Circuit noise evaluation by Padé approximation based model-reduction techniques

Authors:
Peter Feldmann;Roland W. Freund
Affiliations:
Bell Laboratories, Murray Hill, NJ;Bell Laboratories, Murray Hill, NJ
Venue:
ICCAD '97 Proceedings of the 1997 IEEE/ACM international conference on Computer-aided design
Year:
1997

Citing 3
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Abstract

This paper introduces a new circuit noise analysis and modeling method. The noise analysis method computes an analytic expression of frequency, in rational form, which represents the Pad\'e approximation of the noise power spectral density. The approximation can be carried out efficiently, to the required accuracy, using a variant of the PVL~\cite{FelF95} or MPVL~\cite{FelF95b} algorithms. The new method is significantly more efficient than traditional methods for noise computation at numerous frequency points. In addition, it allows for a compact and cascadable modeling of noise that can be used in system level simulations.