https://devzone.nordicsemi.com/f/nordic-q-a/117564/if-tcxo-only-have-one-out-pin-how-to-connect-to-xc1-and-xc2my chip is nrf52833. In guide document , the XC1 and XC2 would connect to capacity. Both pin is used. My project need one pin TCXO. which pin I should connect to? XC1 or XC2? how to handle the other pin? thanks.en-USTelligent Community 13Sat, 28 Dec 2024 00:43:40 GMThttps://devzone.nordicsemi.com/thread/516401?ContentTypeID=1Sat, 28 Dec 2024 00:43:40 GMT137ad170-7792-4731-bb38-c0d22fbe4515:e73d1c9a-aded-44c2-9761-2dff3628ecb3hmolesworth<p>XL1 is the input pin and XL2 is the output (excitation) pin for the 32.768kHz crystal oscillator on the nRF52833, so&nbsp;drive XL1 with TCXO and connect XL2 to GND. If you really meant to use an external 32MHz TCXO instead of a 32.768kHz TCXO then instead drive XC1 and leave XC2 unconnected; this is not a documented option.</p> <p><img alt=" " src="https://devzone.nordicsemi.com/resized-image/__size/640x480/__key/communityserver-discussions-components-files/4/pastedimage1733767448164v1.png" /></p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/516387?ContentTypeID=1Fri, 27 Dec 2024 20:06:11 GMT137ad170-7792-4731-bb38-c0d22fbe4515:5f528126-a790-431b-b352-1b38afdbb508Naeem Maroof<p>Hello,</p> <p>Crystal oscillator is a 2 pin device (correct me if I am wrong), and the circuit diagram using nrf52833 in the reference circuitry uses 2 pins to connect to the oscillator as below.</p> <p><img style="max-height:240px;max-width:320px;" src="https://devzone.nordicsemi.com/resized-image/__size/640x480/__key/communityserver-discussions-components-files/4/pastedimage1735329827785v1.png" alt=" " /></p> <p></p> <p>maybe you can look at the datasheet of your oscillator.</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/516238?ContentTypeID=1Wed, 25 Dec 2024 06:49:30 GMT137ad170-7792-4731-bb38-c0d22fbe4515:06392b13-ce36-41bd-af7d-432b333561e8nick yong<p>the chip is nrf52833 .</p><div style="clear:both;"></div>