Post Go back to editing

ADuM6402 180MHz immunity


Thanks to your advice, the 360MHz EMI was improved 20dB.

But the result of 180MHz EMI was not good compared with the expectation.

They took a measure as below,

change from 2-layer to 4 layer

Edge guard

stitching capacitor: 30pF

Safety cap: 2200pF

ferrite at Viso and GNDiso 

It is helpful if you have advice.

The current noise 54dB

Target noise 40dB


Parents Reply Children
No Data