DS91M124 Datasheet, PDF (2/14 Pages) Texas Instruments – DS91M124 125 MHz 1:4 M-LVDS Repeater with LVCMOS Input

DS91M124
November 9, 2009
125 MHz 1:4 M-LVDS Repeater with LVCMOS Input
General Description
The DS91M124 is a 1:4 M-LVDS repeater for driving and dis-
tributing 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 cur-
rent to handle double terminations that are required in multi-
point applications. Controlled transition times minimize re-
flections 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 inde-
pendent driver enable pins for each driver output.
The DS91M124 has a flow-through pinout for easy PCB lay-
out. It provides a new alternative for high speed multipoint
interface applications. It is packaged in a space saving
SOIC-16 package.
Features
■ ^{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
Typical Application
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