Patent ID: 8773209

Claim:
A voltage-controlled oscillator module, comprising: a voltage-controlled oscillator unit, configured to generate a frequency signal according to a control voltage; and a gain adjustment unit, coupled to the voltage-controlled oscillator unit and configured to receive a first adjustment voltage, a second adjustment voltage, and a reference voltage, thereby adjusting the control voltage to adjust a frequency value of the frequency signal, wherein the gain adjustment unit comprises: an adjustment circuit unit, comprising: a first adjustment unit, configured to receive the first adjustment voltage and the reference voltage, thereby adjusting the control voltage to adjust the frequency value of the frequency signal based on a first voltage-frequency curve between the frequency value of the frequency signal and a voltage value of the first adjustment voltage; and a second adjustment unit, configured to receive the second adjustment voltage and the reference voltage, thereby adjusting the control voltage to adjust the frequency value of the frequency signal based on a second voltage-frequency curve between the frequency value of the frequency signal and a voltage value of the second adjustment voltage, wherein the first voltage-frequency curve is different from the second voltage-frequency curve; and a reference circuit unit, coupled to the first adjustment unit and the second adjustment unit and configured to receive the reference voltage, thereby adjusting the control voltage to reduce an influence of noise of the unit voltage on the frequency signal.