EFR32MG13 Mighty Gecko Multi-Protocol Wireless SoC Family Data Sheet
Electrical Specifications
4.1.10.3 Sub-GHz RF Transmitter characteristics for 868 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 868 MHz.
Table 4.26. Sub-GHz RF Transmitter characteristics for 868 MHz Band
Parameter
Symbol
FRANGE
Test Condition
Min
863
17.1
Typ
—
Max
876
Unit
MHz
dBm
RF tuning frequency range
Maximum TX Power1
POUTMAX
External PA supply = 3.3V, 20
dBm output power setting
19.3
22.9
External PA supply connected to
DC-DC output, 14 dBm output
power setting
11.4
13.7
16.5
dBm
Minimum active TX Power
Output power step size
POUTMIN
—
—
—
-43.5
0.5
5
—
—
—
dBm
dB
POUTSTEP
POUTVAR_V
output power > 0 dBm
Output power variation vs
supply at POUTMAX
1.8 V < VVREGVDD < 3.3 V, Exter-
nal PA supply = 3.3 V, T = 25 °C
dB
1.8 V < VVREGVDD < 3.3 V, Exter-
nal PA supply connected to DC-
DC output, T = 25 °C
—
2
—
dB
Output power variation vs
temperature, peak to peak
POUTVAR_T
-40 to +85 °C with External PA
supply = 3.3 V
—
—
—
0.6
0.8
0.5
0.9
1.3
1.2
dB
dB
dB
-40 to +125 °C with External PA
supply = 3.3 V
-40 to +85 °C with External PA
supply connected to DC-DC out-
put
-40 to +125 °C with External PA
supply connected to DC-DC out-
put
—
0.7
1.5
dB
Output power variation vs RF POUTVAR_F
frequency
External PA supply = 3.3 V, T =
25 °C
—
—
—
0.2
0.2
-35
0.6
0.8
-30
dB
dB
External PA supply connected to
DC-DC output, T = 25 °C
Spurious emissions of har-
monics, Conducted meas-
urement, External PA supply
connected to DC-DC output,
Test Frequency = 868 MHz
SPURHARM_ETSI Per ETSI EN 300-220, Section
7.8.2.1
dBm
Spurious emissions out-of-
band, Conducted measure-
ment, External PA supply
connected to DC-DC output,
Test Frequency = 868 MHz
SPUROOB_ETSI Per ETSI EN 300-220, Section
7.8.2.1 (47-74 MHz, 87.5-118
MHz, 174-230 MHz, and 470-862
MHz)
—
-59
-54
dBm
Per ETSI EN 300-220, Section
7.8.2.1 (other frequencies below 1
GHz)
—
—
-42
-36
-36
-30
dBm
dBm
Per ETSI EN 300-220, Section
7.8.2.1 (frequencies above 1
GHz)
silabs.com | Building a more connected world.
Rev. 1.4 | 65
SILICON [ SILICON ]
