1FEATURES

2• DC - 125 MHz / 250 Mbps Low Jitter, Low

Skew, Low Power Operation

• Independent Driver Enable Pins

• Conforms to TIA/EIA-899 M-LVDS Standard

• Controlled Transition Times Minimize

Reflections

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

Adjoining Components

Flow-Through Pinout Simplifies PCB Layout

• Industrial Operating Temperature Range

(−40°C to +85°C)

• Available in a Space Saving SOIC-16 Package

APPLICATIONS

• Multidrop / Multipoint Clock and Data

Distribution

• High-Speed, Low Power, Short-Reach

Alternative to TIA/EIA-485/422

• Clock Distribution in AdvancedTCA (ATCA)

and MicroTCA (μTCA) Backplanes

DESCRIPTION

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

and distributing clock or data signals to up to four

multipoint networks.

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

interface devices based on LVDS technology

specifically designed for multipoint and multidrop

cable and backplane applications. It differs from

standard LVDS in providing increased drive current to

handle double terminations that are required in multi•

point applications. Controlled transition times minimize reflections that are common in multipoint

configurations due to unterminated stubs.

A single DS91M124 channel is a 1:4 repeater that

accepts LVTTL/LVCMOS signals at the driver inputs

and converts them to differential M-LVDS signal

levels. It features independent driver enable pins for

each driver output.

The DS91M124 has a flow-through pinout for easy

PCB layout. It provides a new alternative for high

speed multipoint interface applications. It is packaged

in a space saving SOIC-16 package.