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User Manual
3. RF Specifications
3.1. RF connections
The M14Q2 has three RF pads; developers may connect them via 50 Ω traces to the main board.
ANT0_TRX pad (Pin15) – Primary RX/TX path
ANT1_DRX pad (Pin21) – Diversity path
ANT_GNSS pad (Pin9) – NA
3.2. RF Layout guidance
It is recommended that grounds not be present under the surface of the RF pads in the layout. Details
are included below.
Layer1
Layer2
Layer3
0.5mm
0.5
m
m
GND
GND
GND
Pin9
Pin15
Pin21
The RF trace between RF pads and antenna should as shorter as possible with 50ohm characteristic
impedance.