Pan9520 Rf Switch (Spdt) Control - Panasonic PAN9520 ETU User Manual

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PAN9520 ETU Evaluation Tool
Peripheral
Current measurement
PAN1781
Module native USB interface
Arduino interface
Breakout pins
Camera interface

3.15 PAN9520 RF Switch (SPDT) Control

For configuring the RF connection of the PAN9520, the RF connection contains a SPDT (Single
Pole Double Throw) RF switch (called SPDT herein after).
The switch connects the ESP32-S2's RF pin to either the module's on-board chip antenna or
the RF bottom pad. On the PAN9520 ETU, the bottom pad is connected to the U.FL connector
"RF". The SPDT control lines can be accessed via the pin header "SPDT Ctrl".
The following table shows valid configurations.
Please note that other configurations (than those that are shown below) lead
to unspecified states of the SPDT RF switch.
Valid Configurations
Configuration Description
Module's on-board chip antenna is used
Module's on-board chip antenna is used
(configured by on-board pull-resistors)
U.FL connector "RF" is used
User Guide Rev. 1.0
Status
Enabled
Enabled
Enabled
Enabled
Enabled
Enabled
Pin Configuration on "SPDT Ctrl"
3 PAN9520 ETU
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