标题: High-Speed Layout Guidelines [打印本页] 作者: Get123 时间: 2022-4-28 13:42 标题: High-Speed Layout Guidelines 本帖最后由 Heaven_1 于 2022-4-28 17:21 编辑 ) Z' _/ O5 X. X+ N4 k0 a3 Z3 L# \, I
高速信号设计Guidelines/ O+ ~. x5 C4 l! l
Theoretical Overview 3 B b: b& {) M9 JSome basic understanding is desirable to effectively use the PCB design rules given in this document. It is" c, t. c: |# ~- | ?
then easy to identify the undesirable effects that can arise and how to avoid them. The reason PCB layout0 `7 ]4 ?+ {; g5 S, ?, E* f! `
becomes more and more important is because of the trend to faster, higher integrated, smaller form. R, W0 W; j; `$ v8 h
factors, and lower power electronic circuits. The higher the switching frequencies are, the more radiation/ k' ]; [4 V; }& s, {; I5 ?0 b
occurs on a PCB. With good layout, many EMI problems can be minimized to meet the required 1 `! Z) P7 U0 T: y: [4 Lspecifications. ; L$ U3 ^0 t+ V1 V+ [1.1 B# s3 Y3 z; u0 t8 ?2 [Electromagnetic Interference and Electromagnetic Compatibility ) o! i* T) ]. U o1 `* WElectromagnetic interference (EMI) is radio frequency energy that interferes with the operation of an 4 Q- f9 l( _: A K0 s _0 i/ }2 ~electronic device. This radio frequency energy can be produced by the device itself or by other devices ( d* s7 |4 \: |8 }- b7 G' a; Mnearby.$ V8 T, U% f! h4 n
Electromagnetic compatibility (EMC) is the ability of an electronic product to operate without causing EMI ' F0 W! L4 Y( G- fthat would interfere with other equipment and without being affected by EMI from other equipment or the ' O" G3 ^: y! h; s2 m( Menvironment. [* b$ Y% d, _. v7 [ 4 g! ]8 y7 C' ?/ r5 g9 A0 z2 U* d2 P T
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( w6 F5 K7 f( w a! _% x 作者: somethingabc 时间: 2022-4-28 15:33
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