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		Xiaopeng JI,Long GE,Zhiquan WANG.[en_title][J].Control Theory and Technology,2009,7(1):92~.[Copy]

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XiaopengJI,LongGE,ZhiquanWANG
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Received:September 05, 2007Revised:March 10, 2008

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Analysis of on-chip distributed interconnects based on Pade expansion

Xiaopeng JI, Long GE, Zhiquan WANG

(College of Automation, Nanjing University of Science and Technology, Nanjing Jiangsu 210094, China)

Abstract:

In this paper, on-chip interconnects are modeled as distributed parameter RLCG transmission lines, based on which the matrix ABCD of interconnects is deduced. With help of the ABCD matrix, a voltage transfer function of an interconnect system, consisting of a driver, interconnect line and load, is obtained analytically in the form of a transcendental function, and it is reduced to a finite order system based on high order Pade approximation. With the reduced-order transfer function, response waveforms with step input can be obtained, and signal delay can be calculated consequently. Two numerical experiments are conducted to demonstrate its efficiency.

Key words: Distributed interconnects ABCD matrix Transfer function Pade expansion Response waveform Signal delay