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

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

Video Filter Amplifier with SmartSleep

and Y/C Mixer Circuit

________________________________________________________________

Maxim Integrated Products

1

TOP VIEW

15

16

+

14

13

5

6

7

8

13

N.C.

4

12

10

9

SMARTSLEEP

CIN

GND

N.C.

SHDN

N.C.

MAX9512

2

11

THIN QFN

(3mm x 3mm)

Pin Configuration

CIN

YIN

COUT

YOUT

CVBSOUT1

SHDN

ACTIVE VIDEO

DETECT

SMARTSLEEP

CVBSOUT2

LPF

CONTROL

LOGIC

BUFFER

LOAD SENSE

6dB

LPF

BUFFER

LOAD SENSE

6dB

LOAD SENSE

6dB

LOAD SENSE

6dB

MAX9512

Block Diagrams

Ordering Information

19-0535; Rev 2; 2/09

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

temperature range.

+

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

*

EP = Exposed pad.

PART

PIN-PACKAGE

TOP MARK

MAX9512ATE+

16 TQFN-EP*

(3mm x 3mm)

AEN

Block Diagrams continued at end of data sheet.

Portable Media Players

(PMPs)

Portable DVD Players

Set-Top Boxes (STBs)

Portable Applications

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.