[SI-LIST] Cross-talk, which one is bigger?

  • From: "Zhenhua Fan" <zhenhua@xxxxxxxxxxxxxxxxxx>
  • To: si-list@xxxxxxxxxxxxx
  • Date: Thu, 16 May 2002 15:42:20 -0400

Hi all,

I have a stackup list this,

        ----------------     Primary side
           ----------        Gnd
        ---------------      Signal 1
        ---------------      Signal 2
           --------              Power
        --------------       Signal 3   data bus, 5mil trace, edge-to-edge
space is 7mil
        --------------       Signal 4   address bus, 5mil trace,
edge-to-edge space is 7mil. Space between signal 3 and 4 is 10mil
           --------              Power
        --------------       Signal 5
            --------------       Signal 6
           --------              Gnd
        --------------       Secondary side
There is a data bus group on signal 3 and a address bus on signal 4, and
unfortunately they're in parallel (not in 90 degree due to room restrict).
Here comes my two question:
 1) How to calculate the cross-talk caused from address to the data bus? 
 2) Comparing the cross-talk from address bus and the adjacent data bus,
which one is bigger? 

Thanks in advance,

Zhenhua Fan






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