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RFM95 Folha de dados(PDF) 90 Page - HOPE Microelectronics CO., Ltd.

Nome de Peças RFM95
Descrição Electrónicos  Low Power Long Range Transceiver Module
Download  121 Pages
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Fabricante Electrônico  HOPE [HOPE Microelectronics CO., Ltd.]
Página de início  https://www.hoperf.com/
Logo HOPE - HOPE Microelectronics CO., Ltd.

RFM95 Folha de dados(HTML) 90 Page - HOPE Microelectronics CO., Ltd.

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Page 90
RFM95/96/97/98(W)
Tel: + 86-755-82973805
Fax: + 86-755-82973550
E-mail: sales@hoperf.com http:/ / www.hoperf.com
WIRELESS & SENSING
PRELIMINARY
DATASHEET
Name
(Address)
Bits
Variable Name
Mode
Default
value
FSK/OOK Description
7
RestartRxOnCollision
rw
0x00
Turns on the mechanism restarting the receiver automatically if it
gets saturated or a packet collision is detected
0
No automatic Restart
1
Automatic restart On
6
RestartRxWithoutPllLock
wt
0x00
Triggers a manual Restart of the Receiver chain when set to 1.
Use this bit when there is no frequency change,
RestartRxWithPllLock otherwise.
5
RestartRxWithPllLock
wt
0x00
Triggers a manual Restart of the Receiver chain when set to 1.
Use this bit when there is a frequency change, requiring some
time for the PLL to re-lock.
4
AfcAutoOn
rw
0x00
0
No AFC performed at receiver startup
1
AFC is performed at each receiver startup
3
AgcAutoOn
rw
0x01
0
LNA gain forced by the LnaGain Setting
1
LNA gain is controlled by the AGC
RegRxConfig
(0x0d)
2-0
RxTrigger
rw
0x06
*
Selects the event triggering AGC and/or AFC at receiver startup.
See Table 18 for a description.
7-3
RssiOffset
rw
0x00
Signed RSSI offset, to compensate for the possible losses/gains
in the front-end (LNA, SAW filter...)
1dB / LSB, 2’s complement format
RegRssiConfig
(0x0e)
2-0
RssiSmoothing
rw
0x02
Defines the number of samples taken to average the RSSI result:
000
2 samples used
001
4 samples used
010
8 samples used
011
16 samples used
100
32 samples used
101
64 samples used
110
128 samples used
111
256 samples used
RegRssiCollision
(0x0f)
7-0
RssiCollisionThreshold
rw
0x0a
Sets the threshold used to consider that an interferer is detected,
witnessing a packet collision. 1dB/LSB (only RSSI increase)
Default: 10dB
RegRssiThresh
(0x10)
7-0
RssiThreshold
rw
0xff
RSSI trigger level for the Rssi interrupt:
- RssiThreshold / 2 [dBm]
RegRssiValue
(0x11)
7-0
RssiValue
r
-
Absolute value of the RSSI in dBm, 0.5dB steps.
RSSI = - RssiValue/2 [dBm]
7
unused
r
-
unused
6-5
reserved
rw
0x00
reserved
4-3
RxBwMant
rw
0x02
Channel filter bandwidth control:
00
RxBwMant = 16
10
RxBwMant = 24
01
RxBwMant = 20
11
reserved
RegRxBw
(0x12)
2-0
RxBwExp
rw
0x05
Channel filter bandwidth control:
FSK Mode:
RxBw = ------------------------
F
----
X
----
O
----
S
----
C
-------------------------
RxBwMant × 2
RxBwExp + 2


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