[SI-LIST] LVDS

  • From: timoceous <timoceous@xxxxxxxxx>
  • To: si <si-list@xxxxxxxxxxxxx>
  • Date: Wed, 20 Aug 2003 15:25:10 -0700 (PDT)

Hi Guru,

   I am working on LVDS signals.  And are wondering if
the following configuration is correct or not:

LVDS Output(+) -----o********o------ LVDS input(+)
                                ()
LVDS Output(-) -----o********o------ LVDS input(-)

 o      = SMA connector.
 ****** = cable which is 50 Ohm.
 ()     = 100 Ohm.

   The LVDS is terminated with 100 Ohm differential.
I am wondering does the cable ground shield matter at
all?  Since the termination is differential should we
float the ground of SMA connector and cable, or it
didn't matter at all?

Regards,

Timo



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