AN930: EFR32 2.4 GHz Matching Guide
The EFR32 devices include chip variants that provide 2.4 GHz-
only operation, sub-GHz-only operation, or dual-band (2.4 GHz
and sub-GHz) operation. In addition, the EFR32 chips are availa-
ble in a 7x7 mm 48-pin package and a 5x5 mm 32-pin package.
This application note describes the matching techniques applied
to the EFR32 Wireless Gecko Portfolio in the 2.4 GHz band.
For information on PCB layout requirements for proper 2.4 GHz operation, refer to
AN928: EFR32 Layout Design Guide
. Refer to
AN933: EFR32 2.4 GHz Minimal BOM
for information on minimizing the bill of materials. For information on the matching pro-
cedure for the sub-GHz path, refer to
AN923: EFR32 sub-GHz Matching Guide
.
KEY POINTS
• Description of the applied 2.4 GHz
matching networks and techniques for the
EFR32 device
• Detailed discussion of the design steps
and design examples
• Three different EFR32 versions: 7x7 mm
48-pin dual band version, 7x7 mm 48-pin
2.4 GHz version, and 5x5 mm 32-pin 2.4G
Hz version.
• Measured TX spectrum and RX sensitivity
results
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