高速数字PCB板设计中的信号完整性分析  

Analysis of Signal Integrality in the Design of High Speed Digital PCB

作　　者：王爱珍[1] 

机构地区：[1]忻州师范学院,山西忻州034000

出　　处：《现代电子技术》2009年第1期177-180,共4页Modern Electronics Technique

基　　金：忻州师范学院科研基金资助项目

摘　　要：当今飞速发展的电子设计领域,信号频率的不断提高,印制电路板变小,布线密度加大都使得信号完整性问题越来越成为一个值得关注的问题。尤其是串扰和反射,常造成数字电路的误动作,从信号完整性的定义出发,介绍了信号完整性的主要问题,提出了解决串扰和反射的方法,并在Altium Designer环境下对一种端接技术进行了验证,结果表明:合理的端接可以改善信号完整性中的反射现象。With the development of electrical design, higher signal frequency, smaller PCB board and bigger routing density, the signal integrity becomes more and more important. Especially crosstalk and reflection,which often lead to the error of digital circuits. Its main problems on the basis of the definition of signal integrity is introduced, the solving- methods of the crosstalk and reflection are brought forward, the reliability is proved by the tool of Ahium Designer, the results indicate proper termination can improve the reflection.

关 键 词：PCB板 信号完整性 反射 串扰 

分 类 号：TP274[自动化与计算机技术—检测技术与自动化装置]