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本帖最后由 紫菁 于 2017-9-18 13:46 编辑 ) V1 w% C1 i: e( Y) ]
+ ]# K/ \( j0 E# \+ z3 j主标题: 高速电路的接地规则; ~' Y- g% s6 _: |
副标题: 布局和接线在视频转换器电路中至关重要 q/ ]4 r5 S' @+ y$ |+ J$ y
怎样将干扰降到最低
, E4 H& i+ g0 F$ ^0 l作者: Don Brockman, Arnold Williams
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译者: jz0095, IC921合译9 R3 o" d% K" n4 I
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[001]
1 z$ m4 E9 |2 }2 X D6 NIn 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 MHz5 I' H5 ]' X8 n! d2 t$ p
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1. Alan Rich, “Understanding Interference-Type Noise,”Analog Dialogue 16-3, 1982, pages 16-192 p% Z9 F8 J- E
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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/ N! b4 X1 o# o( N% r* e& J+ d) P4 C2 x(引用文章)) Q% F( G- f3 R- ?
1. Alan Rich, “了解干扰类噪音”Analog Dialogue 16卷-3, 1982年, 16-19页
6 ]' e1 y2 l$ z, s* Y+ {4 p1 h: {( Y2. Alan Rich, “屏蔽与接地”, Analog Dialogue 17卷-1, 1983年, 8-13页.. f( w; ]# _0 c. }! p( Z" i8 M
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发表于 2016-8-20 14:52
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