Subject: [IBIS-Users] Diff Pin Question
From: Lauzums, Andris (ALAUZUMS@intersil.com)
Date: Thu Jun 26 2003 - 10:48:43 PDT
Hello-
I had a question about the [Diff_Pin] parameter in the IBIS specification. In reference to t_delay, (min, typ, and max), where my non-inverting ouput is output A, and my inverting output is B, I am unclear about the following:
Does a positive (as opposed to negative) value in the t_delay column mean that A occurs after B, or that B occurs after A? I have read the IBIS specification for this parameter, and it states that "(t-delay contains) launch delays of the non-inverting pins relative to the inverting pins. The values can be of either polarity". It does not seem to specify which way is positive, and which way is negative. This is the source of my confusion.
Thank you for the help-
Andris Lauzums
Intersil Corporation
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