Hello,
I'm looking at the CC1125 datasheet SWRS120E from June 2011 revised october 2014. In page 7 chapter 4.1 Absolute Maximum Ratings it specifies the Voltage on analog pins to be max 2.0V.
Does that also applies to the pin 17 where the PA is feeded by VDD?
We are experienced a high failure rate (50%) of the CC1125 in our design and we think we are doing something that seems to be damaging the transceiver. We are excluding ESD, Solder reflow temperature and we have also checked for voltage pikes coming from the mother board. Our production engineer has pointed out this 2.0V max on analog pins and the voltage we are now aplying VDD to pin 17 wich is above 3V.
The CC1125 continues to communicate to the uprocessor but does not seem to lock to the intended frequency of 460Mhz, it seems to be transmiting at few MHz lower, unlocked and with plenty of spurious. Could there be an explanation for this?
Thanks