No battery Vsys issue is USB overcurrent?

[Andy Green]

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Somebody in the thread at some point said:

| I didn't see why it shouldn't be coincidence.  The fact is we get a 30us
| dropout on Vsys, keep adding caps you can stop it dipping below a
| critical level in the 30us.  If you want to talk coincidence ;-) there
| is a third great story to explain it that didn't pan out: 30us is a
| commonly used filter period in pcf50633 and is also the duration of the

Of course 30us ~= 1/32kHz, we're saying it's for "one pcf clock" that
Vsys is disrupted -- probably highly significant if we can figure out why.

- -Andy
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