[SI-LIST] Re: NEXT and FEXT: Question on relative levels
- From: <Cortex.Chen@xxxxxxxxxxxx>
- To: <Charles.Grasso@xxxxxxxxxxxx>
- Date: Wed, 30 Nov 2005 09:13:08 +0800
How far is the parallel/coupled length?
Regards,
Cortex=20
-----Original Message-----
From: si-list-bounce@xxxxxxxxxxxxx [mailto:si-list-bounce@xxxxxxxxxxxxx] =
On Behalf Of Grasso, Charles
Sent: Wednesday, November 30, 2005 4:06 AM
To: si-list@xxxxxxxxxxxxx
Subject: [SI-LIST] NEXT and FEXT: Question on relative levels
Is it possible to have NEXT greater than FEXT.??
=20
For example: For a two trace microstrip system my simulator reports 10%
NEXT (so for a 2.5V signal that translates to 250mV).
Based on the reported mutuals and self numbers and using the formula in
Eric's book I estimate 60mV for FEXT.
=20
Is this reasonable?
=20
Best Regards
Charles Grasso
Senior Compliance Engineer
Echostar Communications Corp.
Tel: 303-706-5467
Fax: 303-799-6222
Cell: 303-204-2974
Pager/Short Message: 3032042974@xxxxxxxx
Email: charles.grasso@xxxxxxxxxxxx;
Email Alternate: chasgrasso@xxxxxxxx
=20
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=20
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