摘要
通过一个实际的辐射发射超标案例,介绍了一种分析问题的思路以及查找辐射发射源的方法,并提出降低PCB板辐射发射的改进方案,以此说明了高速信号如时钟等走线设计的EMC规则。为遇到类似问题的设计人员提供一种解决相关问题的思路。
This article describes a solution to reduce radiated emission of clock circuit on PCB with a train of thought and a method to find out radiation source through a real case. It shows how to design high speed signal, especially layout of clock circuit etc., which will benefit other designers.
