DS10BR254 Datasheet | National Semiconductor

Description The DS10BR254 is a 1.5 Gbps 1:4 LVDS repeater optimized for high-speed signal routing and distribution over FR-4 printed circuit board backplanes and balanced cables. Fully differential signal paths ensure exceptional signal integrity and noise immunity. The device has two different LVDS input channels and a select 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 mon 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 ponent count and further minimize board space. Features - DC - 1.5 Gbps low jitter, low skew, low power operation - Wide Input mon 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 k V ESD on LVDS I/O pins protects adjoining ponents 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 .national. Ordering Code NSID .. DS10BR254TSQ Function 1:4 Repeater Block Diagram Connection Diagram DS10BR254 Pin Diagram .national. Pin Descriptions Pin Name IN1+, IN1-, IN2+, IN2-, OUT0+, OUT0-, OUT1+, OUT1-, OUT2+, OUT2-, OUT3+, OUT3SEL_in LOS1, LOS2 PWDN0, PWDN1, PWDN2, PWDN3 PWDN VDD GND NC Pin 4, 5, 6, 7, 29, 28, 27, 26, 24, 23, 22, 21 14 37, 36 35, 34 33, 32 38 I/O, Type I, LVDS O, LVDS Pin Description Inverting and non-inverting high...