EFR32BG1 Datasheet, PDF (56/163 Pages) Silicon Laboratories – Home and Building Automation

EFR32BG1 Blue Gecko Bluetooth® Smart SoC Family Data Sheet
Electrical Specifications
4.1.10.5 Sub-GHz RF Transmitter Characteristics in the 490 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 433 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 4.22. Sub-GHz RF Transmitter characteristics for 490 MHz Band
Parameter
Symbol
Test Condition
Min
Typ
Max
Unit
RF tuning frequency range F_RANGE
470
—
510
MHz
Maximum TX Power¹
POUT_MAX
PAVDD connected directly to ex-
18.5
21.1
ternal 3.3V supply
23
dBm
Minimum active TX Power POUT_MIN
-44.9
—
dBm
Output power step size
POUT_STEP
output power > 0 dBm
—
0.5
—
dB
Output power variation vs
POUT_{VAR_V}
at 20 dBm;1.8 V < V_VREGVDD <
—
4.3
—
dB
supply, peak to peak
3.3 V, PAVDD connected directly
to external supply
Output power variation vs
temperature, peak to peak
POUT_{VAR_T}
-40 to +85C at 20 dBm
—
0.2
0.9
dB
Output power variation vs RF POUT_{VAR_F}
frequency
—
0.2
0.4
dB
Harmonic emissions, fre-
quencies below 1GHz, per
China SRW Requirement,
Section 2.1
SPUR_{HARM_CN} 20 dBm output power setting,
490MHz
—
-41.3
-34.9
dBm
Harmonic emissions, fre-
quencies above 1GHz, per
China SRW Requirement,
Section 2.1
—
-47.2
-36
dBm
Spurious emissions,
48.5-72.5MHz, 76-108MHz,
167-223MHz, 470-556MHz,
606-798MHz, per China
SRW Requirement, Section
3
SPUR_{OOB_CN}
—
-57.5
—
dBm
Spurious emissions, other
frequencies below 1GHz, per
China SRW Requirement,
Section 2.1
—
-58.5
—
dBm
Spurious emissions, frequen-
cies above 1GHz, per China
SRW Requirement, Section
2.1
—
-47.9
—
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 Section 2. Ordering Information
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