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SX1233 Datasheet(PDF) 3 Page - Semtech Corporation |
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SX1233 Datasheet(HTML) 3 Page - Semtech Corporation |
3 / 97 page www.semtech.com Page 3 SX1232 WIRELESS & SENSING DATASHEET Rev 3 - August 2012 3.5.8. Frequency Error Indicator......................................................................................................................... 33 3.5.9. AFC .......................................................................................................................................................... 34 3.5.10. Preamble Detector ..................................................................................................................................35 3.5.11. Image Rejection Mixer............................................................................................................................ 35 3.5.12. Image and RSSI Calibration ................................................................................................................... 35 3.6. Temperature Measurement........................................................................................................................... 36 3.7. Timeout Function .......................................................................................................................................... 37 4. Operating Modes .................................................................................................................................................. 38 4.1. General Overview ......................................................................................................................................... 38 4.2. Startup Times................................................................................................................................................ 38 4.2.1. Transmitter Startup Time........................................................................................................................... 39 4.2.2. Receiver Startup Time.............................................................................................................................. 39 4.2.3. Time to RSSI Evaluation .......................................................................................................................... 40 4.2.4. Tx to Rx Turnaround Time ....................................................................................................................... 40 4.2.5. Rx to Tx .................................................................................................................................................... 40 4.2.6. Receiver Hopping, Rx to Rx ...................................................................................................................... 41 4.2.7. Tx to Tx .................................................................................................................................................... 41 4.3. Receiver Startup Options .............................................................................................................................. 42 4.4. Receiver Restarting Methods........................................................................................................................ 42 4.4.1. Restart Upon User Request ..................................................................................................................... 42 4.4.2. Automatic Restart after valid Packet Reception ........................................................................................ 43 4.4.3. Automatic Restart when Packet Collision is Detected.............................................................................. 43 4.5. Top Level Sequencer .................................................................................................................................... 44 4.5.1. Sequencer States..................................................................................................................................... 44 4.5.2. Sequencer Transitions ..............................................................................................................................45 4.5.3. Timers ...................................................................................................................................................... 46 4.5.4. Sequencer State Machine .........................................................................................................................47 5. Data Processing.................................................................................................................................................... 48 5.1. Overview ....................................................................................................................................................... 48 5.1.1. Block Diagram .......................................................................................................................................... 48 5.1.2. Data Operation Modes ............................................................................................................................. 48 5.2. Control Block Description.............................................................................................................................. 49 5.2.1. SPI Interface............................................................................................................................................. 49 5.2.2. FIFO ......................................................................................................................................................... 50 5.2.3. Sync Word Recognition ............................................................................................................................ 51 5.2.4. Packet Handler......................................................................................................................................... 52 5.2.5. Control...................................................................................................................................................... 52 5.3. Digital IO Pins Mapping................................................................................................................................. 53 5.4. Continuous Mode .......................................................................................................................................... 54 5.4.1. General Description.................................................................................................................................. 54 5.4.2. Tx Processing........................................................................................................................................... 54 5.4.3. Rx Processing .......................................................................................................................................... 55 |
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Similar Description - SX1233_12 |
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