基于OMAPL138的高速信号处理系统信号完整性分析  

Analysis of signal integrity of high-speed signal processing system based on OMAPL138

作　　者：郑楠[1] 章明朝[1] 李佩玥[1] 闫丰[1] 

机构地区：[1]中国科学院长春光学精密机械与物理研究所应用光学国家重点实验室,吉林长春130033

出　　处：《现代电子技术》2013年第12期89-91,96,共4页Modern Electronics Technique

基　　金：国家科技重大专项项目(2009ZX02205)

摘　　要：以基于OMAPL138的高速数字信号处理系统为例,分析了信号完整性在高速电路设计中的重要性及问题产生原因,通过仿真提出了信号完整性问题中的反射和串扰的解决方案,并具体阐述了在实际工程设计中如何控制高速信号的时序,以及如何保证电源系统的完整性。实践证明,高速数字电路设计中,保证信号完整性可以有效的保障系统的稳定运行,提高设计的一次成功率。Taking the high-speed digital signal processing system based on OMAPL138 for example, the importance and causes of the problems of signal integrity in high-speed circuit design are analyzed. Solutions of reflection and crosstalk in signal integrity problems are proposed through the simulation. How to control the time-sequence of high-speed signal in actual engineering design and how to ensure the integrity of the power system are elaborated. The practice has proved that, during the high-speed digital circuit design, to ensure signal integrity can guarantee the stable operation of system effectively and improve the success rate of the first design.

关 键 词：信号完整性 OMAPL138 反射 串扰 电源完整性 

分 类 号：TN911.634[电子电信—通信与信息系统]