EFR32MG13 Mighty Gecko Multi-Protocol Wireless SoC Family Data Sheet
Electrical Specifications
4.1.10.9 Sub-GHz RF Transmitter characteristics for 315 MHz Band
Unless otherwise indicated, typical conditions are: T = 25 °C, VREGVDD = AVDD = IOVDD = 3.3 V, DVDD = RFVDD = External PA
Supply. RFVDD and external PA supply paths filtered using ferrites. Crystal frequency = 38.4 MHz. RF center frequency 315 MHz.
Table 4.32. Sub-GHz RF Transmitter characteristics for 315 MHz Band
Parameter
Symbol
FRANGE
Test Condition
Min
195
13.8
Typ
—
Max
358
Unit
MHz
dBm
RF tuning frequency range
Maximum TX Power1
POUTMAX
External PA supply connected to
DC-DC output
17.2
21.1
Minimum active TX Power
Output power step size
POUTMIN
-43.9
0.5
—
—
—
dBm
dB
POUTSTEP
POUTVAR_V
output power > 0 dBm
—
—
Output power variation vs
supply
1.8 V < VVREGVDD < 3.3 V, Exter-
nal PA supply = DC-DC output, T
= 25 °C
1.8
dB
Output power variation vs
temperature
POUTVAR_T
-40 to +85C
-40 to +125C
T = 25 °C
—
—
—
0.5
0.7
0.1
1.2
1.5
0.7
dB
dB
dB
Output power variation vs RF POUTVAR_F
frequency
Spurious emissions of har-
monics at 14 dBm output
power, Conducted measure-
ment, 14dBm match, Exter-
nal PA supply connected to
DC-DC output, Test Fre-
quency = 303 MHz
SPURHARM_FCC In restricted bands, per FCC Part
15.205 / 15.209
—
—
-47
-26
-42
-20
dBm
dBc
In non-restricted bands, per FCC
Part 15.231
Spurious emissions out-of-
band at 14 dBm output pow-
er, Conducted measurement,
14dBm match, External PA
supply connected to DC-DC
output, Test Frequency =
303 MHz
SPUROOB_FCC
In non-restricted bands, per FCC
Part 15.231
—
—
—
—
-26
-52
-61
-58
-20
-46
-56
-52
dBc
dBm
dBm
dBm
In restricted bands (30-88 MHz),
per FCC Part 15.205 / 15.209
In restricted bands (88-216 MHz),
per FCC Part 15.205 / 15.209
In restricted bands (216-960
MHz), per FCC Part 15.205 /
15.209
In restricted bands (>960 MHz),
per FCC Part 15.205 / 15.209
—
-47
-42
dBm
Note:
1. Supported transmit power levels are determined by the ordering part number (OPN). Transmit power ratings for all devices cov-
ered in this datasheet can be found in the Max TX Power column of the Ordering Information Table.
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