Digital Audio I/O Transformer Selection

Hi,

I'd like to implement a digital audio interface (AES3 110Ohms via XLR) 
with galvanic isolation to avoid ground loops. Here, on pages 43 and 45, 
is an example of what I need:
http://www.farnell.com/datasheets/1831366.pdf
However I don't know how to select the correct transformer for my 
application.

As an example, here is a datasheet of digital audio transformers by 
Murata:
http://www.murata-ps.com/data/magnetics/kmp_da100.pdf
On what parameters in an application do I base my decision for one of 
the primary inductance ranges?
A brief explanation or a link to some further reading material would be 
highly appreciated :)

Andy