Subject: [IBIS-Users] Waveform mismatch question
From: Angulo, John (john_angulo@mentorg.com)
Date: Thu Jan 23 2003 - 11:10:28 PST
The following is posted on behalf of John Phillippe at Motorola. Please send any private replies to john.phillippe@motorola.com only.
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Ibis Guru's,
I get quite a few waveform mismatches between the rising/falling
edges and the I/V curves like the one shown below.
WARNING - Model pad_26v_fast: The [Falling Waveform]
with [R_fixture]=50 Ohms and [V_fixture_max]=0V
has MAX column DC endpoints of 0.05V and 1.75v, but
an equivalent load applied to the model's I-V tables yields
different voltages ( 0.16V and 1.91V),
a difference of 6.66% and 8.94%, respectively.
I'm curious if this is a common problem, or if there are some simple
solutions to get everything to match up. I check the waveforms and set
the sim time long enough to make sure the waveforms are stable. Any
help/suggestions would be greatly appreciated.
-- John Phillippe SPS, 32 Bit Embedded Controller Division, IC Creation Motorola - 512-895-1835 Austin, TX - john.phillippe@motorola.com |------------------------------------------------------------------ |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 1993
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