
4.1.8.3 RF Receiver Characteristics for 802.15.4 DSSS-OQPSK in the 2.4 GHz Band
Unless otherwise indicated, typical conditions are: T = 25 °C, VBATT = 3.3 V. DC-DC on. Crystal frequency = 38.4 MHz. RF center
frequency 2.45 GHz. Conducted measurement from the antenna feedpoint.
Table 4.13. RF Receiver Characteristics for 802.15.4 DSSS-OQPSK in the 2.4 GHz Band
Parameter
Symbol
Test Condition
Min
Typ
Max
Unit
Max usable receiver input
level, 1% PER
SAT
Signal is reference signal
length is 20 octets.
—
10
—
dBm
Sensitivity, 1% PER
SENS
Signal is reference signal. Packet
length is 20 octets. Using DC-DC
converter.
—
-101.5
—
dBm
Co-channel interferer rejec-
tion, 1% PER
CCR
Desired signal 3 dB above sensi-
tivity limit
—
-4.7
—
dB
High-side adjacent channel
rejection, 1% PER. Desired
is reference signal at 3dB
above reference sensitivity
level
ACR
P1
Interferer is reference signal at +1
channel-spacing.
—
40.2
—
dB
Interferer is filtered reference sig-
nal
—
49.7
—
dB
Interferer is CW at +1 channel-
spacing
—
55.6
—
dB
Low-side adjacent channel
rejection, 1% PER. Desired
is reference signal at 3dB
above reference sensitivity
level
ACR
M1
Interferer is reference signal at -1
channel-spacing.
—
40.7
—
dB
Interferer is filtered reference sig-
nal
—
49.3
—
dB
Interferer is CW at -1 channel-
spacing.
—
57.9
—
dB
Alternate channel rejection,
1% PER. Desired is refer-
ence signal at 3dB above
reference sensitivity level
ACR
2
Interferer is reference signal at ± 2
channel-spacing
—
52.0
—
dB
Interferer is filtered reference sig-
nal
—
55.1
—
dB
Interferer is CW at ± 2 channel-
spacing
—
64.5
—
dB
Image rejection , 1% PER,
Desired is reference signal at
3dB above reference sensi-
tivity level
IR
Interferer is CW in image band
—
51.4
—
dB
Blocking rejection of all other
channels. 1% PER, Desired
is reference signal at 3dB
above reference sensitivity
level
. Interferer is reference
signal
BLOCK
Interferer frequency < Desired fre-
quency - 3 channel-spacing
—
56.6
—
dB
Interferer frequency > Desired fre-
3 channel-spacing
—
57.8
—
dB
Blocking rejection of 802.11g
signal centered at +12MHz
or -13MHz
BLOCK
80211G
Desired is reference signal at 6dB
above reference sensitivity level
—
46.8
—
dB
Upper limit of input power
range over which RSSI reso-
lution is maintained
RSSI
MAX
—
—
5
dBm
MGM13S Mighty Gecko SiP Module Data Sheet
Electrical Specifications
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