RFM68CW
Table of contents
Section
Page
1.
Circuit Description....................................................................................................................................................
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3
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7
1.1. General Description .........................................................................................................................................
1.2. Block Diagram..................................................................................................................................................
1.3. Pin Description,............................................................................................................................................
Electrical Characteristics .........................................................................................................................................
2.1. ESD Notice ......................................................................................................................................................
2.2. Absolute Maximum Ratings .............................................................................................................................
2.3. Operating Range..............................................................................................................................................
2.4. Electrical Specifications.......................................................................................................................................
Timing Characteristics .............................................................................................................................................
2.
3.
4.
Application Modes of the RFM68CW.........................................................................................................................
8
4.1. Transmitter Modes...........................................................................................................................................
4.2. Mode Selection Flowchart................................................................................................................................
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9
4.3. Application Mode: Power & Go ....................................................................................................................... 10
4.4. Application Mode: Advanced ......................................................................................................................... 10
4.4.1. Advanced Mode: Configuration............................................................................................................... 10
4.4.2. Frequency Hopping Spread Spectrum.................................................................................................... 10
4.5. Frequency Band Coverage ............................................................................................................................ 11
4.6. Power Consumption.........................................................................................................................................11
RFM68CW Configuration.........................................................................................................................................12
5.1. TWI Access......................................................................................................................................................12
5.2. APPLICATION Configuration Parameters ..................................................................................................... 14
5.3. FREQUENCY Configuration Parameters ...................................................................................................... 14
5.4. Test Parameters (internal) ............................................................................................................................. 15
5.5. Status Parameters ......................................................................................................................................... 15
5.6. Recovery Command ....................................................................................................................................... 16
Application Information .......................................................................................................................................... 17
6.1. Reference Design .......................................................................................................................................... 17
6.2. NRESET Pin ................................................................................................................................................... 18
6.3. TX_READY Pin............................................................................................................................................... 18
6.4. Low Power Optimization ................................................................................................................................. 18
6.4.1. 2 Connections: CTRL, DATA................................................................................................................... 18
6.4.2. 3 Connections: CTRL, DATA, TX_READY.............................................................................................. 18
RFM68CW Packaging ..............................................................................................................................................19
7.1. S2 Package Outline Drawing ...........................................................................................................................19
Ordering Information………………………………………………………………………………………………………….20
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