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本帖最后由 紫菁 于 2017-9-18 13:46 编辑 ; I5 ], k+ M/ u4 V" m. h( B/ @ y
" m9 d& t! R$ z! `0 ?& U主标题: 高速电路的接地规则
: v" e0 h" I( Z副标题: 布局和接线在视频转换器电路中至关重要
1 e, e) t; i8 h! h+ c 怎样将干扰降到最低6 w6 V5 {& z, c. i
作者: Don Brockman, Arnold Williams
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2 h, Y# f! l$ I" u3 W4 e译者: jz0095, IC921合译( U1 E1 n5 M K8 }) F$ h
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9 A9 r. _1 y3 c/ }3 N8 JIn 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" b' O# a/ L$ ~+ l: r
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1. Alan Rich, “Understanding Interference-Type Noise,”Analog Dialogue 16-3, 1982, pages 16-19
# K5 R9 t c+ E( ~$ x1 g2. 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)
6 |, l* G0 w9 h4 W& N; f* R. N1 [" {1. Alan Rich, “了解干扰类噪音”Analog Dialogue 16卷-3, 1982年, 16-19页- ]' | z# ?; ]: f$ F' l
2. Alan Rich, “屏蔽与接地”, Analog Dialogue 17卷-1, 1983年, 8-13页.
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发表于 2016-8-20 14:52
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