STMicroelectronics

S2-LPTXQTR Sub-1 GHz Transmitter

STMicroelectronics' ultra-low power RF transmitter is intended for RF wireless applications in the sub-1 GHz band

Image of STMicroelectronics S2-LPTXQTR Sub-1 GHz TransmitterSTMicroelectronics' S2-LPTX is a high-performance ultra-low power RF transmitter intended for RF wireless applications in the sub-1 GHz band. It is designed to operate in both the license-free ISM and SRD frequency bands at 433 MHz, 868 MHz, and 920 MHz, but can also be programmed to operate at other additional frequencies in the 413 MHz to 479 MHz and 826 MHz to 958 MHz ranges.

The S2-LPTX supports different modulation schemes: 2(G)FSK, 4(G)FSK, OOK, and ASK. The air data rate is programmable from 0.1 kbps to 500 kbps. The S2-LPTX meets the regulatory requirements applicable in territories worldwide, including Europe, Japan, China, and the USA.

Features
  • Frequency bands: 413 MHz to 479 MHz and 826 MHz to 958 MHz
  • Modulation schemes: 2(G)FSK, 4(G)FSK, OOK, and ASK
  • Air data rate from 0.1 kbps to 500 kbps
  • Ultra-low power consumption: 10 mA TX at +10 dBm
  • Programmable RF output power up to +16 dBm
  • Programmable channel spacing
  • Fast startup and frequency synthesizer settling time
  • Battery indicator and low battery detector
  • TX 128 bytes FIFO buffers
  • 4-wire SPI (serial peripheral interface)
  • Operating temperature range: -40°C to +105°C
  • Part of ST 10-year longevity program
  • One-way data connectivity, remote monitoring, and Cloud access in a cost-efficient flavor
Applications
  • Sensors to Cloud
  • Smart metering
  • Home energy management systems
  • Wireless alarm systems
  • Smart homes
  • Building automation
  • Industrial monitoring and control
  • Smart lighting systems

Evaluation Boards

ImageManufacturer Part NumberDescriptionContentsAvailable QuantityPriceView Details
BOARD & REF DESIGNSTEVAL-FKI915V1BOARD & REF DESIGNBoard(s)2 - Immediate$100.84View Details
EVAL BOARD FOR S2-LPSTEVAL-FKI868V2EVAL BOARD FOR S2-LPBoard(s)5 - Immediate$97.40View Details
EVAL BOARD FOR S2-LPSTEVAL-FKI433V2EVAL BOARD FOR S2-LPBoard(s)5 - Immediate$93.94View Details
Published: 2020-05-21