Rf Antenna Interfaces; Operating Frequency; Pin Definition Of Rf Antenna Interface - Quectel FC905A User Manual

Table 19: Pin Definition of GPIOs
Pin Name Pin No.
GPIO1 40
GPIO2 39
GPIO3 38
GPIO4 37

3.8. RF Antenna Interfaces

ANT_WIFI0/BT is the RF antenna pin, and the RF port requires 50 Ω characteristic impedance.

3.8.1. Operating Frequency

The operating frequency of FC905A is shown in the following.
Table 20: FC905A Operating Frequency
Feature
2.4 GHz Wi-Fi
5 GHz Wi-Fi
Bluetooth 5.1

3.8.2. Pin Definition of RF Antenna Interface

Pin definitions of the antenna interface are shown in the following table:
Table 21: Pin Definition of RF Antenna Interfaces
Pin Name Pin No.
ANT_WIFI0/BT 2
FC905A_Hardware_Design
I/O Description
DIO
DIO
General-purpose
input/output
DIO
DIO
Frequency
–
2.412 2.462
–5.825
5.180
2.402–2.480
I/O Description
AIO Wi-Fi0/Bluetooth antenna interface
Wi-Fi&Bluetooth Module Series
Comment
VIO power domain.
If unused, keep them open.
Unit
GHz
GHz
GHz
Comment
50 Ω impedance.
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