EFR32FG12 Datasheet, PDF (46/183 Pages) –

EFR32FG12 Flex Gecko Proprietary Protocol SoC Family Data Sheet
Electrical Specifications
4.1.9.8 RF Receiver Characteristics for 802.15.4 DSSS-OQPSK in the 2.4 GHz 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 2.45 GHz.
Table 4.19. RF Receiver Characteristics for 802.15.4 DSSS-OQPSK in the 2.4 GHz Band
Parameter
Symbol
Test Condition
Min
Max usable receiver input SAT
level, 1% PER
Signal is reference signal³. Packet
—
length is 20 octets.
Sensitivity, 1% PER
SENS
Signal is reference signal. Packet
—
length is 20 octets. Using DC-DC
converter.
Signal is reference signal. Packet
—
length is 20 octets. Without DC-
DC converter.
Co-channel interferer rejec- CCR
tion, 1% PER
Desired signal 3 dB above sensi-
—
tivity limit
High-side adjacent channel
rejection, 1% PER. Desired
is reference signal at 3dB
above reference sensitivity
level⁴
ACR_P1
Interferer is reference signal at +1
—
channel-spacing.
Interferer is filtered reference sig-
—
nal¹ at +1 channel-spacing.
Interferer is CW at +1 channel-
—
spacing².
Low-side adjacent channel
rejection, 1% PER. Desired
is reference signal at 3dB
above reference sensitivity
level⁴
ACR_M1
Interferer is reference signal at -1
—
channel-spacing.
Interferer is filtered reference sig-
—
nal¹ at -1 channel-spacing.
Interferer is CW at -1 channel-
—
spacing.
Alternate channel rejection,
1% PER. Desired is refer-
ence signal at 3dB above
reference sensitivity level⁴
ACR₂
Interferer is reference signal at ± 2
—
channel-spacing
Interferer is filtered reference sig-
—
nal¹ at ± 2 channel-spacing
Interferer is CW at ± 2 channel-
—
spacing
Image rejection , 1% PER, IR
Desired is reference signal at
3dB above reference sensi-
tivity level⁴
Interferer is CW in image band²
—
Blocking rejection of all other
channels. 1% PER, Desired
is reference signal at 3dB
above reference sensitivity
level⁴. Interferer is reference
signal
BLOCK
Interferer frequency < Desired fre-
—
quency - 3 channel-spacing
Interferer frequency > Desired fre-
—
quency + 3 channel-spacing
Blocking rejection of 802.11g BLOCK_80211G Desired is reference signal at 6dB
—
signal centered at +12MHz
above reference sensitivity level⁴
or -13MHz
Typ
10
-102.7
-102.7
-4.6
40.7
47
54.3
40.8
47.5
56.5
51.5
53.7
62.4
50.4
58.5
56.4
53
Max
Unit
—
dBm
—
dBm
—
dBm
—
dB
—
dB
—
dB
—
dB
—
dB
—
dB
—
dB
—
dB
—
dB
—
dB
—
dB
—
dB
—
dB
—
dB
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