[SI-LIST] Re: Receiver End Signal
- From: "D. C. Sessions" <si-list@xxxxxxxxxxxxxxxx>
- To: si-list@xxxxxxxxxxxxx
- Date: 08 Jul 2002 22:22:30 -0700
On Mon, 2002-07-08 at 21:28, Kedar P. Apte wrote:
> Hi SI GURUs
>
> I am a new user of SI Tools so please coop up with me I am in a learning
> process
I really wouldn't advise learning the physics from the tools.
> so when I view any waveform for reflections in the tool I am getting sharper
> edge on the receiver point than on the driver point
> I am unable to understand this.
> can any one tell me is it correct or where the problem may be
> on that net the tracelength is exceeding the calculated one.
At the far end of the line, the incident wave and the reflection
superpose to give you twice the dv/dt as at the driver. In the
absence of any nonlinear devices this *should* produce a wave
with the same shape (risetime etc.) as at the source, just doubled.
If there are clamping devices you may actually see a shorter
rise/fall time since the higher dv/dt appears across a shorter
voltage range.
--
| The race is not always to the swift, nor the battle to the strong. |
| Because the slow, feeble old codgers like me cheat. |
+--------------- D. C. Sessions <dcs@xxxxxxxxxxxxxxxx> --------------+
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