Patent ID: 6995618
Filing Date: 2006-02-07
Classification: H03L,H04L

Abstract:
1. A phase-locked loop (PLL) for producing a phase-locked oscillation, the PLL comprising: a phase detection module for producing a current representing a phase difference between a feedback signal and a reference signal; a loop filter operably coupled to receive the current and for converting the current into a control voltage; and a voltage controlled oscillator (VCO) operably coupled to receive the control voltage at a VCO input and to produce an oscillation signal responsive to the control voltage wherein the oscillation signal is provided to the phase detection module in a first feedback loop, wherein: wherein the phase adjustment module further includes a plurality of sampling modules coupled to receive the oscillation signal, wherein each sampling module of the plurality of sampling modules samples the oscillation signal over a different time interval to produce a sampled voltage corresponding to a change in the period of the oscillation signal.