Subject: Re: [IBIS-Users] Ramp Rate
From: Syed Huq (shuq@cisco.com)
Date: Thu Dec 26 2002 - 11:02:08 PST
Have you done this test using SPICE only(bypassing s2ibis2) and measure
the Ramp(Ouput) on SPICE ?
Also, what was the input Tr/Tf for the second case ?
Syed
>Date: Thu, 26 Dec 2002 17:57:03 +0530
>From: Anshuli Goel <anshuli@india.ti.com>
>X-Accept-Language: en
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>To: "ibis-users@eda.org" <ibis-users@eda.org>
>Subject: [IBIS-Users] Ramp Rate
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>
>Hello IBIS Gurus
>
>I am trying to generate the IBIS model of a Bi-di buffer in only output
>direction. In first case in s2ibis2 script I give 1ns as rise and fall
>time and in the output IBIs file I get some ramp rate,
> in second case I change the rise and fall time in s2ibis2 script
>but in the output IBIS file the ramp rate is not changed as compared to
>first case.
>( While I expected it to change since output rise and fall time depends
>on input slew and output load , in this case only input slew is changing
>) .
>
>Why this is happening ?
>Is there some other parameters also that I need to change ?
>
>Regards
>Anshuli
>
>
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