load capacitor calculation of nRF52840 xtalshttps://devzone.nordicsemi.com/f/nordic-q-a/63179/load-capacitor-calculation-of-nrf52840-xtalsHi, there, I have a question about HFXO load capacitors and LFXO load capacitors. Each load capacitors of nRF52840-DK are like below. And i checked BOM file to find out load capacitance of each xtals. XTAL SMD 2016, 32MHz, Cl=8pF, Tol: &#177;10ppmen-USTelligent Community 13Wed, 01 Jul 2020 00:30:02 GMTRE: load capacitor calculation of nRF52840 xtalshttps://devzone.nordicsemi.com/thread/257691?ContentTypeID=1Wed, 01 Jul 2020 00:30:02 GMT137ad170-7792-4731-bb38-c0d22fbe4515:2172059b-217a-4746-b9ec-5e6ecad04c16James_Lee_K<p>Hi, Jared,</p> <p></p> <p>Thank you very much.</p> <p>Your answer is clear for me.</p><div style="clear:both;"></div>RE: load capacitor calculation of nRF52840 xtalshttps://devzone.nordicsemi.com/thread/257619?ContentTypeID=1Tue, 30 Jun 2020 13:49:51 GMT137ad170-7792-4731-bb38-c0d22fbe4515:f462d728-7d62-45ee-95c7-f8dc28cd2f79Jared<p>Hi,</p> <p>You forgot the C_pcb which is ~1pF. This gives 12 pF for HFXO and 13 pF for LFXO load capacitors. 12 pF was probably chosen for both as it&#39;s a standard value for a capacitor and is easily available. In addition, the requirement for the accuracy on the LFXO is not as high as for the HFXO.</p> <p>best regards</p> <p>Jared</p><div style="clear:both;"></div>