90' turn in pcb trace? is it harmfull

Discussion in 'General Electronics Chat' started by umashankar.s, Jul 2, 2008.

  1. umashankar.s

    Thread Starter New Member

    Jul 1, 2008
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    :confused:Why 90 degree turn traces produce cross talk or noise in pcb?
     
  2. jpanhalt

    AAC Fanatic!

    Jan 18, 2008
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    David L. Jones states in PCB Design Tutorial:

    http://alternatezone.com/electronics/files/PCBDesignTutorialRevA.pdf

    John
     
  3. umashankar.s

    Thread Starter New Member

    Jul 1, 2008
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    thanks

    Do you have any simulations result for this 90 deg bend track in pcbs
    so that we can just show this wont produce EMI
     
  4. jpanhalt

    AAC Fanatic!

    Jan 18, 2008
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    I did a quick search and didn't find anything. This note from TI doesn't mention bends either: http://focus.ti.com/lit/an/szza009/szza009.pdf

    One would suppose that if the angle of bend for traces was a significant contributor to EMI, the TI document would have mentioned it.

    John
     
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