FREQUENCY DIVIDER, CLOCK GENERATING APPARATUS, AND METHOD CAPABLE OF CALIBRATING FREQUENCY DRIFT OF OSCILLATOR

摘要

A clock generating apparatus includes an oscillator and a frequency synthesizer. The oscillator is utilized for generating a reference clock signal. The frequency synthesizer is coupled to the oscillator and utilized for synthesizing a target clock signal in accordance with the reference clock signal and a frequency division factor that has been adjusted or compensated, and outputting the target clock signal as an output of the clock generating apparatus.

主权项

1. A clock generating apparatus, comprising:
an oscillator, for generating a reference clock signal; and a fractional divider, directly or indirectly coupled to the oscillator, for receiving the reference clock signal and outputting a target clock signal, wherein the target clock signal is adjusted according to at least a process related parameter and/or at least a temperature related parameter, wherein the fractional divider is an open-loop circuit.