we are using ADU315x familiy devices for SPI isolation. Eveything works right but we want to improve EMI behaviour.
We already looked through the application notes AN-1109 and AN-0971 dealing with other types of iCouplers and isoPower and realized PCB stitching capacitor which works great to mitigate emissions.
But when looking through AD315x's datasheet I did not see any reference to those documents.
So my question is: Do you also recommend those techniques for AD315x series or is that not suitable for these parts? If I take a close look at the switching frequencies using a spectrum analyser I recognize switching frequencies and multiples of that up to more or less 100MHz.
Thanks in advance