新型 CMOS 注入锁定振荡器电路的设计

Novel CMOS Injection Locked Oscillator Circuit

设计了一种新型ＣＭＯＳ注入锁定振荡器电路，它是一个由差分比较器和一串反相器所构成的变型环形振荡器．该振荡器的注入锁定特性是基于差分比较器的相移作用．它不仅具有良好的小信号自适应带宽特性，而且还能实现相干相位同步，它的一些基本特征类似于一阶锁相环．分析论证了它的基本原理及特性，并讨论了计算机电路模拟的结果．

A novel CMOS injection locked oscillator (ILO) is proposed.The basic operating principles and characteristics as well as the simulating results of the proposed ILO circuit are presented in this paper.The new CMOS ILO consists of a differential comparator and a chain of inverter.The new ILO not only has an excellent adaptive recovery ability for a small injected signal but also can perform a coherent phase synchronous function.It also possesses some characteristics similar to that of a phase lock loop(PLL).