MAX9539EUI Просмотр технического описания (PDF) - Maxim Integrated

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MAX9539EUI

Graphics Video Sync Adder/Extractor

Maxim Integrated 

19-0602; Rev 2; 1/07

EVAALVUAAILTAIOBNLEKIT

Graphics Video Sync Adder/Extractor

General Description

The MAX9539/MAX9540 chipset provides a 3-wire

(RGB) interface for 5-wire (RGBHV) video by adding

and extracting the H, V, and composite sync from the

graphics video signals. This chipset eliminates the

problem of sync-to-video timing (skew errors) in a 5-

wire interface, while reducing the number of channels

required to transport video signals.

The MAX9539 mixes the H and V sync signals and

adds them to create a 3-wire interface from a 5-wire

(RGBHV) input. The MAX9540 recovers the H and V

sync signals to create a 5-wire (RGBHV) interface from

the 3-wire input. The MAX9540 also provides a com-

posite sync output.

The chipset includes the MAX9539 sync adder and the

MAX9540 sync extractor with 180MHz large-signal

bandwidths to address display resolutions up to 1600 x

1200 at 85Hz for VGA-to-UXGA applications. Both

devices feature a DC restore function, which virtually

eliminates any changes in black level. The chipset uses

a proprietary H and V sync addition/extraction scheme

(true sync) to minimize skew errors.

The MAX9539/MAX9540 are available in 28-pin TSSOP

packages and are specified over the extended -40°C to

+85°C temperature range.

Applications

Enterprise Class (Blade) Servers

Laptop PCs

Web Appliances

Keyboard-Video-Mouse (KVM)

Features

o 3-Wire RGB to 5-Wire RGBHV Interface

o Supports VGA-to-UXGA Resolution

o Low Offset Voltage (±1mV)

o 180MHz Large-Signal Bandwidth

Ordering Information

PART

PIN-

PACKAGE

PKG

CODE

DESCRIPTION

MAX9539EUI+* 28 TSSOP

U28-3

Sync Adder

MAX9539EUI

28 TSSOP

U28-3

Sync Adder

MAX9540EUI+* 28 TSSOP

U28-3 Sync Extractor

MAX9540EUI

28 TSSOP

U28-3 Sync Extractor

Note: All devices are specified over the -40°C to +85°C oper-

ating temperature range.

+Denotes lead-free package.

*Future product—contact factory for availability.

Pin Configurations appear at end of data sheet.

Chipset Diagram

H

V

MAX9539

R

R

G

G

B

B

H

V

R

MAX9540

C

G

R

B

G

B

________________________________________________________________ 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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