The MAX4029 evaluation kit (EV kit) is a fully assembled and tested surface-mount circuit board that contains the MAX4029, which is a four-channel, 2:1, voltage-feedback multiplexer-amplifier with input clamps and a fixed gain of +2V/V (6dB). Channel 1 inputs are clamped to the video sync tip of their input signals, while the remaining inputs can be clamped to either the video sync tip of their respective input signals or the key clamp voltage. The latter is referred to as key clamp. The EV kit operates from a single +5V power supply.