| 高速PCB中过孔引起的同步开关噪声抑制研究 |
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| 引用本文： | 刘永勤.高速PCB中过孔引起的同步开关噪声抑制研究[J].渭南师范学院学报,2011(12):42-45. |
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| 作者姓名： | 刘永勤 |
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| 作者单位： | 渭南师范学院物理与电气工程学院,陕西渭南,714000 |
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| 基金项目： | 陕西省教育厅科研计划项目(11JK0936) |
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| 摘 要： | 高速PCB中，由于过孔数量较多导致信号产生严重畸变．文章首先分析了过孔对高速信号质量的影响，然后通过在过孔周围添加去耦电容器来抑制同步开关噪声（SSN）．结果表明，在过孔周围添加去耦电容器可以有效地减小同步开关噪声，使得信号波动峰值减小，提高了信号质量．
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| 关 键 词： | 过孔 去耦电容器 同步开关噪声 |
The Study of the Simultaneous Switching Noise Suppression Caused by Vias in High-speed Printed Circuit Boards |
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| LIU Yong-qin.The Study of the Simultaneous Switching Noise Suppression Caused by Vias in High-speed Printed Circuit Boards[J].Journal of Weinan Teachers College,2011(12):42-45. |
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| Authors: | LIU Yong-qin |
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| Institution: | LIU Yong-qin(School of Physics and Electrical Engineering,Weinan Teachers University,Weinan 714000,China) |
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| Abstract: | In high-speed Printed Circuit Boards,due to the large number of vias leading to serious distortion of the signal.The effects of the vias on the high-speed signals was analyzed firstly,and then the signal quality was analyzed after adding decoupling capacitors around the vias.The results show that adding decoupling capacitors around the vias can effectively reduce the simultaneous switching noise(SSN),besides,the peak fluctuations of signals can be reduced and the signal quality is improved. |
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| Keywords: | vias decoupling capacitors simultaneous switching noise(SSN) |
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