SX1276 View Datasheet(PDF) - Semtech Corporation
Part Name
Description
MFG CO.
'SX1276' PDF : 132 Pages View PDF
SX1276/77/78/79
WIRELESS, SENSING & TIMING
DATASHEET
5.4.3. High Power +20 dBm Operation
The SX1276/77/78/79 have a high power +20 dBm capability on PA_BOOST pin, with the following settings:
Table 34 High Power Settings
Register
RegPaDac
Address
0x4d
Value for
High Power
0x87
Default value
PA_HF/LF or
+17dBm
0x84
Description
Set Pmax to +20dBm for PA_HP
Notes - High Power settings must be turned off when using PA_LF or PA_HF
- The Over Current Protection limit should be adapted to the actual power level, in RegOcp
Specific Absolute Maximum Ratings and Operating Range restrictions apply to the +20 dBm operation. They are listed in
Table 35 and Table 36.
Table 35 Operating Range, +20dBm Operation
Symbol
Description
DC_20dBm
VSWR_20dBm
Duty Cycle of transmission at +20 dBm output
Maximum VSWR at antenna port, +20 dBm output
Min
Max
Unit
-
1
%
-
3:1
-
Table 36 Operating Range, +20dBm Operation
Symbol
Description
VDDop_20dBm Supply voltage, +20 dBm output
Min
Max
Unit
2.4
3.7
V
The duty cycle of transmission at +20 dBm is limited to 1%, with a maximum VSWR of 3:1 at antenna port, over the
standard operating range [-40;+85°C]. For any other operating condition, contact your Semtech representative.
Rev. 4 - March 2015
©2015 Semtech Corporation
Page 84
www.semtech.com
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