If you place a bead on the ground...
Imagine there's a current spike (like ezverything switches on), it's a transiant, but it's normal
Here, your choke will filter this, and will "lift" the ground potential. But only the ground of the 7220.
If this phenomen is big enough, a 0 at the output could even be ween ad a 1 for other devices connected to the normal ground
Imagine there's a current spike (like ezverything switches on), it's a transiant, but it's normal
Here, your choke will filter this, and will "lift" the ground potential. But only the ground of the 7220.
If this phenomen is big enough, a 0 at the output could even be ween ad a 1 for other devices connected to the normal ground
Bernhard said:
As well, as I/O currents are also ground related
You could however decouple all I/O but will end up with something that wont function at all
What is the rationale behind wanting to add a ferrite inductor ?
You probably have read to many reccommmendations from AD. TI, BB and Crystal
forget about them, please.........
regards
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