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Energy-Aware Signal Integrity Analysis for High-Speed PCB Links
This paper proposes a novel approach to evaluate design alternatives for high-speed links on printed circuit boards. The approach combines evaluations of signal integrity and link input power. For a comprehensive analysis, different link designs are made comparable through the application of identic...
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Published in: | IEEE transactions on electromagnetic compatibility 2015-10, Vol.57 (5), p.1226-1234 |
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Main Authors: | , , , , , |
Format: | Article |
Language: | English |
Subjects: | |
Citations: | Items that this one cites Items that cite this one |
Online Access: | Get full text |
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Summary: | This paper proposes a novel approach to evaluate design alternatives for high-speed links on printed circuit boards. The approach combines evaluations of signal integrity and link input power. For a comprehensive analysis, different link designs are made comparable through the application of identical constraints, with the link input power as the single figure of merit for a systematic, quantitative comparison of design alternatives. The analysis relies upon a combination of efficient physics-based via and trace models, statistical time-domain simulation, and an analytical input power evaluation, which allows it to handle links consisting of a large number of channels while fully taking into account interchannel crosstalk. The proposed approach is applied to study two fundamental design decisions at the PCB level-single-ended versus differential signaling and signal-to-ground via ratios of 1:1 versus 2:1-for a link consisting of 2048 vias and up to 175 striplines with an aggregate data rate of 1 Tb/s. It is found that both design decisions have a considerable impact on the required input power of the link. |
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ISSN: | 0018-9375 1558-187X |
DOI: | 10.1109/TEMC.2015.2427362 |