Patent ID: 8373511

Claim:
A gain and phase noise controlled oscillator circuit, comprising: a variable electronic oscillator for generating a clock signal, wherein frequency of the clock signal is controlled at least by a sense voltage received by the variable electronic oscillator; wherein one or more capacitive loads are coupled to the variable electronic oscillator; and a tuning loop circuit coupled to the variable electronic oscillator, wherein the tuning loop circuit compares the sense voltage to a control voltage received by the tuning loop circuit and produces one or more correction signals based on the comparison, wherein the one or more capacitive loads change capacitance based on the one or more correction signals; wherein the tuning loop circuit comprises: a comparator to compare the sense voltage to the control voltage received by the tuning loop circuit, wherein the comparator detects a difference between the sense voltage and the control voltage and produces a difference signal based on the difference; and an integrator for accumulating the difference signal and producing the one or more correction signals based on the accumulation, wherein the integrator comprises an up/down thermometric counter.