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RFM95 Datasheet(HTML) 2 Page - HOPE Microelectronics CO., Ltd.

Part No. RFM95
Description  Low Power Long Range Transceiver Module
Download  121 Pages
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Maker  HOPE [HOPE Microelectronics CO., Ltd.]
Homepage  https://www.hoperf.com/
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RFM95 Datasheet(HTML) 2 Page - HOPE Microelectronics CO., Ltd.

 
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Tel: + 86-755-82973805
Fax: + 86-755-82973550
E-mail: sales@hoperf.com http:/ / www.hoperf.com
RFM95/96/97/98
W
Section
Page
1.
General Description ................................................................................................................................................. 9
1.1.
Simplified Block Diagram ................................................................................................................................. 9
1.2.
Product Versions .........................................................................................................................................10
1.3.
Pin Diagram ................................................................................................................................................... 10
1.4.
Pin Description............................................................................................................................................... 11
2.
Electrical Characteristics ....................................................................................................................................... 12
2.1.
ESD Notice .................................................................................................................................................... 12
2.2.
Absolute Maximum Ratings ........................................................................................................................... 12
2.3.
Operating Range............................................................................................................................................ 12
2.4.
Chip Specification .......................................................................................................................................13
2.4.1. Power Consumption .................................................................................................................................. 13
2.4.2. Frequency Synthesis................................................................................................................................. 13
2.4.3. FSK/OOK Mode Receiver ......................................................................................................................... 14
2.4.4. FSK/OOK Mode Transmitter ..................................................................................................................... 15
2.4.5. Electrical specification for LoraTM modulation.......................................................................................... 16
2.4.6. Digital Specification ................................................................................................................................... 19
3.
RFM95/96/97/98(W) Features................................................................................................................................ 20
3.1.
LoRaTM Modem ............................................................................................................................................. 21
3.2.
FSK/OOK Modem ........................................................................................................................................... 21
4.
RFM95/96/97/98(W) Digital Electronics ................................................................................................................. 22
4.1.
The LoRaTM Modem ..................................................................................................................................... 22
4.1.1. Link Design Using the LoRaTM Modem .................................................................................................23
4.1.2. LoRaTM Digital Interface ........................................................................................................................29
4.1.3. Operation of the LoRaTM Modem............................................................................................................. 31
4.1.4. Frequency Settings ................................................................................................................................32
4.1.5. LoRaTM Modem State Machine Sequences ...........................................................................................33
4.2.
FSK/OOK Modem .......................................................................................................................................... 41
4.2.1. Bit Rate Setting ......................................................................................................................................... 41
4.2.2. FSK/OOK Transmission ............................................................................................................................ 42
4.2.3. FSK/OOK Reception ................................................................................................................................. 43
4.2.4. Operating Modes in FSK/OOK Mode ........................................................................................................ 50
4.2.5. Startup Times ............................................................................................................................................ 50
4.2.6. Receiver Startup Options .......................................................................................................................... 53
4.2.7. Receiver Restart Methods......................................................................................................................... 54
4.2.8. Top Level Sequencer ................................................................................................................................ 55
4.2.9. Data Processing in FSK/OOK Mode ......................................................................................................... 60
4.2.10. FIFO .....................................................................................................................................................61
4.2.11. Digital IO Pins Mapping........................................................................................................................... 64
4.2.12. Continuous Mode .................................................................................................................................... 65


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