高速电路的接地规则

TomPCB

主标题:    高速电路的接地规则 副标题:    布局和接线在视频转换器电路中至关重要 0 p$ k5 g9 P* q! ^! M           怎样将干扰降到最低 作者:    Don Brockman, Arnold Williams 译者:    jz0095, IC921合译 + j* _* W* M8 u' ~* K: i( H & N$ i# G+ V; U6 L% L0 a# W2 Q[001] In recent issues, Analog Dialogue has dealt extensively with topics in shielding and grounding,[1,2] emphasizing the techniques needed to protect the integrity and precision of analog signals in the dc and audio-frequency domain from inteRFering signals, whether at line frequency or at much higher frequencies. To complement those articles, we suggest here the elements of good practice for high-resolution “video speed” converters, i.e., converters of 10-bit or greater resolution, operating at word rates above 1 MHz , @' J3 H! \) a, y. d----------------------------------------- 1. Alan Rich, “Understanding Interference-Type Noise,”Analog Dialogue 16-3, 1982, pages 16-19 , I5 Q# A3 ~- _2. Alan Rich, “Shielding and Guarding,” Analog Dialogue 17-1, 1983, pages 8-13. 1 ?, V: B- O; o! ^4 s 近几期的Analog Dialogue 着重对屏蔽和接地问题进行了广泛的探讨，强调这些技术在直流和音频范围内对保证模拟信号的完整，精确，免受工频或更高频率的干扰方面将起到作用。这里我们建议将本文中有益于高分辨率“视频”转换器，即10位或10位以上精度，字节速率在1MHz以上的方法作为对已发表文章的补充。 ---------------------------------------- 0 ?  Z! z/ g1 Q! }8 m+ q- A(引用文章) 1. Alan Rich, “了解干扰类噪音”Analog Dialogue 16卷-3, 1982年, 16-19页 5 n8 e, m$ z+ g- x2. Alan Rich, “屏蔽与接地”, Analog Dialogue 17卷-1, 1983年, 8-13页. % M7 F" x6 Q, v7 R5 y: e% \ 游客，如果您要查看本帖隐藏内容请回复

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