RF96 datasheet(91/121 Pages) HOPE

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Page 91

RF96/97/98

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WIRELESS & SENSING

PRELIMINARY

DATASHEET

Name

(Address)

Bits

Variable Name

Mode

Default

value

FSK/OOK Description

RegAfcBw

(0x13)

7-5

reserved

0x00

reserved

4-3

RxBwMantAfc

0x01

RxBwMant parameter used during the AFC

2-0

RxBwExpAfc

0x03

RxBwExp parameter used during the AFC

RegOokPeak

(0x14)

7-6

reserved

0x00

reserved

BitSyncOn

0x01

Enables the Bit Synchronizer.

0  Bit Sync disabled (not possible in Packet mode)

1  Bit Sync enabled

4-3

OokThreshType

0x01

Selects the type of threshold in the OOK data slicer:

00  fixed threshold

10  average mode

01  peak mode (default)

11  reserved

2-0

OokPeakTheshStep

0x00

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

RegOokFix

(0x15)

7-0

OokFixedThreshold

0x0C

Fixed threshold for the Data Slicer in OOK mode

Floor threshold for the Data Slicer in OOK when Peak mode is

used

RegOokAvg

(0x16)

7-5

OokPeakThreshDec

0x00

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

reserved

0x01

reserved

3-2

OokAverageOffset

0x00

Static offset added to the threshold in average mode in order to

reduce glitching activity (OOK only):

00  0.0 dB

10  4.0 dB

01  2.0 dB

11  6.0 dB

1-0

OokAverageThreshFilt

0x02

Filter coefficients in average mode of the OOK demodulator:

00  fC ≈ chip rate / 32.π

01  fC ≈ chip rate / 8.π

10  fC ≈ chip rate / 4.π

11 fC ≈ chip rate / 2.π

RegRes17

RegRes19

7-0

reserved

0x47

0x32

0x3E

reserved. Keep the Reset values.

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