https://devzone.nordicsemi.com/f/nordic-q-a/66916/lf-clock-softdeviceSorry to bring up a topic which seems to have been discussed already, but I don&#39;t see an answer to my specific questions. The original design of my project was to have both crystals for there respective clocks. Now we are considering to drop the LFen-USTelligent Community 13Fri, 09 Oct 2020 12:12:39 GMThttps://devzone.nordicsemi.com/thread/274031?ContentTypeID=1Fri, 09 Oct 2020 12:12:39 GMT137ad170-7792-4731-bb38-c0d22fbe4515:288dfb11-c4cb-4f16-9e78-58998451739fJared<p>Hi,</p> [quote user=""]Does that really mean I should prever the RC LF clock source over the synthethised mode?[/quote] <p>If you&#39;re using the Softdevice:&nbsp; Yes that&#39;s exactly what it means!. The synthesized LF clock source has not been included in any of our tests with the softdevice as we see the RC option as a better option due to the lower power consumption.&nbsp;</p> <p>regards</p> <p>Jared</p><div style="clear:both;"></div>