https://devzone.nordicsemi.com/f/nordic-q-a/82802/nrf9160-lfxo-accuracy-over-temperatureHi, in Product Specification document of nRF9160 Product Specification I found that accuracy of LFXO is +/-20ppm is this accuracy valid for all the temperature range -40° to +80°C ? or will-it vary somehow?en-USTelligent Community 13Wed, 15 Dec 2021 14:41:46 GMThttps://devzone.nordicsemi.com/thread/343702?ContentTypeID=1Wed, 15 Dec 2021 14:41:46 GMT137ad170-7792-4731-bb38-c0d22fbe4515:9388f670-6b02-4e44-9f60-362f20e21e7fMartin Sivertsen<p>Hello Catalina,</p> <p><a href="https://www.ndk.com/en/products/search/crystal/1190935_1494.html">Here </a>are the&nbsp;specifications of a crystal that is of the same kind that is inside the nRF9160 System in Package.</p> <p>We can see that the frequency tolerance is valid within&nbsp;25±3°C, outside of that temperature range we can apply the temperature coefficient and get a parabolic curve that shows the deviation in ppm.</p> <p>Take a look at <a href="https://www.st.com/resource/en/application_note/an2971-using-the-typical-temperature-characteristics-of-32-khz-crystal-to-compensate-the-m41t83-and-m41t93-serial-realtime-clocks--stmicroelectronics.pdf">this </a>paper to see how it is applied.</p> <p>Best regards,</p> <p>Martin S.</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/343634?ContentTypeID=1Wed, 15 Dec 2021 12:37:47 GMT137ad170-7792-4731-bb38-c0d22fbe4515:03b50b01-abe0-4f28-bc87-7fb65ec1a5e6Martin Sivertsen<p>Hello,</p> <p>I&#39;ll look into this and get back to you by tomorrow.</p> <p>Best regards,</p> <p>Martin S.</p><div style="clear:both;"></div>