CDCLVD1204RGTT (TEXAS INSTRUMENTS)

The CDCLVD1204RGTT is a Clock Buffer distributes one of two selectable clock inputs, (IN0, IN1), to 4 pairs of differential LVDS clock outputs (OUT0, OUT3) with minimum skew for clock distribution. It can accept two clock sources into an input multiplexer. The inputs can either be LVDS, LVPECL or LVCMOS. It is specifically designed for driving 50R transmission lines. In case of driving the inputs in single ended mode, the appropriate bias voltage (VAC_REF) should be applied to the unused negative input pin. The IN_SEL pin selects the input which is routed to the outputs. If this pin is left open it disables the outputs (static). The part supports a fail-safe function. The device incorporates an input hysteresis which prevents random oscillation of the outputs in the absence of an input signal.