[SI-LIST] R: Transmission line impedance
- From: <gianguida@xxxxxxxx>
- To: <cygnul@xxxxxxxxx>, <si-list@xxxxxxxxxxxxx>
- Date: Wed, 20 Dec 2006 10:02:41 +0100
Dear Sam,
obviously there is nothing special in 50 ohm or 60ohm or whatevere value
SI theory and practice are based upon Maxwell equation and its semplified form
Trasmission line equation
that simply works for any impedance value ....
Giancarlo
-----Messaggio originale-----
Da: si-list-bounce@xxxxxxxxxxxxx per conto di Sam Pete
Inviato: mer 20/12/2006 7.27
A: si-list@xxxxxxxxxxxxx
Oggetto: [SI-LIST] Transmission line impedance
Hi Friends,
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.
Regards,
Sam
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