From: Mike Jenkins ([email protected])
Date: Thu Mar 08 2001 - 17:21:34 PST
Gary,
The topology you describe is electrically equivalent to the "Y".
o-----^^^---+---^^^-----o o-----+---^^^---+-----o
| /---\ | |
< \---/ < <
< < <
_|_ _|_ _|_
/// /// ///
You can find the conversion formulas in a circuits text under
"T-PI" or "wye-delta" transformations. Hope that helps.
Regards,
Mike Jenkins
"Steinkogler, Gary" wrote:
>
> I have Differential PECL running at 327Mhz. I have seen thevenin equivalent
> parallel, Y variance, diode terminations, but not much on three point
> termination - 120 ohm across differential pair and 280 ohm from each signal
> to ground. Anybody out there ever use the 3 point topology?
>
> Gary Steinkogler
> Optical Solutions
> 16305 36th Ave. North
> Suite 300
> Minneapolis, MN 55446-2698
> Phone: (763) 268-3633
> Fax: (763) 268-3301
> Main: (763) 268-3300
>
> email:[email protected]
>
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