In order to accommodate a higher number of inputs, the LMH6572 and the 6574 can be used with their output tied to more MUXs. The circuit shown here allows selection from four RGB sources by using two LMH6572s. Two logic levels, S0 and S1 on the lower left-hand side, select between the four channels. An optional simple delay circuit, outlined in the data sheet itself, could be used to ensure brake-before-make action such that no two outputs appear at the output at the same time. The logic truth table is shown in the lower right-hand side of this schematic.