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| 嵌入式ARM系统PCB设计中信号完整性的研究 | |
| 引用本文： | 晁富邦,潘英俊,魏彪,解启瞻,蒋树庆. 嵌入式ARM系统PCB设计中信号完整性的研究[J]. 电子测试, 2008, 0(11): 60-64 |
| 作者姓名： | 晁富邦 潘英俊 魏彪 解启瞻 蒋树庆 |
| 作者单位： | 重庆大学光电工程学院,重庆,400044 |
| 摘 要： | 嵌入式高速系统PCB设计中信号完整性问题，是确保嵌入式系统安全可靠性的基础。本文针对嵌入式ARM系统PCB设计中，因电路布局和传输线阻抗失配造成信号反射而引起信号完整性的问题，通过对传输线效应和阻抗失配的理论分析，借助于Multisim2001仿真分析软件中的SPICE模型进行仿真研究。研究结果表明，阻抗匹配设计是解决传输线效应之信号完整性问题的关键，传输线模型的仿真结果与理论分析相符，基此，提出了避免传输线阻抗的不连续性和不要使用分支线的原理及方法，以期对嵌入式系统PCB设计具有一定的参考价值。 |
| 关 键 词： | 嵌入式ARM系统 PCB设计 信号完整性 阻抗匹配 |
Research of signal integrality in PCB design for embedded ARM system |
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| Chao Fubang,Pan Yingjun,Wei Biao,Xie Qizhan,Jiang Shuqing. Research of signal integrality in PCB design for embedded ARM system[J]. Electronic Test, 2008, 0(11): 60-64 | |
| Authors: | Chao Fubang Pan Yingjun Wei Biao Xie Qizhan Jiang Shuqing |
| Abstract: | Currently,the application of embedded system becomes more and more wide,but the signal integrality problem also becomes more and more outstanding as the embedded system fre- quency being high and the signal edge being steep in embedded system design.So,the paper mainly introduces reasons and solutions about impedance matching in PCB design,as well as the problems in circuit arragement,furthermore,Simulates the transmission line model,whose re- sults are in line with theoretical analysis. |
| Keywords: | embedded ARM system PCB design signal integrality impedance matching |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ | |