某型设备辐射发射超标与时钟电路设计研究  

Research on Radiation Emission Exceeding Standard and Clock Circuit Design of a Certain Equipment

作　　者：钟科 余晓梅 钟方旭 ZHONG Ke;YU Xiao-mei;ZHONG Fang-xu(Chengdu Sanlingjia Microelectronics Co.,Ltd.,Chengdu 61004l;The 30th Research Institute of China Electronics Technology Group,Chengdu 610041)

机构地区：[1]成都三零嘉微电子有限公司,成都610041 [2]中国电子科技集团第三十研究所,成都610041

出　　处：《环境技术》2023年第6期137-141,共5页Environmental Technology

摘　　要：通过分析某型通信设备辐射发射超标问题,重点研究了时钟电路与电磁场辐射超标之间的关联。结合该设备辐射发射超标的分析整改过程,从原理图元器件选择和PCB设计方面归纳出针对晶振及时钟电路几点EMC设计原则,便于工程师在产品设计前期综合考虑其电磁兼容问题,从源头上进行EMC设计,从而达到事半功倍的效果。By analyzing the excessive radiation emission of a certain type of communition equipment,The relationship between clock circuits and excessive electromagnetic field radiation is emphatically studied.Combined with the analysis and rectification process of excessive radiation emission of the equipment,Several EMC design principles are summarized from the aspects of schematic element device selection and PCB design,And this is convenient for engineers to comprehensively consider electromagnetic compatibility issues in the early stage of product design.Design from the source and achieve the effect of getting twice the result with half the effort.

关 键 词：辐射发射 时钟电路 布局布线 原理图 

分 类 号：TM937[电气工程—电力电子与电力传动]