Understanding Common-Mode Noise on Wide Data-Buses

This paper discusses the effects of the frequency-dependent losses in the reference return path for wide, on-chip data buses, that must be understood in order to accurately predict the interaction and summation of crosstalk and common-mode noise signals. This interaction can generate excessive noise for on-chip global interconnections. Measured and simulated results are shown for representative 8-12 line couplings and circuit-synthesis techniques are shown to capture the correct R(f)L(f)C behavior of the reference series impedance.

By: Alina Deutsch, Howard Smith, Gerard V. Kopcsay, Byron Krauter, Christopher W. Surovic, David Widiger

Published in: RC22657 in 2002

LIMITED DISTRIBUTION NOTICE:

This Research Report is available. This report has been submitted for publication outside of IBM and will probably be copyrighted if accepted for publication. It has been issued as a Research Report for early dissemination of its contents. In view of the transfer of copyright to the outside publisher, its distribution outside of IBM prior to publication should be limited to peer communications and specific requests. After outside publication, requests should be filled only by reprints or legally obtained copies of the article (e.g., payment of royalties). I have read and understand this notice and am a member of the scientific community outside or inside of IBM seeking a single copy only.

RC22657.pdf

Questions about this service can be mailed to reports@us.ibm.com .