Hello,
I'm currently designing a custom base board for cm3 modules because the official one does not fit.
My schematics and component choose will be almost identical to the normal one because I only need a very different form factor.
While reading through the official boards power supply section I wondered my self if these values are actually correct.
I wonder about resistors R22, R23, R24 and R25 as well as cap C21 and C22.
In the schematic these are either 0R or have no value.
I can calculate correct values using the chips datasheet:
http://www.mouser.com/ds/2/115/PAM2306-336770.pdf
But it still makes no sense to me why these are not the same as in the official board.
Using the Datasheet I would use these values:
R22=540k
R23=200k
R24=100k
R25=120k
C21=100pF
C22=100pF
Can someone explain the reasons for this to me ?
Sincerly Thalhammer