[SI-LIST] : internal timestep too small in transient analysis

About this list Date view Thread view Subject view Author view

From: Jay Diepenbrock (jaydiep@us.ibm.com)
Date: Tue Mar 27 2001 - 05:41:33 PST


Ref: Post on same subject by Elias Lozano

Elias,

In addition to the good suggestions already posted, check the propagation
delay of your transmission line - no matter what you set the timestep to,
HSPICE will set the time step to half the length of the transmission line.
If the line's propagation delay is 200 ps (corresponding to one inch or so
of PCB trace), you get a step size of 100 ps, like it or not. In that
case, the solution may be to use a longer transmission line.

Jay Diepenbrock

Senior Engineer
Interconnect Technology & Qualification
IBM Global Procurement, B8UA/061, RTP, NC
Phone: 919-543-8804 Fax: 919-543-3642
Email: jaydiep@us.ibm.com

**** To unsubscribe from si-list or si-list-digest: send e-mail to
majordomo@silab.eng.sun.com. In the BODY of message put: UNSUBSCRIBE
si-list or UNSUBSCRIBE si-list-digest, for more help, put HELP.
si-list archives are accessible at http://www.qsl.net/wb6tpu
****


About this list Date view Thread view Subject view Author view

This archive was generated by hypermail 2b29 : Thu Jun 21 2001 - 10:11:20 PDT