DS91M124_13 Datasheet, PDF (1/15 Pages) Texas Instruments – 125 MHz 1:4 M-LVDS Repeater with LVCMOS Input

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
FEATURES
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•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.
Typical Application
Line Card in SLOT 1
DS91M124
Line Card in SLOT N-1
M-LVDS Receivers
Line Card in SLOT N
M-LVDS Receivers
R_T
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R_T = Z_LOADED
BACKPLANE
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PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
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