EFR32FG12 Datasheet, PDF (112/183 Pages) –

EFR32FG12 Flex Gecko Proprietary Protocol SoC Family Data Sheet
Typical Connection Diagrams
5.2 RF Matching Networks
Typical RF matching network circuit diagrams are shown in Figure 5.4 Typical 2.4 GHz RF impedance-matching network circuits on
page 107 for applications in the 2.4GHz band, and in Figure 5.5 Typical Sub-GHz RF impedance-matching network circuits on page
108 for applications in the sub-GHz band. Application-specific component values can be found in the EFR32 Reference Manual. For
low RF transmit power applications less than 13dBm, the two-element match is recommended. For OPNs supporting high power RF
transmission, the four-element match is recommended for high RF transmit power (> 13dBm).
Typical RF matching network circuit diagrams are shown in Figure 5.5 Typical Sub-GHz RF impedance-matching network circuits on
page 108 for applications in the sub-GHz band. Application-specific component values can be found in the EFR32 Reference Manual.
For low RF transmit power applications less than 13dBm, the two-element match is recommended. For OPNs supporting high power
RF transmission, the four-element match is recommended for high RF transmit power (> 13dBm).
2-Element Match for 2.4GHz Band
PAVDD
PAVDD
2G4RF_IOP
2G4RF_ION
L0
50Ω
C0
4-Element Match for 2.4GHz Band
PAVDD
PAVDD
2G4RF_IOP
2G4RF_ION
L0
L1
50Ω
C0
C1
Figure 5.4. Typical 2.4 GHz RF impedance-matching network circuits
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