Detection circuit of clock anomaly and method, clock circuit, chip and radar

Abstract

A detection circuit of clock anomaly and method, a clock circuit, a chip, and a radar are provided. The detection circuit of clock anomaly includes: a first clock frequency determining unit, configured to determine a first clock frequency of a received first clock signal; a reference determining unit, configured to determine a reference corresponding to the first clock signal, where the reference is determined based on a second clock signal or a timestamp; and a clock anomaly detection unit, connected to the first clock frequency determining unit and the reference determining unit separately and configured to perform anomaly detection on the first clock signal based on the first clock frequency and the reference. This application can improve reliability of the clock signal, thereby improving personal safety and property safety of a user.