FreeLists / si-list / [SI-LIST] Re: inductance of differential stripline

[Istvan Novak <istvan.novak@xxxxxxx>]

Mark,

Welome to the si-list forum.

In a very simplistic way we can say that the differential impedance
is twice the single-ended impedance because we connect two
 transmission lines in series.  Series impedances add, similarly
series-connected inductances add.  You can use the same
formula of Zo*delay, just have to substitute the correct terms: 
differential impedance and differential (odd-mode) delay.  
You can find very good tutorials on the subject on the TDA
Systems website. http://www.tdasystems.com/

Regards,

Istvan Novak
SUN Microsystems

Mark Burford wrote:

>Hi guys, just subscribed.
>I understand the inductance of stripline to be Z0*delay_of_line
>Could anyone tell me what the inductance is for differential odd mode
>stripline please?  Does it change? I know Z0 for differential stripline
>is near double that of single stripline, but does this affect
>inductance?
>
>Many thanks
>
>Mark Burford
>Mburford AT xyratex DOT com
>
>
>  
>

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