Patent ID: 11387841

Abstract:
An apparatus for interpolating between a first signal and a second signal is provided. The apparatus includes a first plurality of interpolation cells configured to generate a first interpolation signal at a first node. At least one of the first plurality of interpolation cells is configured to supply, based on a first number of bits of a control word, at least one of the first signal and the second signal to the first node. The apparatus further includes a second plurality of interpolation cells configured to generate a second interpolation signal at a second node. At least one of the second plurality of interpolation cells is configured to supply, based on a second number of bits of the control word, at least one of the first signal and the second signal to the second node. The apparatus additionally includes an interpolation circuit configured to weight the second interpolation signal based on a weighting factor, and to combine the first interpolation signal and the weighted second interpolation signal to generate a third interpolation signal.