[SI-LIST] Hspice differential Tline

  • From: timoceous <timoceous@xxxxxxxxx>
  • To: si <si-list@xxxxxxxxxxxxx>
  • Date: Tue, 14 Oct 2003 17:32:28 -0700 (PDT)

Hi Guru,

   I would like to know if there is a way to 
connect the hspice "T" element (ideal) to model
differential transmission line.  For instance, model
a pair of LVDS Tline.  I have tried but got lots
of reflection/ringing at the output.  Here is what
I have tried:

T1 Doutp GND VOP GND Z0=100.0 TD=500E-12 +IC=0.0 0.0
0.0 0.0 
T2 Doutn GND VON GND Z0=100.0 TD=500E-12 +IC=0.0 0.0
0.0 0.0

Rpa VOP VON 100

Note: Doutp/n are the LVDS driver output.

Thanks in advance,

Tim

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