[SI-LIST] Re: Measuring Crosstalk
- From: Jack Stone <mediwheel_js@xxxxxxxxx>
- To: aaron.helleman@xxxxxxxxxxx,"si-list@xxxxxxxxxxxxx" <si-list@xxxxxxxxxxxxx>
- Date: Thu, 17 Apr 2003 09:42:55 -0700 (PDT)
Aaron, I suspect (please note I'm not quite sure), but if you were to
isolatewhich would be the victim vs. the agressor. Stimulate the agressor
either with the signals know or thru a signal generator; then use a
differential probe between the victim and agressor to determine the DV
experienced.Then reverse the experiment as a validation. Secondly you could
perform the same experiment on other routes whereby the airgap is greater to
accertain the reduction of coupling. Other aspects is the planes adjacent to,
or in proximity as well which could be measured to determine/validate the path
of coupling. jm10c's jack ~
Aaron Helleman <aaron.helleman@xxxxxxxxxxx> wrote:
What's the standard way to measure crosstalk in the lab? We have
experimentally determined that there is crosstalk on our PCB due
to traces being too close together for an xDSL system on the analog
side. We want to characterize the amount of crosstalk between two
'bad' ports vs. two 'good' ports
to determine if our respin will work properly in simulation.
The frequency band of interest is between DC and 1100 KHz, which seems
like it should not be succeptable to crosstalk very much, but we have
experimentally determined
that if we re-route the tracks of interest using rework wire we can make
the crosstalk go away.
Would a spectrum analyzer and a signal generator be the way to go, or
perhaps a network analyzer to check the rejection ratio?
Could we do this via simulation as well?
--
Aaron
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