SX1231
DATASHEET
Page
ADVANCED COMMUNICATIONS & SENSING
Index of Tables
Table 1. SX1231 Pinouts .............................................................................................................................................. 10
Table 2. Absolute Maximum Ratings ............................................................................................................................ 11
Table 3. Operating Range ............................................................................................................................................ 11
Table 4. Power Consumption Specification .................................................................................................................. 12
Table 5. Frequency Synthesizer Specification .............................................................................................................. 12
Table 6. Receiver Specification .................................................................................................................................... 13
Table 7. Transmitter Specification ................................................................................................................................ 14
Table 8. Digital Specification ........................................................................................................................................ 15
Table 9. Bit Rate Examples .......................................................................................................................................... 20
Table 10. Power Amplifier Mode Selection Truth Table ............................................................................................... 21
Table 11. LNA Gain Settings ........................................................................................................................................ 22
Table 12. Receiver Performance Summary .................................................................................................................. 24
Table 13. Available RxBw Settings ............................................................................................................................... 25
Table 14. Basic Transceiver Modes ............................................................................................................................. 33
Table 15. Range of Durations in Listen Mode .............................................................................................................. 37
Table 16. Signal Acceptance Criteria in Listen Mode ................................................................................................... 38
Table 17. End of Listen Cycle Actions .......................................................................................................................... 38
Table 18. Status of FIFO when Switching Between Different Modes of the Chip ......................................................... 44
Table 19. DIO Mapping, Continuous Mode .................................................................................................................. 46
Table 20. DIO Mapping, Packet Mode ......................................................................................................................... 46
Table 21. Registers Summary ...................................................................................................................................... 57
Table 22. Common Configuration Registers ................................................................................................................. 60
Table 23. Transmitter Registers ................................................................................................................................... 63
Table 24. Receiver Registers ....................................................................................................................................... 64
Table 25. IRQ and Pin Mapping Registers ................................................................................................................... 67
Table 26. Packet Engine Registers .............................................................................................................................. 69
Table 27. Temperature Sensor Registers ..................................................................................................................... 72
Table 28. Test Registers .............................................................................................................................................. 72
Table 29. Crystal Specification ..................................................................................................................................... 73
Table 30. Revision History ............................................................................................................................................ 77
Rev 2 - Nov 2009
Page 6
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