Product Details

Buffered Input Multiplexer/ADC Driver

The LT6556 is a complete 3-channel wideband video 2:1 multiplexer with internally set gain of one. This part is ideal as an input port receiver for HD component or high-resolution RGB video products. The basic application circuit is shown in Figure 35, with 1kΩ output loads to represent subsequent processing circuitry (the 1kΩ resistors aren’t needed, but part characterization was performed with that loading). One thing this diagram does not reflect is the convenient flow-through pin assignments of the part, in which no video traces need cross in the printed-circuit layout. This maximizes isolation between channels and sources for best picture quality.