From: Larry Miller ([email protected])
Date: Tue Jun 13 2000 - 07:13:34 PDT
If you were talking about stripline (traces between two planes I get the
same rough answer as the man from 3Com.
Sorry if I caused any confusion. I thought you were talking microstrip
(traces on on surface layer).
The calculator is still a good deal, though!
Larry Miller
> -----Original Message-----
> From: Sean Murray [SMTP:[email protected]]
> Sent: Monday, June 12, 2000 1:35 PM
> To: '[email protected]'
> Subject: [SI-LIST] : DIFF PAIRS
>
> Anyone have any thought on what to use for the following numbers.
>
> Material: CE
> Impedance: ZO of the differential trace is 50Ohm and ZOD of each
> differential pair traces is 100Ohm.
>
> I built a board using 8 mill traces with a 8 gap between the pair, and
> .008 gap between plane to sig and then plane.
>
> Numbers were not what I expected, fabhouse used Polar+fudge factor to
> give me the numbers.
>
>
>
> Regards,
> Sean Murray
> General Manager
>
> M&M Specialties Inc.
> 1236 W. Southern Ave. #106
> Tempe, AZ. 85282-4518
> Phone: (480) 858-0393 x105
> Cell: (602) 684-7859
> Fax: (480) 858-1882
> Email: [email protected]
> WWW.mmspec.com
>
>
>
> **** To unsubscribe from si-list or si-list-digest: send e-mail to
> [email protected]. In the BODY of message put: UNSUBSCRIBE
> si-list or UNSUBSCRIBE si-list-digest, for more help, put HELP.
> si-list archives are accessible at http://www.qsl.net/wb6tpu
> ****
>
**** To unsubscribe from si-list or si-list-digest: send e-mail to
[email protected]. In the BODY of message put: UNSUBSCRIBE
si-list or UNSUBSCRIBE si-list-digest, for more help, put HELP.
si-list archives are accessible at http://www.qsl.net/wb6tpu
****
This archive was generated by hypermail 2b29 : Wed Nov 22 2000 - 10:50:35 PST