AX-SFJK-1-01-TX30

RF Transceiver ICS Overview

The AX-SFJK-1-01-TX30 is an ultra-low power single-chip RF transceiver and MCU solution designed for Sigfox network nodes in the Japan RCZ3a region. Operating at 922 MHz, it integrates a logic-level RS232 interface for radio parameter control. The device supports uplink and downlink functionality with a maximum data rate of 600 bps. It is housed in a 40-QFN (7x5 mm) package with exposed pads, delivering complete firmware readiness for immediate operation without external application software requirements.

RF Transceiver ICS Feature Summary

• Integrated Sigfox protocol stack and firmware for Japan RCZ3a region
• Logic-level RS232 interface for simplified host connection
• Ultra-low power consumption optimized for battery-operated IoT nodes
• Single-chip solution combining RF transceiver and microcontroller

RF Transceiver ICS Applications

• Sigfox IoT sensor nodes in Japan
• Remote monitoring systems requiring low data rates
• Battery-powered industrial telemetry devices
• Smart metering applications in the RCZ3a region

RF Transceiver ICS Procurement Notes

Verify that the specific suffix TX30 corresponds to the required tape-and-reel packaging configuration for automated assembly processes. Confirm regional certification status for Japan RCZ3a compliance before integration into final products. Ensure host system voltage levels match the logic-level RS232 interface specifications to prevent signal integrity issues during communication.

RF Transceiver ICS Selection Notes

Select this component when deploying Sigfox networks specifically within the Japan RCZ3a regulatory region. It is suitable for applications requiring minimal host MCU overhead due to integrated firmware. Consider the 40-QFN package constraints for PCB layout. This variant is preferred over API versions when proprietary application software development is not desired or feasible.

RF Transceiver ICS Part Context

This part belongs to the AX-SFJK family of ultra-low power Sigfox transceivers. Unlike the API variant which allows custom application software, this version includes pre-loaded firmware for standard Sigfox operations. It complements onsemi's ecosystem by providing a turnkey solution for Japanese market deployments, reducing development time compared to generic ISM band transceivers.

RF Transceiver ICS Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. The AX-SFJK-API-1-01-TX30 serves as the functional alternative if custom firmware implementation is required instead of the pre-loaded Sigfox stack.