I'm trying to find the disadvantages of using magnetic couplers versus opto couplers (1). I'm deciding which of the two I should use to create a galvanic isolation between two PCB's that are going to communicate via SPI in a normal environment e.g house living room.
I have found several websites and documents that show the advantages of magnetic couplers vs opto couplers. Here is one that summarizes most advantages(2)
(2) http://www.nve.com/isopdf/WP1201.pdf (Page 3).
But I'm having a hard time believing that there is not a single disadvantage to using magnetic couplers versus opto couplers for galvanic isolation between two PCB's.
So my question is: Are there any disadvantages using magnetic couplers instead of opto couplers?