Lynne The Terminator model is much better, you can have the powerclamp and groundclamp tables contain the ESD characteristics and you don't need to worry about the Vinh/Vinl issues. Terminators include C_comp also. Also, Input models do not have Pullup and Pulldown tables. I'm sure you meant powerclamp and groundclamp. Tom Dagostino Teraspeed(R) Labs 13610 SW Harness Lane Beaverton, OR 97008 503-430-1065 503-430-1285 FAX tom@teraspeed.com www.teraspeed.com Teraspeed Consulting Group LLC 121 North River Drive Narragansett, RI 02882 401-284-1827 From: owner-ibis@server.eda.org [mailto:owner-ibis@server.eda.org] On Behalf Of Lynne D. Green Sent: Wednesday, May 21, 2008 11:14 AM To: 'Muranyi, Arpad'; ibis@server.eda.org; ibis-users@server.eda.org Subject: RE: [IBIS-Users] RE: [IBIS] IBIS for pad with ESD Clamps Another option would be using the Input model type, with the ESD characteristics in the [Pullup] and [Pulldown] tables. Of course, one would include the pad capacitance, rail voltages, etc using the usual keywords. The Vinh and Vinl values could be set to Vcc/2 to keep the parser happy. The Input model type works for this because IBIS models only the current at the pad, and not the internal circuitry of the receiver. Lynne "IBIS training when you need it, where you need it." Next public IBIS seminar is Oct 9-10 in Fremont, CA. Dr. Lynne Green Green Streak Programs http://www.greenstreakprograms.com 425-788-0412 lgreen22@mindspring.com _____ From: owner-ibis-users@eda.org [mailto:owner-ibis-users@eda.org] On Behalf Of Muranyi, Arpad Sent: Wednesday, May 21, 2008 10:44 AM To: ibis@eda.org; ibis-users@eda.org Subject: [IBIS-Users] RE: [IBIS] IBIS for pad with ESD Clamps You could consider using the "Terminator" model type. Arpad ============================= _____ From: owner-ibis@server.eda.org [mailto:owner-ibis@server.eda.org] On Behalf Of Ajay Kapoor Sent: Wednesday, May 21, 2008 12:48 AM To: ibis@server.eda.org; ibis-users@server.eda.org Subject: [IBIS] IBIS for pad with ESD Clamps Dear Experts, I have a question regarding IBIS models. We have an IP that is just a short with only ESD diodes connected between supply rails. There is no input or output section in this IP. Would it be possible to generate IBIS models for such an IP ? If yes how should it be done ? Thanks Ajay -- This message has been scanned for viruses and dangerous content by <http://www.mailscanner.info/> MailScanner, and is believed to be clean. -- This message has been scanned for viruses and dangerous content by <http://www.mailscanner.info/> MailScanner, and is believed to be clean. -- This message has been scanned for viruses and dangerous content by <http://www.mailscanner.info/> MailScanner, and is believed to be clean. -- 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 1993Received on Wed May 21 12:23:00 2008
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