EFR32BG1 Datasheet, PDF (46/163 Pages) Silicon Laboratories – Home and Building Automation

EFR32BG1 Blue Gecko Bluetooth® Smart SoC Family Data Sheet
Electrical Specifications
4.1.10.1 Sub-GHz RF Transmitter Characteristics in the 915 MHz Band
Unless otherwise indicated, typical conditions are: T_OP = 25 °C,VREGVDD = AVDD = IOVDD = 3.3 V, DVDD = RFVDD = PAVDD.
RFVDD and PAVDD path is filtered using ferrites. Crystal frequency=38.4MHz. RF center frequency 915 MHz. Test circuit according to
Figure 5.2 EFR32BG1 Typical Application Circuit: Configuration with DC-DC converter (PAVDD from VDCDC) on page 98 and Fig-
ure 5.5 Typical Sub-GHz RF impedance-matching network circuits on page 101.
Table 4.18. Sub-GHz RF Transmitter characteristics for 915 MHz Band
Parameter
RF tuning frequency range
Maximum TX Power¹
Symbol
F_RANGE
POUT_MAX
Minimum active TX Power
Output power step size
Output power variation vs
supply at POUT_MAX
POUT_MIN
POUT_STEP
POUT_{VAR_V}
Output power variation vs
temperature, peak to peak
POUT_{VAR_T}
Output power variation vs RF POUT_{VAR_F}
frequency
Test Condition
Min
902
PAVDD connected directly to ex-
17.7
ternal 3.3V supply, 20 dBm output
power setting
PAVDD connected to DC-DC out-
10.4
put, 14 dBm output power setting
—
output power > 0 dBm
—
1.8 V < V_VREGVDD < 3.3 V,
—
PAVDD connected to external
supply
1.8 V < V_VREGVDD < 3.3 V,
—
PAVDD connected to DC-DC out-
put
-40 to +85C with PAVDD connec-
—
ted to external supply
-40 to +85C with PAVDD connec-
—
ted to DC-DC output
PAVDD connected to external
—
supply
PAVDD connected to DC-DC out-
—
put
Typ
—
20.3
13.8
-45.5
0.5
4.8
1.9
0.6
0.7
0.2
0.3
Max
Unit
930
MHz
24.5
dBm
17.6
dBm
—
dBm
—
dB
—
dB
—
dB
1.3
dB
1.4
dB
0.6
dB
0.6
dB
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