AX5243 Advanced High Performance ASK and FSK Narrow-band Transceiver for 27 - 1050 MHz Range www.onsemi.com OVERVIEW The AX5243 is a true single chip ultralow power narrowband CMOS transceiver for use in licensed and unlicensed bands from 27 and 1050 MHz. The onchip transceiver consists of a fully integrated RF frontend with modulator, and demodulator. Base band data processing is implemented in an advanced and flexible QFN20 4x4, 0.5P CASE 485EE communication controller that enables user friendly communication via the SPI interface. ORDERING INFORMATION Features Advanced Multi channel Narrow band Single Chip UHF Device Type Qty Transceiver (FSK / MSK / 4FSK / GFSK / GMSK / ASK / AFSK / AX52431TA05 Tape & Reel 500 FM / PSK) AX52431TW30 Tape & Reel 3,000 LowPower RX 9.5 mA 868 MHz and 433 MHz 6.5 mA 169 Hz TX at 868 MHz Sensitivity with FEC 7.5 mA 0 dBm 137 dBm 0.1 kbps, 868 MHz, FSK 16 mA 10 dBm 122 dBm 5 kbps, 868 MHz, FSK 48 mA 16 dBm 111 dBm 50 kbps, 868 MHz, FSK 50 nA Deep Sleep Current High Selectivity Receiver with up to 45 dB Adjacent Channel Rejection 500 nA Powerdown Current with Low Frequency Duty Cycle Clock Running 0 dBm Maximum Input Power > 10% Datarate Error Tolerance Extended Supply Voltage Range Short Preamble Modes Allow the Receiver to Work 1.8 V 3.6 V Single Supply with as little as 16 Preamble Bits Fast State Switching Times High Sensitivity / High Selectivity Receiver 200 s TX RX Switching Time Data Rates from 0.1 kbps to 125 kbps 62 s RX TX Switching Time Optional Forward Error Correction (FEC) Sensitivity without FEC Transmitter 135 dBm 0.1 kbps, 868 MHz, FSK Datarates from 0.1 kbps to 125 kbps 126 dBm 1 kbps, 868 MHz, FSK High Efficiency, High Linearity Integrated Power 117 dBm 10 kbps, 868 MHz, FSK Amplifier 107 dBm 100 kbps, 868 MHz, FSK Maximum Output Power 105 dBm 125 kbps, 868 MHz, FSK 16 dBm 868 MHz 16 dBm 433 MHz 138 dBm 0.1 kbps, 868 MHz, PSK 16 dBm 169 MHz 130 dBm 1 kbps, 868 MHz, PSK Power Level Programmable in 0.5 dB Steps 120 dBm 10 kbps, 868 MHz, PSK GFSK Shaping with BT = 0.3 or BT = 0.5 109 dBm 100 kbps, 868 MHz, PSK Unrestricted Power Ramp Shaping 108 dBm 125 kbps, 868 MHz, PSK Semiconductor Components Industries, LLC, 2016 1 Publication Order Number: May, 2016 Rev. 3 AX5243/DAX5243 Frequency Generation Advanced Crystal Oscillator Configurable for Usage in 27 MHz 1050 MHz Bands Fast Startup and Lowest Power Steadystate XTAL Oscillator for a Wide Range of Crystals RF Carrier Frequency and FSK Deviation Integrated Crystal Tuning Capacitors Programmable in 1 Hz Steps Ultra Fast Settling RF Frequency Synthesizer for Possibility of Applying an External Clock Reference Lowpower Consumption (TCXO) Fully Integrated RF Frequency Synthesizer with VCO Miscellaneous Features Autoranging and Bandwidth Boost Modes for Fast Few External Components Locking SPI Microcontroller Interface Configurable for either Fully Integrated VCO, Internal VCO with External Inductor or Fully External VCO Extended Register Set Configurable for either Fully Integrated or External Fully Integrated Current/Voltage References Synthesizer Loop Filter for a Large Range of QFN20 4 mm x 4 mm Package Bandwidths Internal PoweronReset Channel Hopping up to 2000 hops/s Brownout Detection Automatic Frequency Control (AFC) 10 Bit 1 MS/s General Purpose ADC (GPADC) Flexible Antenna Interface Applications Integrated RX/TX Switching with Differential Antenna 27 1050 MHz Licensed and Unlicensed Radio Systems Pins Internet of Things Automatic Meter Reading (AMR) WakeuponRadio Security Applications 640 Hz or 10 kHz Lowest Power Wakeup Timer Building Automation Wakeup Time Interval Programmable between 98 s Wireless Networks and 102 s Messaging Paging Sophisticated Radio Controller Compatible with: Wireless MBus, POCSAG, FLEX, Fully Automatic Packet Reception and Transmission KNX, Sigfox, ZWave, enocean without Microcontroller Intervention Regulatory Regimes: EN 300 220 V2.3.1 including the Supports HDLC, Raw, Wireless MBus Frames and Narrowband 12.5 kHz, 20 kHz and 25 kHz Arbitrary Defined Frames Definitions EN 300 422 FCC Part 15.247 FCC Part Automatic Channel Noise Level Tracking 15.249 FCC Part 90 6.25 kHz, 12.5 kHz and 25 kHz s Resolution Timestamps for Exact Timing (eg. for Frequency Hopping Systems) 256 Byte Microprogrammable FIFO, optionally Supports Packet Sizes > 256 Bytes Three Matching Units for Preamble Byte, Syncword and Address Ability to store RSSI, Frequency Offset and Datarate Offset with the Packet Data Multiple Receiver Parameter Sets Allow the Use of more Aggressive Receiver Parameters during Preamble, dramatically Shortening the Required Preamble Length at no Sensitivity Degradation www.onsemi.com 2