SX1276 View Datasheet(PDF) - Semtech Corporation
Part Name
Description
Manufacturer
SX1276 Datasheet PDF : 132 Pages
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WIRELESS, SENSING & TIMING
SX1276/77/78/79
DATASHEET
Symbol
Description
RFS_L125_LF
RF sensitivity, Long-Range Mode,
highest LNA gain, Band 3,
125 kHz bandwidth
RFS_L250_LF
RF sensitivity, Long-Range Mode,
highest LNA gain, Band 3
250 kHz bandwidth
RFS_L500_LF
RF sensitivity, Long-Range Mode,
highest LNA gain, Band 3
500 kHz bandwidth
CCR_LCW
Co-channel rejection
Single CW tone = Sens +6 dB
1% PER
CCR_LL
Co-channel rejection
ACR_LCW
Adjacent channel rejection
Conditions
SF = 6
SF = 7
SF = 8
SF = 9
SF = 10
SF = 11
SF = 12
SF = 6
SF = 7
SF = 8
SF = 9
SF = 10
SF = 11
SF = 12
SF = 6
SF = 7
SF = 8
SF = 9
SF = 10
SF = 11
SF = 12
SF = 7
SF = 8
SF = 9
SF = 10
SF = 11
SF = 12
Interferer is a LoRaTM signal
using same BW and same SF.
Pw = Sensitivity + 3 dB
Interferer is 1.5*BW_L from the
wanted signal center frequency
1% PER, Single CW tone =
Sens + 3 dB
IMR_LCW
FERR_L
SF = 7
SF = 12
Image rejection after calibration.
1% PER, Single CW tone =
Sens +3 dB
Maximum tolerated frequency offset All BW, +/-25% of BW
between transmitter and receiver, no The tighter limit applies (see
sensitivity degradation, SF6 thru 12 below)
Maximum tolerated frequency offset SF = 12
between transmitter and receiver, no SF = 11
sensitivity degradation, SF10 thru 12 SF = 10
Min.
Typ
Max
-
-121
-
-
-125
-
-
-128
-
-
-131
-
-
-134
-
-
-136
-
-
-137
-
-
-118
-
-
-122
-
-
-125
-
-
-128
-
-
-131
-
-
-133
-
-
-134
-
-
-112
-
-
-118
-
-
-121
-
-
-124
-
-
-127
-
-
-129
-
-
-130
-
-
5
-
-
9.5
-
-
12
-
-
14.4
-
-
17
-
-
19.5
-
-6
-
60
-
-
72
-
-
66
-
+/-25%
-50
-
50
-100
-
100
-200
-
200
Unit
dBm
dBm
dBm
dBm
dBm
dBm
dBm
dBm
dBm
dBm
dBm
dBm
dBm
dBm
dBm
dBm
dBm
dBm
dBm
dBm
dBm
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
BW
ppm
ppm
ppm
Rev. 4 - March 2015
©2015 Semtech Corporation
Page 21
www.semtech.com
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