AX-SFEU, AX-SFEU-API Ultra-Low Power, AT Command / API Controlled, Sigfox Compliant Transceiver IC for Up-Link www.onsemi.com and Down-Link OVERVIEW Circuit Description 10 GPIO pins AXSFEU and AXSFEUAPI are ultralow power 4 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 AXSFEU 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 Europe. It connects to the customer 2 GPIO pins with selectable output clock product using a logic level RS232 UART. AT commands are 3 GPIO pins selectable as SPI master interface used to send frames and configure radio parameters. Integrated RX/TX switching with differential The AXSFEUAPI variant is intended for customers antenna pins wishing to write their own application software based on the AXSFLIB1GEVK library. Power Consumption Ultralow Power Consumption: Features Charge required to send a Sigfox OOB packet at Functionality and Ecosystem 14 dBm output power: 0.28 C Sigfox uplink and downlink functionality controlled Deepsleep mode current: 100 nA by AT commands or API Sleep mode current: 1.3 A The AXSFEU and AXSFAPI ICs are part of a Standby mode current: 0.5 mA whole development and product ecosystem available Continuous radio RXmode at 869.525 MHz : from ON Semiconductor for any Sigfox requirement. 10 mA Other parts of the ecosystem include Continuous radio TXmode at 868.130 MHz Ready to go development kit 19 mA 0 dBm DVKSFEU API 1GEVK including a 2 year 49 mA 14 dBm Sigfox subscription Sigfox Ready certified reference design for the High Performance Narrowband Sigfox RF Transceiver AXSFEU and AXSFEUAPI ICs Receiver AXSF10MINI21868B1 and Carrier frequency 869.525 MHz AXSF10ANT21868B1, Sigfox compliant SMT Datarate 600 bps FSK modules based on AXSFEU with 50 pads or chip Sensitivity antenna. Not available for AXSFEUAPI 126 dBm 600 bps, 869.525 MHz, GFSK 0 dBm maximum input power General Features Transmitter QFN40 5 mm x 7 mm package Carrier frequency 868.13 MHz Supply range 1.8 V* 3.6 V Datarate 100 bps PSK 40C to 85C High efficiency, high linearity integrated power amplifier Temperature sensor Maximum output power 14 dBm Supply voltage measurements Power level programmable in 1 dBm steps *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: February, 2017 Rev. 5 AXSFEU/DAXSFEU, AXSFEUAPI BLOCK DIAGRAM AXSFEU / AXSFEUAPI CLKP CAL TCXO RF synthesis interface CLKN FILT Receive RX/TX ANTP switch and Communication antenna controller ANTN interface Transmit UARTRX UART UARTTX DAC GPIO 9:0 GPIO CPU ADC RADIO LED dedicated CPU LED status TX LED outputs RX LED Program memory (FLASH) power mode control RAM Sigfox identity (ID, PAC) Sigfox compliant application (AXSFEU only) Figure 1. Functional Block Diagram of the AXSFEU / AXSFEUAPI www.onsemi.com 2 GND VDD IO VDD ANA VTCXO RESET N