Synthesizing optimal filters for crosstalk-cancellation for high-speed buses

Authors:
Jihong Ren;Mark Greenstreet
Affiliations:
University of British Columbia, Vancouver, BC;University of British Columbia, Vancouver, BC
Venue:
Proceedings of the 40th annual Design Automation Conference
Year:
2003

Citing 2
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Equalizing Filter Design for Crosstalk Cancellation

ISVLSI '03 Proceedings of the IEEE Computer Society Annual Symposium on VLSI (ISVLSI'03)

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Abstract

We present practical algorithms for the synthesis of crosstalk cancelling equalizing filters. We examine designs optimized for the traditional l2 metric and introduce an approach based on the l∞ metric. We compare the two approaches for realistic buses with tight wire spacings. We show bandwidth improvements of up to a factor of 2 using crosstalk cancellation when compared with no filtering or independent pre-emphasis for each wire. Using l∞ optimization, we achieve roughly 50% better performance than the l2 methods. We are aware of only one other published description of crosstalk cancellation for high-performance buses [9]. We believe that our work is the first to show the advantages of l∞ optimization and to consider crosstalk cancellation for more than just nearest neighbours for high-speed buses.