随着集成工艺水平的日益提高,不管是线性模拟锁相环还是数字锁相环,都以组件形式出现,这给使用带来了极大的方便。从而在现代各种电子设备中被广泛应用。而且它们所组成的锁相系统常作为一个部件用于接收机中,这在很大程度上,就改善和提高了整机性能。下面介绍用于车辆测速雷达中的由数字锁相环CD4046组成的锁相跟踪滤波器。 With the increasing level of integrated technology, whether linear analog phase-locked loop or digital phase-locked loop, are in the form of components, which brought great convenience to use. Thus in a variety of modern electronic devices are widely used. And they form a phase-locked system often used as a component of the receiver, which to a large extent, to improve and improve the overall performance. The following is used in vehicle speed radar digital phase-locked loop CD4046 composed of phase-locked tracking filter.