Electrical Engineering
      and Computer Sciences

Electrical Engineering and Computer Sciences

COLLEGE OF ENGINEERING

UC Berkeley

Signal Delay in RC Trees with Charge Sharing or Leakage

Arvind Raghunathan and Clark D. Thompson

EECS Department
University of California, Berkeley
Technical Report No. UCB/CSD-85-243
June 1985

http://www.eecs.berkeley.edu/Pubs/TechRpts/1985/CSD-85-243.pdf

A single value for delay, based upon the delay of Elmore, is derived for two types of RC tree networks. In one type of network, there is no driving source: this undriven situation causes static charge sharing among nodes. An expression for delay is obtained by straightforward analysis of this network.

In our second case, an RC tree which is driven by at least one source has leaky capacitors. We show how to calculate delays for such trees by a linear time algorithm.

Simple MOS circuits undergoing charge sharing and with leakage paths to ground are analyzed using the methods presented in this paper. The results are compared with those of SPICE.


BibTeX citation:

@techreport{Raghunathan:CSD-85-243,
    Author = {Raghunathan, Arvind and Thompson, Clark D.},
    Title = {Signal Delay in RC Trees with Charge Sharing or Leakage},
    Institution = {EECS Department, University of California, Berkeley},
    Year = {1985},
    Month = {Jun},
    URL = {http://www.eecs.berkeley.edu/Pubs/TechRpts/1985/5511.html},
    Number = {UCB/CSD-85-243},
    Abstract = {A single value for delay, based upon the delay of Elmore, is derived for two types of RC tree networks. In one type of network, there is no driving source: this undriven situation causes static charge sharing among nodes. An expression for delay is obtained by straightforward analysis of this network.  <p>  In our second case, an RC tree which is driven by at least one source has leaky capacitors. We show how to calculate delays for such trees by a linear time algorithm.  <p>  Simple MOS circuits undergoing charge sharing and with leakage paths to ground are analyzed using the methods presented in this paper. The results are compared with those of SPICE.}
}

EndNote citation:

%0 Report
%A Raghunathan, Arvind
%A Thompson, Clark D.
%T Signal Delay in RC Trees with Charge Sharing or Leakage
%I EECS Department, University of California, Berkeley
%D 1985
%@ UCB/CSD-85-243
%U http://www.eecs.berkeley.edu/Pubs/TechRpts/1985/5511.html
%F Raghunathan:CSD-85-243