[SI-LIST] Re: Buffer delay
- From: raj singh <forsilist@xxxxxxxxx>
- To: yang@xxxxxxxxxx, si-list@xxxxxxxxxxxxx
- Date: Fri, 17 Nov 2006 01:33:37 -0800 (PST)
Hspice delays should be accurate and in general more than ibis. Better to use
ibis only for SI sims and not for timing.
regards
Raj
yan hang <yang@xxxxxxxxxx> wrote:
Hi All,
Now I do some board timing simulations . I got the hspice =
model
and ibis model for same buffer. Then I set a test fixture(Ex.
Cref=3D15pf,Rref=3D1E6,Vref=3D3.3V),I contrast the simulation result of =
buffer
dealy using hspice model and ibis model. I found there is a little big
diffrence between them.
So when translate hspice model to ibis model,how to consider
about the buffer deley issue? =20
Should I trust the buffer delay value from ibis model =
simulation?
Best Regards.
Yan Hang
Huawei Technology
086-21=A3=AD68644808=A3=AD24043
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