stupid 发表于 2010-8-9 17:36 9 ?& ^. c2 Z7 _' s
1. Design all interconnects as controlled impedance and terminate when necessary8 P D/ [2 s1 j( W2 _! B( I1 Q& ]
2. Space out signa ...
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7. Use loosely coupled differential pairs, with symmetrical lines s, V& J5 w& q9 O$ m! o, o: B) h5 u
loosely coupled 是怎么理解?