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NS 類比學院教材
7 g6 T* }, v! s p+ gAgenda
% S# {$ B' G6 _• Signal Integrity and Line Termination
3 ^6 J8 J7 _$ M; u, _1 G• Skin Effect5 C9 { V9 W" ?- C! n
• Proximity Effect* G0 o/ F5 n* ~; X3 A
• “Ground” Resistance6 q, q2 d1 M N. X- l4 ~1 y
• Radiation% k+ r9 c# J, S
• Noise in the “Ground” System/ y) `6 ]* w0 o, X% T- k8 h+ Z
• The Split Ground Plane Problem$ K7 M9 D, a3 G+ d8 Z- b, M2 T
• Improved Layout- h# a0 L0 U- u9 r5 i
• Summary of Rules" h/ o* \+ _+ X/ H
• Recommended Reading
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Signal Integrity Problem7 h p0 `4 ^# E z$ R! Y
• Signals propagate down a line
* r+ K$ ^& d1 c8 j9 q0 `• Improper termination causes reflections
4 Z" P4 v" a, G6 K9 J• Reflections
4 f5 u7 d% C/ a+ _& r( m% p+ e– Cause signal distortion8 ^5 X5 i P: R
– Cause signal radiation
3 p7 Z: V3 J( p, J• Distortion
8 g7 L8 v1 m' H. m" X1 t– Leads to a change in timing
2 V. g, i- x" o# A4 M. y– Can lead to timing uncertainty (jitter)
" S# ]6 x6 U! D5 ?$ y3 t, O7 X– Jitter causes ADC output noise
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[ 本帖最後由 sjhor 於 2007-5-8 12:13 AM 編輯 ] |
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