EFR32FG12 Datasheet, PDF (67/183 Pages) –

EFR32FG12 Flex Gecko Proprietary Protocol SoC Family Data Sheet
Electrical Specifications
4.1.10.10 Sub-GHz RF Receiver Characteristics for 315 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 315 MHz.
Table 4.29. Sub-GHz RF Receiver Characteristics for 315 MHz Band
Parameter
Symbol
Test Condition
Min
Tuning frequency range
F_RANGE
195
Max usable input level, 0.1% SAT_2k4
Desired is reference 2.4 kbps
—
BER
GFSK signal¹
Max usable input level, 0.1% SAT_38k4
Desired is reference 38.4 kbps
—
BER
GFSK signal²
Sensitivity
SENS
Desired is reference 2.4 kbps
—
GFSK signal¹, 0.1% BER
Desired is reference 38.4 kbps
—
GFSK signal², 0.1% BER
Desired is reference 500 kbps
—
GFSK signal³, 0.1% BER
Level above which
RFSENSE_TRIG CW at 315 MHz
—
RFSENSE will trigger⁴
Level below which
RFSENSE_THRES CW at 315 MHz
—
RFSENSE will not trigger⁴
Adjacent channel selectivity, C/I₁
Interferer is CW at ± 1 ×
channel-spacing
Desired is 2.4 kbps GFSK signal¹
54.1
at 3dB above sensitivity level,
0.1% BER
Desired is 38.4kbps GFSK signal²
—
at 3dB above sensitivity level,
0.1% BER
Alternate channel selectivity, C/I₂
Interferer is CW at ± 2 ×
channel-spacing
Desired is 2.4kbps GFSK signal¹
—
at 3dB above sensitivity level,
0.1% BER
Desired is 38.4kbps GFSK signal²
—
at 3dB above sensitivity level²,
0.1% BER
Image rejection, Interferer is C/I_IMAGE
CW at image frequency
Desired is 2.4kbps GFSK signal¹
—
at 3dB above sensitivity level,
0.1% BER
Desired is 38.4kbps GFSK signal²
—
at 3dB above sensitivity level,
0.1% BER
Blocking selectivity, 0.1%
BER. Desired is 2.4 kbps
GFSK signal¹ at 3 dB above
sensitivity level
C/I_BLOCKER
Interferer CW at Desired ± 1 MHz
—
Interferer CW at Desired ± 2 MHz
—
Interferer CW at Desired ± 10
72.6
MHz
Upper limit of input power RSSI_MAX
—
range over which RSSI reso-
lution is maintained
Typ
—
10
10
-123.2
-111.4
-98.8
-28.1
-50
63.6
Max
358
—
—
-120.7
-108.6
-95.5
—
—
—
Unit
dBm
dBm
dBm
dBm
dBm
dBm
dBm
dBm
dB
49.9
—
dB
64.2
—
dB
56.2
—
dB
53
—
dB
51.4
—
dB
75
—
dB
76.5
—
dB
91.9
—
dB
—
5
dBm
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