SX1231-31SKB915 Semtech, SX1231-31SKB915 Datasheet - Page 3

• Manufacturer Part Number: SX1231-31SKB915
• Description: TVS
• Manufacturer: Semtech

Specifications of SX1231-31SKB915

• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

4.
5.
Rev 3 - April 2010
ADVANCED COMMUNICATIONS & SENSING
4.1.
4.2.
4.3.
4.4.
5.1.
5.2.
5.3.
5.4.
5.5.
Operating Modes .................................................................................................................................................. 33
Data Processing.................................................................................................................................................... 41
3.5.9. Cordic ....................................................................................................................................................... 26
3.5.10. FSK Demodulator .................................................................................................................................... 27
3.5.11. OOK Demodulator .................................................................................................................................. 27
3.5.12. Bit Synchronizer ..................................................................................................................................... 29
3.5.13. Frequency Error Indicator....................................................................................................................... 29
3.5.14. Automatic Frequency Correction ............................................................................................................ 30
3.5.15. Optimized Setup for Low Modulation Index Systems ............................................................................. 31
3.5.16. Temperature Sensor ............................................................................................................................... 32
3.5.17. Timeout Function.................................................................................................................................... 32
4.2.1. Transmitter Startup Time........................................................................................................................... 34
4.2.2. Tx Start Procedure ................................................................................................................................... 34
4.2.3. Receiver Startup Time.............................................................................................................................. 34
4.2.4. Rx Start Procedure ................................................................................................................................... 36
4.2.5. Optimized Frequency Hopping Sequences .............................................................................................. 36
4.3.1. Timings ..................................................................................................................................................... 37
4.3.2. Criteria ...................................................................................................................................................... 38
4.3.3. End of Cycle Actions ................................................................................................................................ 38
4.3.4. RC Timer Accuracy .................................................................................................................................. 39
5.1.1. Block Diagram .......................................................................................................................................... 41
5.1.2. Data Operation Modes ............................................................................................................................. 41
5.2.1. SPI Interface............................................................................................................................................. 42
5.2.2. FIFO ......................................................................................................................................................... 43
5.2.3. Sync Word Recognition ............................................................................................................................ 44
5.2.4. Packet Handler ......................................................................................................................................... 45
5.2.5. Control ...................................................................................................................................................... 45
5.3.1. DIO Pins Mapping in Continuous Mode ................................................................................................... 46
5.3.2. DIO Pins Mapping in Packet Mode .......................................................................................................... 46
5.4.1. General Description.................................................................................................................................. 47
5.4.2. Tx Processing........................................................................................................................................... 47
5.4.3. Rx Processing .......................................................................................................................................... 48
5.5.1. General Description.................................................................................................................................. 48
Basic Modes.................................................................................................................................................. 33
Listen mode................................................................................................................................................... 37
AutoModes .................................................................................................................................................... 40
Overview ....................................................................................................................................................... 41
Continuous Mode .......................................................................................................................................... 47
Packet Mode ................................................................................................................................................. 48
Automatic Sequencer and Wake-Up Times .................................................................................................. 33
Control Block Description.............................................................................................................................. 42
Digital IO Pins Mapping................................................................................................................................. 45
Page 3
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