S2-LPTXQTR

RF Transceiver ICS Overview

The S2-LPTXQTR is a high-performance, ultra-low power RF transmitter from STMicroelectronics designed for sub-1 GHz wireless applications. It operates within the 413 MHz to 958 MHz frequency range and supports supply voltages between 1.8 V and 3.6 V. The device delivers programmable output power up to +16 dBm with transmit currents ranging from 11.5 mA to 32 mA. It supports data rates from 0.1 kbps to 500 kbps using modulation schemes including ASK, OOK, 2FSK, 2GFSK, 4FSK, and 4GFSK. Packaged in a 24-pin QFN, it functions within an operating temperature range of -40°C to 105°C.

RF Transceiver ICS Feature Summary

• Ultra-low power consumption optimized for battery-operated IoT devices
• Integrated protocol engine supporting IEEE 802.15.4g and W-MBus standards
• High sensitivity receiver architecture enabling extended communication ranges
• Flexible SPI interface and GPIO interrupt capabilities for simple MCU integration

RF Transceiver ICS Applications

• Smart metering and utility automation systems
• Wireless sensor networks and industrial telemetry
• Home automation and security alarm systems
• Remote control and keyless entry solutions

RF Transceiver ICS Procurement Notes

Verify the specific suffix 'QTR' indicates tape and reel packaging when sourcing. Confirm the exact frequency band variant required for your target region, as the S2-LP family covers multiple sub-GHz bands. Ensure compatibility with your microcontroller's SPI speed and voltage levels. Check for updated RoHS compliance status on official distributor pages before finalizing procurement orders.

RF Transceiver ICS Selection Notes

Select this component if your design requires a dedicated transmitter rather than a full transceiver, as the S2-LPTX lacks receive functionality. Compare power consumption metrics against competing sub-GHz chips to ensure it meets battery life targets. Verify that the supported modulation types align with your network protocol requirements. Consider the thermal performance within the specified -40°C to 105°C range for your enclosure design.

RF Transceiver ICS Part Context

The S2-LPTXQTR belongs to the S2-LP family of ultra-low power sub-1 GHz wireless devices from STMicroelectronics. This family includes both transmitters (S2-LPTX) and transceivers (S2-LP), sharing similar low-power architectures and protocol engines. The QTR suffix typically denotes a specific packaging or quantity configuration for manufacturing efficiency. These components are widely used in IoT ecosystems requiring long-range, low-data-rate connectivity.

RF Transceiver ICS Replacement Considerations

Direct replacements include other S2-LP family members like the S2-LP transceiver if receive capability is needed. Evaluate competitors such as TI CC1101 or Semtech SX1276 for pin-compatible or functionally equivalent alternatives. Ensure any substitute supports the same modulation schemes and data rates required by your application firmware.