Influence and mitigation of long differential via stub on signal integrity

Influence and mitigation of long differential via stub on signal integrity

How the long differential via stub influences the time-domain response and the eye diagram of the signal trace in a thick multilayer printed circuit board is investigated. Then, it is proved that RL termination has the same efficiency as R and RC terminations on improving signal integrity and the ey...

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Veröffentlicht in:Electronics letters 2015-06, Vol.51 (13), p.975-977
Hauptverfasser: Wang, Jun, Lu, Jian-Min, Chu, Xiu-Qin, Liu, Yang, Lai, Xin-Quan, Li, Yu-Shan
Format: Artikel
Sprache:eng
Schlagworte:
Boards
Circuits and systems
eye diagram
Eyes
Gain
long differential via stub
Multilayers
PCB
Printed circuits
RC circuits
RC terminations
Receiving
Reflection
reflection gain
RL termination
Signal integrity
signal trace
thick multilayer printed circuit board
time‐domain analysis
time‐domain response
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Beschreibung
Zusammenfassung:How the long differential via stub influences the time-domain response and the eye diagram of the signal trace in a thick multilayer printed circuit board is investigated. Then, it is proved that RL termination has the same efficiency as R and RC terminations on improving signal integrity and the eye diagram. Finally, a method is proposed to mitigate the influence of the via stub by combining mismatched R termination and reflection gain at the receiving end.
ISSN:0013-5194
1350-911X
1350-911X
DOI:10.1049/el.2015.0823