Data Sheet

Page 79
RFM95/96/97/98
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WIRELESS & SENSING PRELIMINARY DATASHEET
5.4.3. High Power +20 dBm Operation
The RFM95/96/97/98 have a high power +20 dBm capability on PA_BOOST pin, with the following settings:
Table 78 High Power Settings
Register Address
Value for
High Power
Default value
PA_HF/LF or
+17dBm
Description
RegPaDac
0x4d 0x87 0x84
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
Tab le 7 9 an d Ta b le 8 0.
Table 79 Operating Range, +20dBm Operation
Symbol Description Min Max Unit
DC_20dBm Duty Cycle of transmission at +20 dBm output - 1 %
VSWR_20dBm Maximum VSWR at antenna port, +20 dBm output - 3:1 -
Table 80 Operating Range, +20dBm Operation
Symbol Description Min Max Unit
VDDop_20dBm Supply voltage, +20 dBm output 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 Hope RF representative.