首页>
外国专利>
Method and apparatus for enabling fast clock phase locking in a phase-locked loop
Method and apparatus for enabling fast clock phase locking in a phase-locked loop
展开▼
机译:用于在锁相环中实现快速时钟锁相的方法和装置
展开▼
页面导航
摘要
著录项
相似文献
摘要
In a method and apparatus for enabling fast clock phase locking in a phase-locked loop, a sampling clock generator generates sampling clock signals in response to an oscillator output of the phase-locked loop. A detector unit samples an input digital signal to the phase-locked loop at clock edges of the sampling clock signals to obtain multiple sampling points of the input digital signal, and compares logic levels of each temporally adjacent pair of the sampling points to detect presence of a logic level transition in the input digital signal. A selector unit is controlled by the detector unit to select one of the sampling clock signals, which has one of the clock edges thereof defining an interval that was detected to have occurrence of the logic level transition in the input digital signal, and which is subsequently provided to the phase-locked loop as an input phase-locking clock signal.
展开▼