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Proceedings Paper

A stochastic model of digital switching noise
Author(s): Giorgio Boselli; Gabriella Trucco; Valentino Liberali
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Paper Abstract

In fully CMOS digital integrated systems, switching activity of logic gates is the source of the so-called "digital noise". Together with interconnections parasitics, digital switching noise is known to cause "bouncing" effects, i.e. oscillations of on-chip supply and bias voltages, which can remarkably degrade overall system performance. Digital switching is a completely deterministic process, depending on both circuit parameters and input signals. However, the huge number of logic blocks in a digital integrated system makes digital switching a cognitively stochastic process. Therefore, logic transition activity can be analyzed using a stochastic approach. In this paper, we model the digital switching current as a stationary shot noise process, and we derive both its amplitude distribution and its power spectral density.

Paper Details

Date Published: 10 May 2007
PDF: 10 pages
Proc. SPIE 6590, VLSI Circuits and Systems III, 65901P (10 May 2007); doi: 10.1117/12.722082
Show Author Affiliations
Giorgio Boselli, Univ. of Milano (Italy)
Gabriella Trucco, Univ. of Milano (Italy)
Valentino Liberali, Univ. of Milano (Italy)

Published in SPIE Proceedings Vol. 6590:
VLSI Circuits and Systems III
Valentín de Armas Sosa; Kamran Eshraghian; Félix B. Tobajas, Editor(s)

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