RFM92 Datasheet, PDF (2/126 Pages) List of Unclassifed Manufacturers – Low Power Long Range Transceiver Module

WIRELESS & SENSING
Table of contents
Section
RFM92W/93W V3.0
DATASHEET
Page
1. General Description ............................................................................................................................................... 10
1.1. Simplified Block Diagram ............................................................................................................................... 10
1.2. Product Versions .........................................................................................................................................11
1.3. Pin Diagram ................................................................................................................................................... 11
1.4. Pin Description ............................................................................................................................................12
1.5. Package Marking ........................................................................................................................................13
2. Electrical Characteristics ....................................................................................................................................... 14
2.1. ESD Notice .................................................................................................................................................... 14
2.2. Absolute Maximum Ratings ........................................................................................................................... 14
2.3. Operating Range............................................................................................................................................ 14
2.4. Thermal Properties ........................................................................................................................................ 14
2.5. Chip Specification .......................................................................................................................................15
2.5.1. Power Consumption .................................................................................................................................. 15
2.5.2. Frequency Synthesis................................................................................................................................. 15
2.5.3. FSK/OOK Mode Receiver ......................................................................................................................... 16
2.5.4. FSK/OOK Mode Transmitter ..................................................................................................................... 17
2.5.5. Electrical specification for LoRa^TM modulation ......................................................................................... 18
2.5.6. Digital Specification ................................................................................................................................... 20
3. RFM92W/93W Features......................................................................................................................................... 21
3.1. LoRa^TM Modem ............................................................................................................................................. 22
3.2. FSK/OOK Modem .......................................................................................................................................... 22
4. RFM92W/93W Digital Electronics ......................................................................................................................... 23
4.1. The LoRa^TM Modem ...................................................................................................................................... 23
4.1.1. Link Design Using the LoRa^TM Modem ..................................................................................................24
4.1.1.1. Overview ........................................................................................................................................... 24
4.1.1.2. Spreading Factor............................................................................................................................... 25
4.1.1.3. Coding Rate ...................................................................................................................................... 25
4.1.1.4. Signal Bandwidth .............................................................................................................................. 26
4.1.1.5. LoRa^TM Transmission Parameter Relationship................................................................................. 26
4.1.1.6. LoRa^TM Packet Structure ...............................................................................................................27
4.1.1.7. Time on air ........................................................................................................................................ 28
4.1.1.8. Frequency Hopping with LoRa^TM...................................................................................................... 29
4.1.2. LoRa^TM Digital Interface .........................................................................................................................31
4.1.2.1. LoRa^TM Configuration Registers ....................................................................................................... 31
4.1.2.2. Status Registers ................................................................................................................................ 31
4.1.2.3. LoRa^TM Mode FIFO Data Buffer ....................................................................................................... 31
4.1.3. Operation of the LoRa^TM Modem .............................................................................................................. 33
4.1.3.1. Operating Mode Control .................................................................................................................... 33
4.1.4. Frequency Settings ................................................................................................................................34
4.1.5. LoRa^TM Modem State Machine Sequences ...........................................................................................35
4.1.5.1. Digital IO Pin Mapping ...................................................................................................................... 42
4.2. FSK/OOK Modem .......................................................................................................................................... 43
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