EFR32FG12 Datasheet, PDF (54/183 Pages) –

EFR32FG12 Flex Gecko Proprietary Protocol 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 = PAVDD.
RFVDD and PAVDD path is filtered using ferrites. Crystal frequency=38.4 MHz. RF center frequency 868 MHz.
Table 4.22. Sub-GHz RF Transmitter characteristics for 868 MHz Band
Parameter
Symbol
Test Condition
Min
RF tuning frequency range F_RANGE
863
Maximum TX Power¹
POUT_MAX
PAVDD connected directly to ex-
17.1
ternal 3.3V supply, 20 dBm output
power setting
PAVDD connected to DC-DC out-
11.4
put, 14 dBm output power setting
Minimum active TX Power POUT_MIN
—
Output power step size
POUT_STEP
output power > 0 dBm
—
Output power variation vs
POUT_{VAR_V_NO} 1.8 V < V_VREGVDD < 3.3 V,
—
supply at POUT_MAX
DCDC
PAVDD connected to external
supply
1.8 V < V_VREGVDD < 3.3 V,
—
PAVDD connected to DC-DC out-
put
Output power variation vs
POUT_{VAR_T}
-40 to +85C with PAVDD connec-
—
temperature, peak to peak
ted to external supply
-40 to +85C with PAVDD connec-
—
ted to DC-DC output
Output power variation vs RF POUT_{VAR_F_NO} PAVDD connected to external
—
frequency
DCDC
supply
PAVDD connected to DC-DC out-
—
put
Spurious emissions of har- SPUR_{HARM_ETSI} Per ETSI EN 300-220, Section
—
monics, Conducted meas-
7.8.2.1
urement, PAVDD connected
to DC-DC output
Spurious emissions out-of- SPUR_{OOB_ETSI} Per ETSI EN 300-220, Section
—
band, Conducted measure-
7.8.2.1 (47-74 MHz, 87.5-118
ment, PAVDD connected to
MHz, 174-230 MHz, and 470-862
DC-DC output
MHz)
Per ETSI EN 300-220, Section
—
7.8.2.1 (other frequencies below 1
GHz)
Per ETSI EN 300-220, Section
—
7.8.2.1 (frequencies above 1
GHz)
Error vector magnitude (off- EVM
set EVM), per 802.15.4-2015
Signal is DSSS-BPSK reference
—
packet. Modulated according to
802.15.4-2015 DSSS-BPSK in the
868MHz band, with pseudo-ran-
dom packet data content. PAVDD
connected to external 3.3V supply
Typ
—
19.3
13.7
-43.5
0.5
5
2
0.6
0.5
0.2
0.2
-35
-59
-60
-36
5.7
Max
Unit
876
MHz
22.9
dBm
16.5
dBm
—
dBm
—
dB
—
dB
—
dB
0.9
dB
1.2
dB
0.6
dB
0.8
dB
-30
dBm
-54
dBm
-36
dBm
-30
dBm
—
%rms
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