RFM69W Datasheet, PDF (67/78 Pages) List of Unclassifed Manufacturers – ISM TRANSCEIVER MODULE

ADVANCED COMMUNICATIONS & SENSING
RFM69W
DATASHEET
6.4. Receiver Registers
Table 26 Receiver Registers
Name
(Address)
Reserved14
(0x14)
Reserved15
(0x15)
Reserved16
(0x16)
Reserved17
(0x17)
RegLna
(0x18)
Bits Variable Name
7-0 -
7-0 -
7-0 -
7-0 -
7 LnaZin
6-
5-3 LnaCurrentGain
2-0 LnaGainSelect
RegRxBw
(0x19)
7-5 DccFreq
4-3 RxBwMant
2-0 RxBwExp
RegAfcBw
(0x1A)
7-5 DccFreqAfc
4-3 RxBwMantAfc
2-0 RxBwExpAfc
Mode
Default
Value
Description
r
0x40 unused
r
0xB0 unused
r
0x7B unused
r
0x9B unused
rw
1 LNA’s input impedance
* 0 → 50 ohms
1 → 200 ohms
r
0 unused
r
001 Current LNA gain, set either manually, or by the AGC
rw
000 LNA gain setting:
000 → gain set by the internal AGC loop
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
rw
010 Cut-off frequency of the DC offset canceller (DCC):
*
----- -----------------
~4% of the RxBw by default
rw
10 Channel filter bandwidth control:
* 00 → RxBwMant = 16
10 → RxBwMant = 24
01 → RxBwMant = 20
11 → reserved
rw
101 Channel filter bandwidth control:
* FSK Mode:
RxBw
=
------------------------^F----^X----^O----^S----^C-------------------------
RxBwMant ∗2^{RxBwExp + 2}
OOK Mode:
RxBw
=
------------------------^F----^X----^O----^S----^C-------------------------
RxBwMant ∗ 2^{RxBwExp + 3}
See Table 14 for tabulated values
rw
100 DccFreq parameter used during the AFC
rw
01 RxBwMant parameter used during the AFC
rw 011 * RxBwExp parameter used during the AFC
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