RFM66W Datasheet, PDF (68/87 Pages) List of Unclassifed Manufacturers – 868 & 915MHz Ultra Low Power High Link Budget Integrated UHF Transceiver

WIRELESS & SENSING
RFM66W
DATASHEET
Name
(Address)
Bits
RegOcp
7-6
(0x0B)
5
4-0
RegLna
7-5
(0x0C)
4-2
1-0
Variable Name
unused
OcpOn
OcpTrim
LnaGain
-
LnaBoost
Mode
Default
value
Description
r 0x00 unused
rw 0x01 Enables overload current protection (OCP) for the PA:
0 → OCP disabled
1 → OCP enabled
rw 0x0b Trimming of OCP current:
I_max = 45+5*OcpTrim [mA] if OcpTrim <= 15 (120 mA) /
I_max = -30+10*OcpTrim [mA] if 15 < OcpTrim <= 27 (130 to
240 mA)
I_max = 240mA for higher settings
Default I_max = 100mA
Registers for the Receiver
rwx 0x01 LNA gain setting:
000 → reserved
001 → G1 = highest gain
010 → G2 = highest gain – 6 dB
011 → G3 = highest gain – 12 dB
100 → G4 = highest gain – 24 dB
101 → G5 = highest gain – 36 dB
110 → G6 = highest gain – 48 dB
111 → reserved
Note:
Reading this address always returns the current LNA gain
(which may be different from what had been previously
selected if AGC is enabled.
r 0x00 unused
rw 0x00 Improves the system Noise Figure at the expense of Rx
current consumption:
00 → Default setting, meeting the specification
11 → Improved sensitivity
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