Date: Thu Oct 22 2009 - 08:56:54 PDT
Hi all. I have some conceptual issue. The next graph represents gnd clamp of an input model of a memory with 120 ohm ODT This is model of a famous company which I download: I don't understand how it is possible that the current is zero fot V> -0.5V. The meaning of ODT is resistor that connected from the input to the gnd. So for this range (when V>-0.5V) I was expecting to see linear current with a slope that equal to the resistor. For example when I simulated gnd clamp of an input buffer with 50 ohm ODT I received the next plot: You can see that the plot is liner for V> -0.5V as expected. I looked in a lot of ibis file and I never saw common behavior. So I guess that maybe I am doing something wrong. I will be glad to hear your comments. Thanks a lot. Kobi. -- This message has been scanned for viruses and dangerous content by MailScanner, and is believed to be clean. -------------------------------------------------------------------- |For help or to subscribe/unsubscribe, e-mail majordomo@eda-stds.org |with the appropriate command message(s) in the body: | | help | subscribe ibis <optional e-mail address, if different> | subscribe ibis-users <optional e-mail address, if different> | unsubscribe ibis <optional e-mail address, if different> | unsubscribe ibis-users <optional e-mail address, if different> | |or e-mail a request to ibis-request@eda-stds.org. | |IBIS reflector archives exist under: | | http://www.eda-stds.org/pub/ibis/email_archive/ Recent | http://www.eda-stds.org/pub/ibis/users_archive/ Recent | http://www.eda-stds.org/pub/ibis/email/ E-mail since 1993
