RFM42 Datasheet, PDF (93/110 Pages) –

RFM42/43
Register 6Dh. TX Power
Bit
D7
Name
Type
D6
D5
Reserved
R
D4
D3
D2
D1
D0
lna_sw
txpow[2:0]
R/W
R/W
Reset value = xxxx1000
Bit
Name
7:4
Reserved
3
lna_sw
2:0
txpow[2:0]
Function
Reserved.
LNA Switch Controller.
If set, lna_sw control from the digital will go high during TX modes, and low
during other times. If reset, the digital control signal is low at all times.
TX Output Power.
The output power is configurable in ~3 dBm steps.
93
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