专利范畴本专利属于频率合成器的范畴。特别适用于使用锁相环的频率合成器。过去技术的描述频率合成器是一个从单一、稳定、精确的频率标准信号中,产生出一系列离散的大量的频率的技术,一般都使用锁相坏,这种环路能精密地锁定在予定频率上。 Patent category This patent belongs to the category of frequency synthesizer. Especially suitable for use PLL frequency synthesizer. Description of the Prior Art A frequency synthesizer is a technique that produces a series of discrete, large numbers of frequencies from a single, stable, and accurate frequency standard signal and generally uses the wrong phase lock, which can be precisely locked to a predetermined Frequency.