RE: [IBIS-Users] IV Curves

Lee-

Consider Randy's case 1, except switching from Vcc to 0V:
The reflected voltage (Vr) would be forward voltage (Vf)*RC = -Vcc*1 = -Vcc
The load voltage (Vload) is Vf+Vr = -Vcc+(0) = -Vcc

You might consider checking out some of the excellent transmission line
textbooks. The books by Dr. Johnson and by Eric Bogatin are also good.

- Lynne

-----Original Message-----
From: owner-ibis-users@eda.org [mailto:owner-ibis-users@eda.org] On Behalf
Of lee yang
Sent: Wednesday, January 12, 2005 4:02 PM
To: rrwolff@micron.com
Cc: ibis-users@eda.org
Subject: RE: [IBIS-Users] IV Curves

Hi Randy Wolff,
Thanks a lot for your detail and useful explaination, i appreciate it very
much. Now, i have a much better idea about the reflection.
I have a further question:
In case 3 below, although the reflected voltage is -vcc, the total voltage
in driver site is 0V. Do you have any example that shows the voltage at
driver site is at -vcc? (which is cover by IBIS voltage range.)
Many thanks.

Appreciated,
Lee

>

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Received on Wed Jan 12 21:31:09 2005