Doran The package parasitics are associated with the component, not the input buffers. In this case the input buffers will receive their signals through the package model. One comment on the model. Your max ground clamp looks out of place. The min and typ have good diode characteristics but the max does not have a knee in the curve. Tom Dagostino Teraspeed Labs 13610 SW Harness Lane Beaverton, OR 97008 503-430-1065 http://www.teraspeed.com tom@teraspeed.com Teraspeed Consulting Group LLC 121 North River Drive Narragansett, RI 02882 401-284-1827 Teraspeed is the registered service mark of Teraspeed Consulting Group LLC -----Original Message----- From: owner-ibis-users@eda.org [mailto:owner-ibis-users@eda.org]On Behalf Of CW - Doran David Sent: Thursday, May 12, 2005 11:09 AM To: ibis-users@eda.org Subject: [IBIS-Users] question on including package models in IBIS file Below is a model for IVDS receiver containing a package model which I'm not sure makes sense to include. In general, we have not included package in the ibis models because packages differ from project to project. If I include the package model in IBIS, I worry that it makes the model specific to one design. However, it seems that the package model is only under the component section and is only for that component, not for the LVDS models "LV16TR1P" and "LV16TR1N". So perhaps it's OK to keep the package model inside this LVDS buffer since it's really associated with a component "DDP3" rather than my LVDS models. Please let me know ant comments or suggestions how this is generally handled - whether or not to include package model in all IBIS models. Thanks! |------------------------------------------------------------------ |For help or to subscribe/unsubscribe, email majordomo@eda.org |with just 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 email a written request to ibis-request@eda.org. | |IBIS reflector archives exist under: | | http://www.eda.org/pub/ibis/email_archive/ Recent | http://www.eda.org/pub/ibis/users_archive/ Recent | http://www.eda.org/pub/ibis/email/ E-mail since 1993Received on Thu May 12 11:35:35 2005
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