[SI-LIST] Re: 50 Ohm Via?
- From: "Joseph Kao" <josephk@xxxxxxxxxxx>
- To: <joel@xxxxxxxxxx>, "SI LIST" <si-list@xxxxxxxxxxxxx>
- Date: Thu, 10 Jan 2008 10:05:48 +0800
Hello...Joel,
3D field solver is good, and 1~5Gbps had better condiser the Via effect,
detail should see your topology configuration.
BR,
Joseph =20
-----Original Message-----
From: si-list-bounce@xxxxxxxxxxxxx [mailto:si-list-bounce@xxxxxxxxxxxxx]
On Behalf Of Joel Brown
Sent: Thursday, January 10, 2008 9:52 AM
To: 'SI LIST'
Subject: [SI-LIST] 50 Ohm Via?
Is there such a thing as a design methodology for designing a PCB via
with 50 ohm impedance, or does it have to be done iteratively using a 3D
field solver?
Are controlled impedance vias necessary, worthwhile or helpful for
multi-gigabit serial links running at 1 to 5 Gbps?
=20
Thanks - Joel
=20
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=20
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