analog

converter (DAC) outputs. The dual reconstruction filters

remove high-frequency signals above 6.75MHz. The

Y/C-to-CVBS mixer creates a composite video signal

from luma and chroma. The four amplifiers each have

6dB of gain. The outputs can be DC-coupled to a load of

75Ω, which is equivalent to two video loads, or AC-cou-

pled to a load of 150Ω.

The SmartSleep circuitry intelligently reduces power

consumption based on the presence of the input signal

and the output loads. When the MAX9512 does not

detect the presence of sync on luma, the supply cur-

rent is reduced to less than 7µA. The device only

enables a video amplifier when there is an active video

input signal and an attached load. The video amplifier

remains on while a load is connected. If the load is dis-

connected, the video amplifier is turned off.

The MAX9512 operates from a 2.7V to 3.6V single sup-

ply and is offered in a small, 16-pin TQFN (3mm x

3mm) package. The device is specified over the -40°C

to +125°C automotive temperature range.

Applications

Portable Media Players

(PMPs)

Portable DVD Players

Set-Top Boxes (STBs)

Portable Applications

Pin Configuration

TOP VIEW

12 11 10 9

VDD 13

N.C. 14

SMARTSLEEP 15

MAX9512

8 GND

7 N.C.

6 SHDN

CIN 16 +

5 N.C.

1234

THIN QFN

(3mm x 3mm)

Features

♦ SmartSleep Feature Detects Input Signal and

Output Load Status to Reduce Power

Consumption

♦ Dual Standard-Definition Video Reconstruction

Filters with 6.75MHz Passband

♦ Luma and Chroma Inputs

♦ Y/C-to-CVBS Mixer

♦ Luma, Chroma, and Two Composite Outputs

♦ Supports Two Video Loads at Each Output

(DC-Coupled)

♦ 2.7V to 3.6V Single-Supply Operation

Ordering Information

PART

PIN-PACKAGE

TOP MARK

MAX9512ATE+

16 TQFN-EP*

(3mm x 3mm)

AEN

Note: All devices specified over the -40°C to +125°C operating

temperature range.

+Denotes lead(Pb)-free/RoHS-compliant package.

*EP = Exposed pad.

Block Diagrams

BUFFER

CIN

LPF

LOAD SENSE

COUT

6dB

BUFFER

YIN

LPF

LOAD SENSE

6dB

YOUT

SMARTSLEEP

SHDN

ACTIVE VIDEO

DETECT

CONTROL

LOGIC

MAX9512

LOAD SENSE

6dB

CVBSOUT1

LOAD SENSE

6dB

CVBSOUT2

Block Diagrams continued at end of data sheet.

________________________________________________________________ Maxim Integrated Products 1

For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642,

or visit Maxim’s website at www.maxim-ic.com.

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