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[SI-LIST] Re: Maximum length of 1000basetT diff pair traces from PHYs to magnet ics

  • From: Murphy Jack-MGI2488 <jackmurphy@xxxxxxxxxxxx>
  • To: "'aleks@xxxxxxxxxxxxxxxxxxx'" <aleks@xxxxxxxxxxxxxxxxxxx>, si-list@xxxxxxxxxxxxx
  • Date: Fri, 6 May 2005 08:36:27 -0400
I'm unsure of the actual distance but you want to keep your magnetics as close 
to the RJ45s as possible otherwise you may get unwanted noise on the lines 
after the magnetics have done their filtering.

-----Original Message-----
From: si-list-bounce@xxxxxxxxxxxxx [mailto:si-list-bounce@xxxxxxxxxxxxx] On 
Behalf Of Aleksandr Oysgelt
Sent: Thursday, May 05, 2005 12:04 PM
To: si-list@xxxxxxxxxxxxx
Subject: [SI-LIST] Maximum length of 1000basetT diff pair traces from PHYs to 
magnet ics


Is there a guideline (or a process of determining) maximum length of 1000baseT 
diff pair traces between PHY and magnetics?

I want to know how far back from RJ45 connector (with integrated magnetics) I 
can put my PHYs.

Thank you
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