MAX11503 View Datasheet(PDF) - MAXWELL TECHNOLOGIES

Part Name

Description

Manufacturer

MAX11503

Video Y/C Summer with Driver and Chroma Mute

MAXWELL TECHNOLOGIES 

19-4031; Rev 0; 2/08

Video Y/C Summer with

Driver and Chroma Mute

General Description

The MAX11503 is a low-power video amplifier with a

Y/C summer and chroma mute. The device accepts an

S-video or Y/C input and sums the luma (Y) and chroma

(C) signals into a composite CVBS signal which can be

connected directly to a TV monitor. The MAX11503 drives

two terminated 75Ω video coax cables.

The MAX11503 features include chroma mute, power

save, and SAG correction. Chroma mute disables the

chroma buffer. If the device is used to combine Y and

C signals in a camera application, the chroma mute

may be used in low-light situations. This removes all

chroma including burst which causes a downstream

composite video decoder to interpret the video signal

as luminance only, thus improving image quality. SAG

correction allows small output capacitors to be used in

AC-coupled output applications.

The MAX11503 operates from a single 2.7V to 5.25V

supply, is specified over the extended -40°C to +85°C

temperature range, and is available in a small 8-pin

µMAX® package.

Applications

Security Cameras

CCD Cameras

Digital Cameras

Portable Media Players

VCC

Features

♦ Low Operating Voltage

♦ Internal Y/C Summer with Chroma Mute Capability

♦ AC- or DC-Coupled Inputs

♦ AC- or DC-Coupled Outputs

♦ Output Buffer Drives Two Terminated 75Ω Video

Coax Cables

♦ SAG Correction Allows for Small Output

Capacitors

♦ Low-Power Standby, 0.5µA at 3.0V

Ordering Information

PART

TEMP RANGE

MAX11503EUA+ -40°C to +85°C

+Denotes lead-free package.

*EP = Exposed pad.

PIN-

PACKAGE

8 µMAX-EP*

PKG

CODE

U8E+2

Pin Configuration appears at end of data sheet.

Functional Diagram

0.1µF

1µF

SYSTEM

ON A

CHIP

(SOC) Y

PSAVE

0.1µF*

YIN

TRANSPARENT

CLAMP

BUFFER

MAX11503

Σ

+6dB

68µF*

OUT

75Ω

CIN

C

CMUTE

AC-COUPLING

AND BIAS

BUFFER

SAG

75Ω

33µF*

GND

*REMOVE AND SHORT FOR DC-COUPLED OPERATION

µMAX is a registered trademark of Maxim Integrated Products, Inc.

________________________________________________________________ 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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