AX-SFJK, AX-SFJK-API Ultra-Low Power, AT Command / API Controlled, Sigfox Compliant Transceiver IC for Up-Link www.onsemi.com and Down-Link OVERVIEW Circuit Description 8 GPIO pins AXSFJK and AXSFJKAPI are ultralow power 2 GPIO pins with selectable voltage measure single chip solutions for a node on the Sigfox network with functionality, differential (1 V or 10 V range) or both up and downlink functionality. The AXSFJK chip single ended (1 V range) with 10 bit resolution is delivered fully ready for operation and contains all the 2 GPIO pins with selectable sigma delta DAC necessary firmware to transmit and receive data from the output functionality Sigfox network in Japan (SIGFOX RCZ3a region). It 2 GPIO pins with selectable output clock connects to the customer product using a logic level RS232 3 GPIO pins selectable as SPI master interface UART. AT commands are used to send frames and configure RX/TX switching Control radio parameters. The AXSFJKAPI variant is intended for customers Power Consumption wishing to write their own application software based on the Ultralow Power Consumption: AXSFLIB1GEVK library. Charge required to send a Sigfox OOB packet at 13 dBm output power: 0.28 C Features Deepsleep mode current: 100 nA Functionality and Ecosystem Sleep mode current: 1.8 A Sigfox uplink and downlink functionality controlled Standby mode current: 0.5 mA by AT commands or API Continuous radio RXmode at 922.2 MHz : The AXSFJK and AXSFJKAPI ICs are part of a 15 mA whole development and product ecosystem available Continuous radio TXmode at 923.2 MHz from ON Semiconductor for any Sigfox requirement. 45 mA 13 dBm Other parts of the ecosystem include Ready to go development kit High Performance Narrowband Sigfox RF Transceiver DVKSFJK API 1GEVK including a 2 year Receiver Sigfox subscription Carrier frequency 922.2 MHz Sigfox Ready certified reference design for the Datarate 600 bps FSK AXSFJK and AXSFJKAPI ICs Sensitivity 126 dBm 600 bps, 922.2 MHz, GFSK General Features 0 dBm maximum input power QFN40 5 mm x 7 mm package Transmitter Supply range 1.8 V* 3.6 V Carrier frequency 923.2 MHz 40C to 85C Datarate 100 bps PSK Temperature sensor High efficiency, high linearity integrated power amplifier Supply voltage measurements Maximum output power 13 dBm *The device is operational from 1.8 V to 3.6 V. However, a supply Applications voltage below 2.0 V is considered an extreme condition. Sigfox networks uplink and downlink. Details see Table 4. Semiconductor Components Industries, LLC, 2017 1 Publication Order Number: June, 2017 Rev. 3 AXSFJK/DAXSFJK, AXSFJKAPI BLOCK DIAGRAM AXSFJK / AXSFJKAPI CLKP CAL TCXO RF synthesis interface CLKN FILT ANTP1 PA Transmit Communication controller ANTP LNA Receive ANTN UARTRX UART UARTTX DAC GPIO 9:4,1:0 GPIO CPU ADC RADIO LED dedicated CPU LED status TX LED outputs RX LED TX EN RX EN Program memory (FLASH) power mode control RAM Sigfox identity (ID, PAC) Sigfox compliant application Figure 1. Functional Block Diagram of the AXSFJK / AXSFJKAPI www.onsemi.com 2 GND VDD IO VDD ANA VTCXO RESET N