SX1236 WIRELESS & SENSING DATASHEET SX1236 - 137 MHz to 1020 MHz Low Power Bi-Band Transceiver GENERAL DESCRIPTION KEY PRODUCT FEATURES The SX1236 is a fully integrated ISM band transceiver 143 dB maximum link budget capable of bi-band operation in most un-licensed bands in +20 dBm - 100 mW constant RF output vs. V supply the sub-GHz space with a minimum of external components. It offers a combination of high link budget and +14 dBm high efficiency PA low current consumption in all operating modes. The 143 dB Programmable bit rate up to 300 kbps link budget is achieved by a low noise CMOS receiver front High sensitivity: down to -123 dBm end and up to +20 dBm of transmit output power. A set of internal power amplifiers are provided permitting either fully Bullet-proof front end: IIP3 = -11 dBm regulated - for constant RF performance, or direct supply Excellent blocking immunity connection - for optimal efficiency. This makes SX1236 ideal for either M2M applications powered by alkaline battery Low RX current of 10.8 mA, 200 nA register retention chemistries or long battery life metering applications using Fully integrated synthesizer with a resolution of 61 Hz Lithium battery chemistries. FSK, GFSK, MSK, GMSK and OOK modulation The Low-IF architecture of the SX1236 sees fast transceiver start times and demodulation predicated towards low Built-in bit synchronizer for clock recovery modulation index and gaussian filtered spectrally efficient Preamble detection modulation formats. 127 dB Dynamic Range RSSI This device also support high performance (G)FSK modes for systems including WMBus, IEEE802.15.4g. The SX1236 Ultra-fast AFC delivers exceptional phase noise, selectivity, receiver Packet engine up to 256 bytes with CRC linearity and IIP3 for significantly lower current consumption Built-in temperature sensor and low battery indicator than competing devices. ORDERING INFORMATION APPLICATIONS Automated Meter Reading. Part Number Delivery MOQ / Multiple Home and Building Automation. SX1236IMLTRT T&R 3000 pieces Wireless Alarm and Security Systems. Industrial Monitoring and Control QFN 28 Package - Operating Range -40 +85C Long range Irrigation Systems Pb-free, Halogen free, RoHS/WEEE compliant product Rev. 1. - December 2013 Page 1 www.semtech.com 2013 Semtech CorporationSX1236 WIRELESS & SENSING DATASHEET Table of contents Section Page 1. General Description ................................................................................................................................................. 8 1.1. Simplified Block Diagram ................................................................................................................................. 8 1.2. Pin Diagram .....................................................................................................................................................9 1.3. Pin Description ...............................................................................................................................................10 1.4. Package Marking ...........................................................................................................................................11 2. Electrical Characteristics ....................................................................................................................................... 12 2.1. ESD Notice .................................................................................................................................................... 12 2.2. Absolute Maximum Ratings ........................................................................................................................... 12 2.3. Operating Range............................................................................................................................................ 12 2.4. Thermal Properties ........................................................................................................................................ 12 2.5. Chip Specification ..........................................................................................................................................13 2.5.1. Power Consumption.................................................................................................................................. 13 2.5.2. Frequency Synthesis................................................................................................................................. 13 2.5.3. FSK/OOK Mode Receiver .........................................................................................................................15 2.5.4. FSK/OOK Mode Transmitter ..................................................................................................................... 16 2.5.5. Digital Specification ...................................................................................................................................18 3. SX1236 Features................................................................................................................................................... 19 4. SX1236 Digital Electronics .................................................................................................................................... 21 4.1. FSK/OOK Modem .......................................................................................................................................... 21 4.1.1. Bit Rate Setting ......................................................................................................................................... 21 4.1.2. FSK/OOK Transmission............................................................................................................................ 22 4.1.3. FSK/OOK Reception ................................................................................................................................. 23 4.1.4. Operating Modes in FSK/OOK Mode........................................................................................................ 28 4.1.5. Startup Times ............................................................................................................................................29 4.1.6. Receiver Startup Options .......................................................................................................................... 32 4.1.7. Receiver Restart Methods......................................................................................................................... 33 4.1.8. Top Level Sequencer ................................................................................................................................ 34 4.1.9. Data Processing in FSK/OOK Mode ......................................................................................................... 39 4.1.10. FIFO ........................................................................................................................................................40 4.1.11. Digital IO Pins Mapping ...........................................................................................................................43 4.1.12. Continuous Mode ....................................................................................................................................44 4.1.13. Packet Mode ........................................................................................................................................... 45 4.1.14. io-homecontrol Compatibility Mode ...................................................................................................... 53 4.2. SPI Interface ..................................................................................................................................................54 5. SX1236 Analog & RF Frontend Electronics........................................................................................................... 55 5.1. Power Supply Strategy .................................................................................................................................. 55 5.2. Low Battery Detector ..................................................................................................................................... 55 5.3. Frequency Synthesis ..................................................................................................................................... 55 5.3.1. Crystal Oscillator ....................................................................................................................................... 55 Rev. 1. - December 2013 Page 2 www.semtech.com 2013 Semtech Corporation