基于ARM11的高速PCB设计技术的研究及实现

Research and implementation of high-speed PCB design technology based on ARM11

介绍了一种基于嵌入式处理器S3C6410的高速印制电路板设计技术。通过对高速电路产生电磁干扰、反射、振铃和串扰等信号完整性问题的原理进行分析,提出削弱或消除以上噪声的方法。采用Mentor Graphics公司的PADS软件绘制电路原理图和PCB,借助该公司的Hyper Lynx仿真软件进行前端Line Sim和后端Board Sim可靠性验证。设计的电路板通过电磁兼容测试,表明该方法能够有效抑制噪声,增强高速数字电路设计的稳定性,提高产品设计的成功率。

Research and realization of high-speed PCB（ printed circuit board） design technology based on embedded processor S3C6410 is introduced in this paper. By analyzing the principles of signal integrity problems generated by high-speed circuit such as electromagnetic interference（ EMI）,reflections,ringing and crosstalk,the paper proposes the method to weaken or eliminate the above noise. The schematics and PCB were drawn by using PADS software. The reliability of the design was verified by the simulation software Hyper Lynx,including the font-end Line Sim and backend Board Sim. The electromagnetic compatibility test shows that this method can suppress noise effectively,enhance the reliability of high-speed digital circuit design,and increase the success rate of product design.