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4:1 RGB Multiplexer

4:1 RGB Multiplexer

Since the LT6555 includes an enable control line, it is possible to extend the selection range of the multiplexer. This circuit shows two LT6555 devices in a configuration that provides 4:1 selection of RGB sources to an RGB output port (these could also be YPBPR signals as well, depending on the source). To avoid frequency response anomalies, the two devices should be closely located so that the output lines between parts are as short as possible.