[SI-LIST] Re: Crosstalk in time units
- From: "Hassan O. Ali" <hassan@xxxxxxxx>
- To: "Lynne D. Green" <lgreen22@xxxxxxxxxxxxxx>, <joshmachine_india@xxxxxxxxx>, <si-list@xxxxxxxxxxxxx>
- Date: Wed, 3 Aug 2005 18:03:42 -0400
A quick-and-dirty voltage-to-time crosstalk conversion technique is as follows:
Crosstalk (in time) = Crosstalk Voltage peak-to-peak/Signal Slew-rate
Assumptions:
- crosstalk doesn't change the slew-rate of the signal - just advances or
delays the
signal
- crosstalk happens during the rising/falling edge of the signal (not after
settling)
Best regards.
Hassan.
On Aug 3 , "Lynne D. Green" <lgreen22@xxxxxxxxxxxxxx> wrote:
>
> Hello, Vighneshrudra Das,
>
> This is done by performing the following simulations:
> * The no-crosstalk delay, with the victim net switching and no aggressors
> switching.
> * Experiment with which aggressors are switching high and which are
> switching low to get the worst-case conditions due to crosstalk, for both
> rising and falling victim net cases.
> * Finally, simulate with both the aggressor and victim nets switching.
> Measure the time to Vih for both MAX and MIN corners. This will give the
> worst case change in delay for rising crosstalk.
> * Repeat for Vil for worst case delay in falling crosstalk.
>
> Best regards,
> Lynne
>
>
> "IBIS training when you need it, where you need it."
>
> Dr. Lynne Green
> Green Streak Programs
> <a
> href='http://www.greenstreakprograms.com'>http://www.greenstreakprograms.com</a>
> 425-788-0412
> lgreen22@xxxxxxxxxxxxxx
>
> -----Original Message-----
> From: si-list-bounce@xxxxxxxxxxxxx [mailto:si-list-bounce@xxxxxxxxxxxxx] On
> Behalf Of vighneshrudra das
> Sent: Wednesday, August 03, 2005 11:48 AM
> To: si-list@xxxxxxxxxxxxx
> Subject: [SI-LIST] Crosstalk in time units
>
> hi Gurus...
> i am stuck in a analysis of a board because the anlysis requires
> crosstalk in time units that is nanaosecs.
> can anyone please help me out....or share the conversion mechanism
> it is urgent.
>
>
>
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