RF65 Datasheet, PDF (59/72 Pages) List of Unclassifed Manufacturers – Low Power Integrated UHF Receiver With -120dBm High Sensitivity

ADVANCED COMMUNICATIONS & SENSING
RF65
DATASHEET
RegOokPeak
(0x1B)
7-6 OokThreshType
5-3 OokPeakTheshStep
2-0 OokPeakThreshDec
RegOokAvg
(0x1C)
7-6 OokAverageThreshFilt
RegOokFix
(0x1D)
RegAfcFei
(0x1E)
5-0 -
7-0 OokFixedThresh
7-
6 FeiDone
5 FeiStart
4 AfcDone
3 AfcAutoclearOn
RegAfcMsb
(0x1F)
RegAfcLsb
(0x20)
RegFeiMsb
(0x21)
RegFeiLsb
(0x22)
RegRssiConfig
(0x23)
RegRssiValue
(0x24)
2 AfcAutoOn
1 AfcClear
0 AfcStart
7-0 AfcValue(15:8)
7-0 AfcValue(7:0)
7-0 FeiValue(15:8)
7-0 FeiValue(7:0)
7-2 -
1 RssiDone
0 RssiStart
7-0 RssiValue
rw
01 Selects type of threshold in the OOK data slicer:
00→ fixed
10→ average
01→ peak
11→ reserved
rw
000 Size of each decrement of the RSSI threshold in the OOK
demodulator:
000→ 0.5 dB
001→ 1.0 dB
010→ 1.5 dB
011→ 2.0 dB
100→ 3.0 dB
101→ 4.0 dB
110→ 5.0 dB
111→ 6.0 dB
rw
000 Period of decrement of the RSSI threshold in the OOK
demodulator:
000→ once per chip
001→ once every 2 chips
010→ once every 4 chips 011→ once every 8 chips
100→ twice in each chip 101→ 4 times in each chip
110→ 8 times in each chip 111→ 16 times in each chip
rw
10 Filter coefficients in average mode of the OOK
demodulator:
00→ f_C ≈ chip rate / 32.π
01→ f_C ≈ chip rate / 8.π
10→ f_C ≈ chip rate / 4.π
11→ f_C ≈ chip rate / 2.π
r 000000 unused
rw
0110 Fixed threshold value (in dB) in the OOK demodulator.
(6dB) Used when OokThresType = 00
r
0 unused
r
0 0→ FEI is on-going
1→ FEI finished
w
0 Triggers a FEI measurement when set. Always reads 0.
r
1 0→ AFC is on-going
1→ AFC has finished
rw
0 Only valid if AfcAutoOn is set
0→ AFC register is not cleared before a new AFC phase
1→ AFC register is cleared before a new AFC phase
rw
0 0→ AFC is performed each time AfcStart is set
1→ AFC is performed each time Rx mode is entered
w
0 Clears the AfcValue if set in Rx mode. Always reads 0
w
0 Triggers an AFC when set. Always reads 0.
r
0x00 MSB of the AfcValue, 2‟s complement format
r
0x00 LSB of the AfcValue, 2‟s complement format
Frequency correction = AfcValue x Fstep
r
- MSB of the measured frequency offset, 2‟s complement
r
- LSB of the measured frequency offset, 2‟s complement
Frequency error = FeiValue x Fstep
r 000000 unused
r
1 0→ RSSI is on-going
1→ RSSI sampling is finished, result available
w
0 Trigger a RSSI measurement when set. Always reads 0.
r
0xFF Absolute value of the RSSI in dBm, 0.5dB steps.
RSSI = -RssiValue/2 [dBm]
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