differential to pseudo differential

Hi,

???? The idea behind a differential connection is that it doesn't require gnd.
I'm lost by what You mean with full differential/2gnd and pseudo differential/1gnd.
There's always only one gnd potential in a device.
If in a device there were two differing potentials named gnd it'd hum (due to forming a ground loop)
gnd only plays a role regarding symmetrical connection.

jauu
Calvin
 
I should not have said ground.
I have audio ic with left pos/neg and right pos/neg (differential output)
another ic with left pos and right pos (single input) it also has pos/neg/pos (pseudo differntial input)
Can I connect the two neg from the differential output to the one neg of the pseudo differential input and be good?
If I use the left pos and right pos of the single ended input I'll have to build a differential to single circuit but I'm hopiing not to do that.

Thanks