RT

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Line Card in SLOT 1

Z0

BACKPLANE

DS91M124

Line Card in SLOT N-1

M-LVDS Receivers

RT = ZLOADED

Line Card in SLOT N

M-LVDS Receivers

RT

RT

Z0

RT

RT

Z0

RT

RT

Z0

DS91M124

www.ti.com

SNLS287E – AUGUST 2008 – REVISED APRIL 2013

DS91M124 125 MHz 1:4 M-LVDS Repeater with LVCMOS Input

Check for Samples: DS91M124

1

FEATURES

DESCRIPTION

The DS91M124 is a 1:4 M-LVDS repeater for driving

2

•

DC - 125 MHz / 250 Mbps Low Jitter, Low

and distributing clock or data signals to up to four

Skew, Low Power Operation

multipoint networks.

•

Independent Driver Enable Pins

M-LVDS (Multipoint LVDS) is a new family of bus

•

Conforms to TIA/EIA-899 M-LVDS Standard

interface

devices

based

on

LVDS

technology

•

Controlled Transition Times Minimize

specifically designed for multipoint and multidrop

Reflections

cable and backplane applications. It differs from

standard LVDS in providing increased drive current to

•

8 kV ESD on M-LVDS I/O Pins Protects

handle double terminations that are required in multi-

Adjoining Components

point

applications.

Controlled

transition

times

•

Flow-Through Pinout Simplifies PCB Layout

minimize reflections that are common in multipoint

•

Industrial Operating Temperature Range

configurations due to unterminated stubs.

(

−40°C to +85°C)

A single DS91M124 channel is a 1:4 repeater that

•

Available in a Space Saving SOIC-16 Package

accepts LVTTL/LVCMOS signals at the driver inputs

and converts them to differential M-LVDS signal

APPLICATIONS

levels. It features independent driver enable pins for

each driver output.

•

Multidrop / Multipoint Clock and Data

Distribution

The DS91M124 has a flow-through pinout for easy

PCB layout. It provides a new alternative for high

•

High-Speed, Low Power, Short-Reach

speed multipoint interface applications. It is packaged

Alternative to TIA/EIA-485/422

in a space saving SOIC-16 package.

•

Clock Distribution in AdvancedTCA (ATCA)

and MicroTCA (

μTCA) Backplanes

Typical Application

1

Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of

Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.

2

All trademarks are the property of their respective owners.

PRODUCTION DATA information is current as of publication date.

Copyright © 2008–2013, Texas Instruments Incorporated

Products conform to specifications per the terms of the Texas

Instruments standard warranty. Production processing does not

necessarily include testing of all parameters.