if TCXO only have one out pin. how to connect to XC1 and XC2

[nick yong]

my 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.

[nick yong]

the chip is nrf52833 .

[Naeem Maroof]

Hello,

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.

maybe you can look at the datasheet of your oscillator.

[hmolesworth]

XL1 is the input pin and XL2 is the output (excitation) pin for the 32.768kHz crystal oscillator on the nRF52833, so 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.