The DS25BR204 is a 3.125 Gbps 1:4 LVDS repeater optimized for high-speed signal routing and switching over lossy 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 line determines which input is active. Both inputs have programmable equalization providing maximum signal strength. A loss-of-signal (LOS) circuit monitors both input channels and a unique LOS pin reports 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 100 resistor to lower device return losses, reduce component count and further minimize board space.