| 基于DSP的USB通信接口的EMC设计 |
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| 引用本文： | 唐俊,党瑞荣,张瑞萍,高国旺,谢雁.基于DSP的USB通信接口的EMC设计[J].电子测试,2008(4):34-37. |
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| 作者姓名： | 唐俊 党瑞荣 张瑞萍 高国旺 谢雁 |
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| 作者单位： | 1. 中北大学电子测试技术国家重点实验室,太原,030051;西安石油大学,西安,710065
2. 西安石油大学,西安,710065 |
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| 摘 要： | 在测量仪器中为了实现稳定高速的USB通信就必须考虑电磁干扰问题.本文针对系统的电磁兼容问题,提出了提高系统电磁兼容性的具体措施,包括滤波技术、接地设计、电磁屏蔽以及PCB设计;介绍了基于DSP的USB通信接口设计方案,其中应用了USB接口芯片.在电磁干扰的工作环境下USB通信平均传输率能稳定达到1 MB/s以上,表明这些提高系统电磁兼容性的措施是有效的.系统通过了电磁兼容和静电抗干扰的认证测试,达到了工程要求.
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| 关 键 词： | 电磁兼容 电磁干扰 |
EMC design of USB communication interference based on DSP |
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| Tang Jun,Dang Ruirong,Zhang Ruiping,Gao Guowang,Xie Yan.EMC design of USB communication interference based on DSP[J].Electronic Test,2008(4):34-37. |
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| Authors: | Tang Jun Dang Ruirong Zhang Ruiping Gao Guowang Xie Yan |
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| Institution: | Tang Jun National Key Laboratory For Electronic Measurement Technology North University of China,Taiyuan 030051,China Dang Ruirong Zhang Ruiping Gao Guowang Xie Yan Xi\'an Shiyou University,Xi\'an 710065,China |
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| Abstract: | Electromagnetic interference must be considered in USB interface design of measure- ment instrument to realize high speed USB communication stably.In view of electromagnetic compatibility question in the system the measurements to improve the EMC of system were brought forward,which included filter technology,grounding design,electromagnetic shield and PCB design,moreover,the overall design scheme based on DSP was introduced for USB interface design in which USB interface IC was used.Average transmission ra... |
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| Keywords: | USB DSP |
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