DS91M125_14 Datasheet, PDF (1/15 Pages) Texas Instruments – 125 MHz 1:4 M-LVDS Repeater with LVDS Input

DS91M125
www.ti.com
SNLS290B – AUGUST 2008 – REVISED NOVEMBER 2009
DS91M125 125 MHz 1:4 M-LVDS Repeater with LVDS Input
Check for Samples: DS91M125
FEATURES
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•2 DC - 125 MHz / 250 Mbps low jitter, low skew,
low power operation
• Independent Driver Enable pins
• Outputs Conform to TIA/EIA-899 M-LVDS
Standard
• Controlled transition times minimize
reflections
• Inputs Conform to TIA/EIA-644-A LVDS
Standard
• 8 kV ESD on M-LVDS output 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, uTCA) backplanes
DESCRIPTION
The DS91M125 is a 1:4 M-LVDS repeater designed 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 DS91M125 channel is a 1:4 repeater that accepts M-LVDS/LVDS/CML/LVPECL signals and converts
them to M-LVDS signal levels. Each output has an associated independent driver enable pin. The DS91M125
input conforms to the LVDS standard.
The DS91M125 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.
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2
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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