OSCILLATOR CIRCUIT AND CONFIGURATION METHOD THEREOF

摘要

The present disclosure provides an oscillator circuit. The oscillator circuit includes a signal selecting unit, a control voltage generating unit, a reference voltage generating unit, an output adjusting unit, and a frequency-dividing unit. The signal selecting unit is configured to select a reference signal or a frequency-divided signal as an input signal. The control voltage generating unit is configured to generate a control voltage based on the input signal. The reference voltage generating unit is configured to generate a reference voltage. The output adjusting unit is configured to generate an output signal based on the control voltage and the reference voltage. The frequency-dividing unit is configured to divide the frequency of the output signal and generate the frequency-divided signal.

主权项

1. An oscillator circuit, comprising:
a signal selecting unit, configured to select a reference signal or a frequency-divided signal as an input signal; a control voltage generating unit, configured to generate a control voltage based on the input signal, wherein the control voltage has a value associated with a frequency of the input signal; a reference voltage generating unit, configured to generate a reference voltage, wherein the reference voltage has a value equal to the value of the control voltage when the input signal is the reference signal; an output adjusting unit, configured to generate an output signal based on the control voltage and the reference voltage, wherein the output signal has a frequency associated with a voltage difference between the reference voltage and the control voltage, and the frequency of the output signal maintains unchanged if the voltage difference is zero; and a frequency-dividing unit, configured to divide the frequency of the output signal and generate the frequency-divided signal.