https://devzone.nordicsemi.com/f/nordic-q-a/10383/nrf51-sensitivity-on-dcdcHello, What is the effect on the radio sensitivity of using DCDC mode on the nRF51 rev3? How many dB do we lose? Thanks, Selimen-USTelligent Community 13Tue, 24 Nov 2015 11:23:47 GMThttps://devzone.nordicsemi.com/thread/38544?ContentTypeID=1Tue, 24 Nov 2015 11:23:47 GMT137ad170-7792-4731-bb38-c0d22fbe4515:982497bf-dc37-457b-a7ff-8f8b71b3ccc8ovrebekk<p>Hi</p> <p>The sensitivity loss when using the DCDC is very small.</p> <p>Worst case you might lose up to 1dB, typically it is about 0.5dB.</p> <p>Best regards<br /> Torbjørn</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/38543?ContentTypeID=1Mon, 23 Nov 2015 10:59:57 GMT137ad170-7792-4731-bb38-c0d22fbe4515:22a8bf3b-76b8-4c04-b1f7-05dba8d54e5bselim<p>Thanks Fredrik for clarifying my question. This is exactly it.</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/38542?ContentTypeID=1Mon, 23 Nov 2015 09:36:52 GMT137ad170-7792-4731-bb38-c0d22fbe4515:f961f89b-ae21-4473-afa0-6e28baa79595FredrikK<p>I think the question is more related to whether the internal DCDC of the nRF51 will affect receiver sensitivity (assuming the reference layout is used).</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/38541?ContentTypeID=1Sat, 21 Nov 2015 02:18:40 GMT137ad170-7792-4731-bb38-c0d22fbe4515:d3727271-8d1e-4281-ad88-ad55ad210438Dave_couling<p>This depends alot on your Hardware layout. If you have a noisy PCB design it could desense your RF circuitry.</p><div style="clear:both;"></div>