Can you tell me if there will be noise problems, potentially, if I leave the VBUS and VUSB pins floating on the ADuCM350? Details attached.
We recommend to add the capacitors on VBUS and VUSB pins as the parts were tested and characterized with these external components.
Okay. Also, if I don't need backup power, can I leave VBACK floating? Or will leaving it float potentially allow noise to creep into the chip?
I don't have data on the noise performance without the VBACK but the evaluation ADuCM350 has added provision to disconnect the VBACK and leave it floating so I think you can leave it floating if not being used.
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