|
EDA365欢迎您登录!
您需要 登录 才可以下载或查看,没有帐号?注册
x
本帖最后由 紫菁 于 2017-9-18 13:46 编辑 6 U# Z- S% q# g7 s# Q
8 q9 O, E3 \" R' c* K1 e) A
主标题: 高速电路的接地规则' @- |* e3 ]+ Q- y/ S! M
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 _, ~7 x; B, y
作者: Don Brockman, Arnold Williams- O; E0 `- H0 X7 N
9 b1 z; a! p. b) w! w+ \; ^! H
译者: jz0095, IC921合译
+ j* _* W* M8 u' ~* K: i( H
& N$ i# G+ V; U6 L% L0 a# W2 Q[001]' G" `) |; v% p: _+ O. ]5 E. X5 T
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----------------------------------------- # l3 P) j o! _
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" Z% k) M+ J) t, T/ V9 v) R: H
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 A% y& O0 M$ k& `, Y& _+ ?: }% H+ b
----------------------------------------
0 ? Z! z/ g1 Q! }8 m+ q- A(引用文章)% v+ _0 g# m4 q4 b- Y4 G
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% \: y+ t5 A+ B7 K( ^5 o7 {# w
|
|
, B3 f' }+ t# S- o E
|
1 M9 I: Z; @! q, _/ N* ?$ t" S% W* Z% { |
* ~; Q- H" E) A% w& j2 l7 M$ K |
|
|