I bumped into a couple of strange symbols that look like inductors or ferrite beads, I'm not sure what this is. Does anyone know what it is and what is the purpose of it? My guess is it has something to do with a general use of USB as a power supply. There are no parameters or anything to go by:
Here is a link to the document that has this schematic on page 28: https://www.ftdichip.com/Support/Documents/DataSheets/ICs/DS_FT4232H.pdf
My plan is to ignore it, but I am afraid it might be important for the stability of this chip
EDIT: it seems to be an LC filter, as mentioned on page 9 of the datasheet. I'm still not sure if that is what it is or how to make it.