RE: [SI-LIST] : Physcially-small far-end LVDS terminations?

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From: Chris Cheng (hycheng@3pardata.com)
Date: Mon Dec 20 1999 - 19:15:52 PST


try artech house linpar 2.0 ~$300. herrington and gang pioneered
boundary element method.
chris

-----Original Message-----
From: owner-si-list@silab.eng.sun.com
[mailto:owner-si-list@silab.eng.sun.com]On Behalf Of sweir
Sent: Monday, December 20, 1999 5:04 PM
To: si-list@silab.eng.sun.com
Subject: Re: [SI-LIST] : Physcially-small far-end LVDS terminations?

Dan,

Polar Instruments markets one for about $825.

Regards,

Steve.
At 03:15 PM 12/16/99 -0800, you wrote:
>Milt,
>
>Do you know by any chance where may I find a differential impedance
>calculator?
>Thank you.
>
>Dan Bostan
>Engineer
>Corvia Networks e-mail: dan@corvia.com
>212 Gibraltar Dr. ph: 408.752.0550/x111
>Sunnyvale, CA 94089 fax: 408.752.0551
>
>
>
>----- Original Message -----
>From: Milt Schwartz x3261 <schwartz@galaxy.nsc.com>
>To: <si-list@silab.eng.sun.com>
>Sent: Wednesday, December 15, 1999 3:06 PM
>Subject: Re: [SI-LIST] : Physcially-small far-end LVDS terminations?
>
>
> > Eric,
> > You only need one resistor (typ 100 ohms) between the differential
driver
>Pair.
> > The resistor should be equal to the differential impedance of the driver
>traces.
> > The LVDS Driver can be used with resistor values from 90 to 120 ohms and
>provide the specified VOC.
> > The manufacturers use split resistors so the VOS specification in
TIA/EIA
>644 can be monitored.
> >
> > regards milt
> >
> > Milt Schwartz
> > National Semiconductor
> > Interface Applications.
> >
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