HT-RA62 HF module. DIO3 voltage required for X1

The data sheet for the HT-RA62 does not indicate the voltage that needs to be output from DIO3 in order to power X1 (assume a TXCO).

According to the code in sx126x.c (line 82) it is 1.8V, but does this apply to the SX1262?

Alternatively, please can you tell me what component X1 is.

Thank you in advance.

The X1 component is TG-5006CJ-47L.