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RF96 Datasheet(PDF) 7 Page - HOPE Microelectronics CO., Ltd. |
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RF96 Datasheet(HTML) 7 Page - HOPE Microelectronics CO., Ltd. |
7 / 121 page Page 7 Tel: +86-755-82973805 Fax: +86-755-82973550 E-mail: sales@hoperf.com http://www.hoperf.com RF96/97/98 Section Page Figure 1. Block Diagram ...............................................................................................................................................9 Figure 2. Pin Diagrams ...............................................................................................................................................10 Figure 3. RF96/97/98 Block Schematic Diagram ........................................................................................................20 Figure 4. LoRaTM Modem Connectivity ......................................................................................................................23 Figure 5. Interrupts generated in the case of successful frequency hopping communication. .....................................28 Figure 6. Channel activity detection (CAD) time as a function of spreading factor ......................................................39 Figure 7. Consumption Profile of the LoRa CAD Process ............................................................................................40 Figure 8. OOK Peak Demodulator Description .............................................................................................................44 Figure 9. Floor Threshold Optimization ........................................................................................................................45 Figure 10. Bit Synchronizer Description .......................................................................................................................46 Figure 11. FEI Process .................................................................................................................................................47 Figure 12. Startup Process ...........................................................................................................................................50 Figure 13. Time to Rssi Sample ...................................................................................................................................52 Figure 14. Tx to Rx Turnaround ...................................................................................................................................52 Figure 15. Rx to Tx Turnaround ...................................................................................................................................52 Figure 16. Receiver Hopping ........................................................................................................................................53 Figure 17. Transmitter Hopping ....................................................................................................................................53 Figure 18. Timer1 and Timer2 Mechanism ...................................................................................................................57 Figure 19. Sequencer State Machine ...........................................................................................................................59 Figure 20. RF96/97/98 Data Processing Conceptual View ...........................................................................................60 Figure 21. FIFO and Shift Register (SR) ......................................................................................................................61 Figure 22. FifoLevel IRQ Source Behavior ...................................................................................................................62 Figure 23. Sync Word Recognition ...............................................................................................................................63 Figure 24. Continuous Mode Conceptual View ............................................................................................................65 Figure 25. Tx Processing in Continuous Mode .............................................................................................................65 Figure 26. Rx Processing in Continuous Mode ............................................................................................................66 Figure 27. Packet Mode Conceptual View ...................................................................................................................67 Figure 28. Fixed Length Packet Format .......................................................................................................................68 Figure 29. Variable Length Packet Format ...................................................................................................................69 Figure 30. Unlimited Length Packet Format .................................................................................................................69 Figure 31. Manchester Encoding/Decoding .................................................................................................................73 Figure 32. Data Whitening Polynomial .........................................................................................................................74 Figure 33. SPI Timing Diagram (single access) ...........................................................................................................75 Figure 34. TCXO Connection .......................................................................................................................................76 Figure 35. RF Front-end Architecture Shows the Internal PA Configuration. ...............................................................78 Figure 36. Temperature Sensor Response ..................................................................................................................83 Figure 37. POR Timing Diagram ................................................................................................................................108 Figure 38. Manual Reset Timing Diagram ..................................................................................................................109 Figure 39. Listen Mode: Principle ...............................................................................................................................109 |
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