Re: [SI-LIST] : Schottky diode termination

Dennis Tomlinson (det@tellabs.com)
Mon, 26 Oct 1998 14:26:18 -0600

John Philips wrote:
>
> Dear all
>
> Does anybody have experience of in using schottky diode terminations in
> transmission line applications.
>
> john
>
> ----------------------------------------------------------------------------
> --------------
> WhiteCross Systems Limited Tel +44 1344 300770
> 3A Waterside Park Fax +44 1344 301424
> Cookham Road
> Bracknell
> Berks
> RG12 1RB
> ----------------------------------------------------------------------------
> --------------

Hi John,

I've made some use schottky terminations. I consider them
crude, but, in some cases, effective. The load reflection
coefficient will change from approximately +1 while the termination
diode is off, to approximately -1 when on. This can cause other
problems which have to be dealt with.

California Micro Devices is a manufacturer of schottky
terminators. They have an application note on this topic.
You can find links to their products, app. notes, and other
references by searching for: "Schottky diode termination"
on Excite, http://www.excite.com/

(See also "Termination Techniques for High Speed Buses" -
published in EDN magazine, February 16, 1998).

Cheers,

Dennis

**** To unsubscribe from si-list: send e-mail to majordomo@silab.eng.sun.com. In the BODY of message put: UNSUBSCRIBE si-list, for more help, put HELP. si-list archives are accessible at http://www.qsl.net/wb6tpu/si-list ****