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本帖最后由 紫菁 于 2017-9-18 13:46 编辑
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主标题: 高速电路的接地规则: S; P# A# M! ?5 P$ }
副标题: 布局和接线在视频转换器电路中至关重要: O# J1 i8 @' }* g
怎样将干扰降到最低
- N+ I0 J! |4 E, `( d# i3 M作者: Don Brockman, Arnold Williams) [" t0 {# y& a! A* F! ?
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译者: jz0095, IC921合译# V# U9 Y" E- [ s! E; f6 a
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% J' g" I1 ^! k5 ]1 k# B3 G3 KIn 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
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1. Alan Rich, “Understanding Interference-Type Noise,”Analog Dialogue 16-3, 1982, pages 16-19
2 f7 u9 }' \" p- q/ _ e$ L+ o) {2. Alan Rich, “Shielding and Guarding,” Analog Dialogue 17-1, 1983, pages 8-13.
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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。
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(引用文章), a% U2 n/ _9 \$ n: Z# J
1. Alan Rich, “了解干扰类噪音”Analog Dialogue 16卷-3, 1982年, 16-19页
$ v9 z9 e$ @8 B2 y% R2. Alan Rich, “屏蔽与接地”, Analog Dialogue 17卷-1, 1983年, 8-13页.
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