首页>
外国专利>
APPARATUS AND METHOD FOR VCO CALIBRATION USING FAST FREQUENCY COMPARISON BASED ON PHASE MANIPLUATION
APPARATUS AND METHOD FOR VCO CALIBRATION USING FAST FREQUENCY COMPARISON BASED ON PHASE MANIPLUATION
展开▼
机译:基于相控的快速频率比较进行VCO校准的装置和方法
展开▼
页面导航
摘要
著录项
相似文献
摘要
An apparatus and a method for calibrating a Voltage Controlled Oscillator (VCO) using a fast frequency comparison based on phase manipulation are provided. The calibrating apparatus includes a phase shifter for comparing an input reference frequency and an input divided frequency and shifting a phase of the reference frequency to make the phase of the reference frequency align with a phase of the divided frequency; a frequency comparator for determining which one of the phase-shifted reference frequency and the divided frequency is higher; and a cap-bank control for determining a frequency to use based on a comparison result of the frequency comparator.
展开▼