Oscillation signal generating circuit and oscillation signal generating method

Abstract

An oscillation signal generating circuit and an oscillation signal generating method are provided. The oscillation signal generating circuit includes a first circuit and a second circuit. The first circuit is configured to generate an output signal according to a reference clock signal and a feedback clock signal. The first circuit includes a voltage-controlled oscillator (VCO). The VCO is configured to output the output signal, and a frequency of the output signal is controlled by a control voltage. The second circuit includes a voltage compensation circuit and a maximum phase difference detector. When a maximum phase difference is detected by the maximum phase difference detector, the maximum phase difference detector controls the voltage compensation circuit to compensate the control voltage to a target voltage.

Dependencies are inferred from the claim text.