Reduction of Network Models of Parasitic Coupling Effects in Mixed-Signal VLSI Circuits

Konferenz: ISTET 2009 - VXV International Symposium on Theoretical Engineering
22.06.2009 - 24.06.2009 in Lübeck, Germany

Tagungsband: ISTET 2009

Seiten: 5Sprache: EnglischTyp: PDF

Persönliche VDE-Mitglieder erhalten auf diesen Artikel 10% Rabatt

Ludwig, Stefan; Mathis, Wolfgang (University of Hannover)

In this paper a method for the efficient reduction network models of parasitic couplings in modern integrated circuits is presented. The focus lies on the disturbance of the analog part generated by the digital switching currents. The parasitic effects are modeled by large RLC networks and current sources for the digital switching currents. Based on the determined behavior of the digital modules an efficient description of these networks is proposed, which allows for a higher model reduction than standard methods. The proposed method enables a fast and efficient simulation of the parasitic effects. Additionally an extension of the reduction method to elements, which incorporate some supply voltage dependence to model the internal currents more precisely than independent current sources, is presented.