https://devzone.nordicsemi.com/f/nordic-q-a/21351/nrf52-lfsynth-accurayWe are currently porting our proprietary stack from the nRF51 to the nRF52. To save on BOM we are using an external 20ppm 32Mhz crystal to synthesize a 32Khz clock (power consumption is not an issue in this application). Clock configuration is as folowsen-USTelligent Community 13Thu, 13 Apr 2017 12:30:08 GMThttps://devzone.nordicsemi.com/thread/83638?ContentTypeID=1Thu, 13 Apr 2017 12:30:08 GMT137ad170-7792-4731-bb38-c0d22fbe4515:143c9d23-3766-4ee1-b082-f6bad70a6a18AmbystomaLabs<p>You should check the accuracy of your 32MHz crystal against a calibrated device. I suspect you have placed incorrect load caps and have shifted the center frequency of the crystal. There is no other reason for a frequency difference. I&#39;m sure Nordic has enough bits to divide down a 32MHz clock.</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/83637?ContentTypeID=1Thu, 13 Apr 2017 11:33:48 GMT137ad170-7792-4731-bb38-c0d22fbe4515:499c5c0c-12bd-47da-ba4b-a8c0ff384322endnode<p>(I guess that&#39;s the reason why Nordic don&#39;t support LF synth clock source in their stacks...;)</p><div style="clear:both;"></div>