[SI-LIST] doubt in lossless transmission line funda
- From: Canes Venatici <starsilic@xxxxxxxxx>
- To: si-list@xxxxxxxxxxxxx
- Date: Wed, 17 Sep 2008 18:23:54 +0530 (IST)
Hi all,
I was driving a lossless transmission line with a near-end rise time of 'tr'
(10-90% of Vdd) with an amplitude of Vdd .
The far-end was loaded with capacitance load. While evaluating the far-end
transition times the expected rise time (10-90% of Vdd)
is sq.rt(square(tr) + square(2.2*Z0*Cload)). Spice simulation results are not
correlating with the formula.
Is there an error in my formula??? Please help!
Regards,
Canes
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