Gnss Antenna Interface - Quectel SC20 Series Hardware Design

Bluetooth 4.2 LE
NOTE
The supported Wi-Fi frequencies of SC20-J/-JL are 2400–2496 MHz and 5180–5825 MHz.
A reference circuit design for Wi-Fi/Bluetooth antenna interface is shown as below. A π-type matching
circuit should be reserved for better RF performance. The
should be placed as close to the antenna as possible and are mounted according to the actual debugging.
C1 and C2 are not mounted by default and the resistor is 0 Ω.
Figure 32: Reference Circuit Design for Wi-Fi/Bluetooth Antenna

6.3. GNSS Antenna Interface

The following tables show pin definition and frequency specification of the GNSS antenna interface.
Table 43: Pin Definition of GNSS Antenna Interface
Pin Name Pin No.
ANT_GNSS 121
SC20_Series_Hardware_Design
5180–5825
2402–2480
I/O Description
AI GNSS antenna interface
Smart Module Series
MHz
π-type matching components (R1, C1, C2)
Comment
50 Ω impedance
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