Data Sheet

Page 79
RFM95/96/97/98
Tel: [phone] Fax: [phone] E-mail: [e-mail] http://www.hoperf.com
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
Table 79 and Table 80.
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.