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 How to model the following twisted pair cable in PSPICE? Help ASAP 

Last post Wed, May 18 2011 8:15 AM by alokt. 1 replies.
Started by gatedne 11 Apr 2011 01:15 PM. Topic has 1 replies and 2567 views
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  • Mon, Apr 11 2011 1:15 PM

    • gatedne
    • Not Ranked
    • Joined on Mon, Apr 11 2011
    • Posts 2
    • Points 40
    How to model the following twisted pair cable in PSPICE? Help ASAP Reply

     Hi all,

    I have a twisted shielded differential signal pair carrying LVDS data. I have an adjacent twisted shielded power cable 28V on one line and rtn on the other. They are all in the same cable. I would like to model this for a transient response and see how a pulse on the power line effects the signal integrity on the adjacent LVDS twisted pair. I need to model the mutual L and C between all conductors ( 2 pwr and 2 signal) in the cable.

    I haven't done something like this using PSPICE before and so it would be very useful to hear from someone who has modelled something like this before. 

    thanks

     

    • Post Points: 20
  • Wed, May 18 2011 8:15 AM

    • alokt
    • Top 25 Contributor
    • Joined on Fri, Aug 22 2008
    • Noida, Uttar Pradesh
    • Posts 241
    • Points 3,470
    Re: How to model the following twisted pair cable in PSPICE? Help ASAP Reply
    One possible way to insert a series "L" in all four signal path and link them via one common coupling. You need to keep coupling coefficient to a low value to have loose coupling. I would connect "C" directly between two adjacent signals. 

     

    • Post Points: 5
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Started by gatedne at 11 Apr 2011 01:15 PM. Topic has 1 replies.