SC20-W_Manual_R1.0 Confidential / Released 21 / 41
5
Antenna Interface
SC20-W antenna interface includes a Wi-Fi/BT antenna. The antenna interface has an impedance of
50
Ω.
5.1.
Wi-Fi/BT Antenna Interface
The following tables show the Wi-Fi/BT antenna pin
‟s definition and frequency specification.
Table 5: Pin Definition of Wi-Fi/BT Antenna
Pin Name
Pin No.
I/O
Description
Comment
ANT_WIFI/BT
77
IO
Wi-Fi/BT antenna
50
Ω impedance
Table 6: Wi-Fi/BT Frequency
Type
Frequency
Unit
Wi-Fi(2.4G)
2412-2462
MHz
Wi-Fi(5G)
5180~5825
MHz
BT4.1 LE
2402~2480
MHz
A reference circuit design for Wi-Fi/BT antenna is shown as below. A
π-type matching circuit should be
reserved for better RF performance. The capacitors are not mounted by default.
ANT_WIFI/BT
R1 0R
C1
Module
2.4G/5G
antenna
NM
C2
NM