Stm32wl33 with tcxo

[WWang.15]

Dear ST experts

If we want to use tcxo on stm32wl33, should we choose 1.8v or 3v3 power domain for the vcc of this tcxo?

[STTwo-32]

Hello @WWang.15 

You can use TCXO. At this stage we have only 1 reference design with TCXO (4-Layer Reference design based on SMDs with STM32WL3 QFN48 SoC - 169 MHz - 27 dBm). 

Usually, we used to supply it at VDD level (you can check the schematic).

Best Regards.

STTwo-32