DS10BR254 Datasheet, PDF (1/14 Pages) National Semiconductor (TI) – 1.5 Gbps 1:4 LVDS Repeater

December 14, 2007
DS10BR254
1.5 Gbps 1:4 LVDS Repeater
General Description
The DS10BR254 is a 1.5 Gbps 1:4 LVDS repeater optimized
for high-speed signal routing and distribution over FR-4 print-
ed circuit board backplanes and balanced cables. Fully dif-
ferential signal paths ensure exceptional signal integrity and
noise immunity.
The device has two different LVDS input channels and a se-
lect pin determines which input is active. A loss-of-signal
(LOS) circuit monitors both input channels and a unique
LOS pin is asserted when no signal is detected at that input.
Wide input common mode range allows the switch to accept
signals with LVDS, CML and LVPECL levels; the output levels
are LVDS. A very small package footprint requires a minimal
space on the board while the flow-through pinout allows easy
board layout. Each differential input and output is internally
terminated with a 100Ω resistor to lower device return losses,
reduce component count and further minimize board space.
Features
■ ^{DC - 1.5 Gbps low jitter, low skew, low power operation}
■ ^{Wide Input Common Mode Voltage Range allows for DC-}
coupled interface to LVDS, CML and LVPECL drivers
■ ^{Redundant inputs}
■ ^{LOS circuitry detects open inputs fault condition}
■ ^{Integrated 100Ω input and output terminations}
■ ^{8 kV ESD on LVDS I/O pins protects adjoining}
components
■ ^{Small 6 mm x 6 mm LLP-40 space saving package}
Applications
■ ^{Clock distribution}
■ ^{Clock and data buffering and muxing}
■ ^{OC-12 / STM-4}
■ ^{SD/HD SDI Routers}
Typical Application
© 2007 National Semiconductor Corporation 300078
30007803
www.national.com