On Thu, 18 Feb 2010 21:53:48 +0100, "Dario Greggio" said:

> But now I have that doubt, in that that other datasheet does tell that 
> the 2 windings are equal...

Hi Dario,

The impedance is the same, because the number of turns of wire is the
same. 

They are separate windings wound one on top of the other, and one uses
more wire and that is why the DC resistance is different. 

But DC resistance is not really important and should not be the deciding
factor about which winding to use for TX and RX.

Cheerful regards,

Bob

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