[SI-LIST] Re: Transmission line impedance
- From: msharpes@xxxxxxxxxx
- To: <cygnul@xxxxxxxxx>, <si-list@xxxxxxxxxxxxx>
- Date: Wed, 20 Dec 2006 08:41:44 -0700
Sam - Here's an article that's been referenced before to a similar
question:
http://www.sigcon.com/Pubs/edn/why50.htm=20
-----Original Message-----
From: si-list-bounce@xxxxxxxxxxxxx [mailto:si-list-bounce@xxxxxxxxxxxxx]
On Behalf Of Sam Pete
Sent: Tuesday, December 19, 2006 11:28 PM
To: si-list@xxxxxxxxxxxxx
Subject: [SI-LIST] Transmission line impedance=20
Hi Friends,
=20
Whenever we refer to SI books or application notes, the impedance of
the transmission line is mentioned as 50-ohms or 60-ohms. What is the
speciffic reason behind this value? why can't it be something different
than this? OR Why this 50-ohms conceptualized from the driver's
perspective? (evolution of transmission line theory for Digital Design)
Please flood me some info on this.
=20
Regards,
Sam
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=20
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