[SI-LIST] Lumped vs. Distrbuted systems.
- From: Michael Frandsen <MF@xxxxxxxxxxx>
- To: "'si-list@xxxxxxxxxxxxx'" <si-list@xxxxxxxxxxxxx>
- Date: Wed, 15 Jan 2003 10:28:17 +0100
Hi,
I have the book"A handbook of black magic" and found that si problems are
mostly related to distributed systems (if I understood it correctly).
I have tried multiple simulators and am now wondering if there are never
signal problems on wires short enough to maintain the status of being a
lumped network.
Eg. If I have a driver (SSTL) and an unterminated transmission line of one
inch and a receiver (SSTL). I will have some reflections.
Will I have this for 0.1 inch transmission line as well, or will that signal
be perfect?
The reason I am asking is that I have seen two simulators that say
differently. One has reflections and the other has not.
Can the parasitic information used be the result or does one simulator
simulate wrong?
I do have an opinion in this, but I will keep it to myself in order not to
have my opinion commented. It is my question that would probably confirm my
findings. Also I do not wish to give simulator names here, since I do not
want tofavor one over the other, if I have misunderstood anything.
Thanks,
Michael
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