Patent ID: 9137084
Filing Date: 2015-09-15
Classification: H03F,H04L

Abstract:
1. A digital-to-time converter (DTC), comprising: a coarse phase segment generating a coarse phase signal, the coarse phase signal comprising an even phase signal and an odd phase signal; and a digitally controlled edge interpolator comprising a fine phase segment comprising an even coarse phase input and an odd coarse phase input, the even coarse phase input receiving the even coarse phase signal, the odd coarse phase input receiving the odd coarse phase signal, the fine phase segment responsive to a fine phase control signal to generate a fine phase output signal that is an interpolation of the even phase signal and the odd phase signal; wherein the digitally controlled edge interpolator comprises an array of inverters having inputs fed by at least two or more adjacent coarse delay signals from the coarse phase segment to provide the fine phase output signal that is an interpolation of the even phase signal and the odd phase signal.