Re: ADC input
Posted:
Fri Sep 01, 2017 9:58 am
by QuickFix
A while back, I read that you have to turn off RF temporarily, to get (relatively) stable readings.
Re: ADC input
Posted:
Tue Sep 05, 2017 5:45 am
by NicoF
Hi
Thanks for the replies.
At first I did not use a proper 3.3 v regulator but now I have a LXDC2SCAAB-352 buck boost - magic !!
Now the readings are more stable since the ADC ref is also stable .
ADC input almost next to RF pin , not the best place but then the die is so small that even pin 16 is close to the rf circuit , external filter and cap close to input pin does help since the current in the batt voltage divider circuit is normally very small .
Regards
Nico