[SI-LIST] Often overlooked effect of ground breaks

  • From: Doug Smith <doug@xxxxxxxxxx>
  • To: SI-List <si-list@xxxxxxxxxxxxx>
  • Date: Sun, 08 Dec 2002 19:28:41 -0800

Hi All,

It's time for another short tech article....

Many of us in in the technical community know that crossing a path 
over a break in the ground/power planes on a board can have 
undesirable effects. One effect sometimes overlooked is excessive 
crosstalk that occurs between paths crossing the break. December's 
Technical Tidbit on my site at http://emcesd.com titled "Crossing 
Ground Plane Breaks, A Source of Crosstalk" presents measured data 
that shows the crosstalk, even that due to a short break in a ground 
plane, can be signficant.

There is lots of stuff in the middle, but if you page down to the 
bottom of the page you will see the link to the article in the form of 
a picture of a circuit board with a ground slit. There is also a 
listing of my upcoming seminars in January near the top of the page.

Doug
-- 
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     ___          _       Doug Smith
      \          / )      P.O. Box 1457
       =========          Los Gatos, CA 95031-1457
    _ / \     / \ _       TEL/FAX: 408-356-4186/358-3799
  /  /\  \ ] /  /\  \     Mobile:  408-858-4528
|  q-----( )  |  o  |    Email:   doug@xxxxxxxxxx
  \ _ /    ]    \ _ /     Website: http://www.dsmith.org
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