TXCO maximum voltage

[kolbasz (kolbasz janos)]

Hi Everybody!

Anyone knows what is the maximum voltage of the TCXO in RAK4631?
I cannot find the exact model name and parameters.
It is a standard one that can be run with 3.3V?

Thanks

[beegee (Bernd Giesecke)]

Welcome to the forum @kolbasz

The TCXO is powered by DIO3 of the SX1262.
You can power it with voltages between 1.6 and 3.3V

/*!
 * \brief Represents the voltage used to control the TCXO on/off from DIO3
 */
typedef enum
{
	TCXO_CTRL_1_6V = 0x00,
	TCXO_CTRL_1_7V = 0x01,
	TCXO_CTRL_1_8V = 0x02,
	TCXO_CTRL_2_2V = 0x03,
	TCXO_CTRL_2_4V = 0x04,
	TCXO_CTRL_2_7V = 0x05,
	TCXO_CTRL_3_0V = 0x06,
	TCXO_CTRL_3_3V = 0x07,
} RadioTcxoCtrlVoltage_t;

[kolbasz (kolbasz janos)]

Thank you! I’ve searched for this everywhere