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RFM95 Datasheet(HTML) 3 Page - HOPE Microelectronics CO., Ltd.

Part No. RFM95
Description  Low Power Long Range Transceiver Module
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Maker  HOPE [HOPE Microelectronics CO., Ltd.]
Homepage  https://www.hoperf.com/
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RFM95 Datasheet(HTML) 3 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
4.2.13. Packet Mode ........................................................................................................................................... 66
4.2.14. io-homecontrol® Compatibility Mode ...................................................................................................... 74
4.3.
SPI Interface .................................................................................................................................................. 75
5.
RFM95/96/97/98(W) Analog & RF Frontend Electronics........................................................................................ 76
5.1.
Power Supply Strategy .................................................................................................................................. 76
5.2.
Low Battery Detector ..................................................................................................................................... 76
5.3.
Frequency Synthesis ..................................................................................................................................... 76
5.3.1. Crystal Oscillator ....................................................................................................................................... 76
5.3.2. CLKOUT Output ........................................................................................................................................ 77
5.3.3. PLL ............................................................................................................................................................ 77
5.3.4. RC Oscillator ............................................................................................................................................. 77
5.4.
Transmitter Description ...............................................................................................................................78
5.4.1. Architecture Description ............................................................................................................................ 78
5.4.2. RF Power Amplifiers.................................................................................................................................. 78
5.4.3. High Power +20 dBm Operation ............................................................................................................... 79
5.4.4. Over Current Protection .........................................................................................................................80
5.5.
Receiver Description...................................................................................................................................... 80
5.5.1. Overview ................................................................................................................................................... 80
5.5.2. Receiver Enabled and Receiver Active States.......................................................................................... 80
5.5.3. Automatic Gain Control In FSK/OOK Mode .............................................................................................. 80
5.5.4. RSSI in FSK/OOK Mode ........................................................................................................................... 81
5.5.5. RSSI in LoRaTM Mode ............................................................................................................................. 82
5.5.6. Channel Filter ............................................................................................................................................ 82
5.5.7. Temperature Measurement....................................................................................................................... 83
6.
Description of the Registers.................................................................................................................................... 84
6.1.
Register Table Summary ............................................................................................................................... 84
6.2.
FSK/OOK Mode Register Map....................................................................................................................... 87
6.3.
Band Specific Additional Registers .............................................................................................................. 100
6.4.
LoRaTM Mode Register Map....................................................................................................................... 102
7.
Application Information ........................................................................................................................................ 108
7.1.
Crystal Resonator Specification................................................................................................................... 108
7.2.
Reset of the Chip ......................................................................................................................................... 108
7.2.1. POR......................................................................................................................................................... 108
7.2.2. Manual Reset .......................................................................................................................................109
7.3.
Top Sequencer: Listen Mode Examples ...................................................................................................... 109
7.3.1. Wake on Preamble Interrupt ................................................................................................................... 109
7.3.2. Wake on SyncAddress Interrupt ...........................................................................................................112
7.4.
Top Sequencer: Beacon Mode .................................................................................................................115
7.4.1. Timing diagram........................................................................................................................................ 115


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