One of the CC254x support documents suggests using a 32.768 kHz external oscillator with 40 ppm frequency accuracy to achieve aggressive power savings. Is there a measure of the attainable power savings if a higher accuracy 32.768 kHz oscillator was used?
I was planning on getting access to a 5 ppm 32.768 kHz XO (SiT1552) if the additional cost of using this XO will result in extending battery life in our medical activity monitor device.
Will appreciate some guidance on this approach and other related power saving schemes.
Thanks.
-JP