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STMicroelectronics STS1TX低功耗RF发射器

STMicroelectronics STS1TX低功耗RF发射器低功耗RF发射器设计用于1GHz以下波段RF无线应用。它设计工作于无需授权的ISM和SRD频段的169、315、433、868和915MHz，但也可设定工作于300-348、387-470、779-956MHz的其他频率。无线数据速率在1到500kbps的范围可编程，STS1TX可用于信道间隔为12.5/25kHz的系统，符合EN 300 220标准。它使用非常少的分立外部元件，集成了一个可配置基带调制解调器，支持数据管理和调制。数据管理以专有的完全可编程的分组格式处理数据，也支持M-Bus标准兼容格式（所有性能级别）。它还提供了一个AES 128位加密协处理器，用于保护数据传输安全。STS1TX支持不同调制方式：2-FSK、GFSK、OOK、ASK、MSK。发送的数据字节以FIFO缓冲（TX FIFO），经由SPI接口访问，进行主机处理。

The STMicroelectronics STS1TX uses very few discrete external components and integrates a configurable baseband modem, which supports data management and modulation. The data management handles the data in the proprietary fully-programmable packet format, and also allows the M-Bus standard compliance format (all performance classes). An AES 128-bit encryption co-processor is available for secure data transfer. The STS1TX supports different modulation schemes: 2-FSK, GFSK, OOK, ASK, and MSK. Transmitted data bytes are buffered in FIFO (TX FIFO), accessible via the SPI interface for host processing.

特性

  • Frequency bands: 150MHz to 174MHz, 300MHz to 348MHz, 387MHz to 470MHz, 779MHz to 956MHz
  • Modulation schemes: 2-FSK, GFSK, MSK, GMSK, OOK, and ASK
  • Air data rate from 1kbps to 500kbps
  • Very low power consumption (21mA TX at +11dBm)
  • Programmable channel spacing (12.5kHz min.)
  • Programmable output power up to +16dBm
  • Fast startup and frequency synthesizer settling time (6μs)
  • Integrated temperature sensor
  • Battery indicator and low battery detector
  • TX FIFO buffer (96bytes each)
  • Configurability via SPI interface
  • AES 128-bit encryption co-processor
  • Fully integrated ultra low-power RC oscillator
  • Wakeup on internal timer and on external event
  • Flexible packet length with dynamic payload length
  • Automatic CRC handling
  • FEC with interleaving
  • Whitening of data
  • Wireless M-BUS, EN 300 220, FCC CFR47 15 (15.205, 15.209, 15.231, 15.247, 15.249), and ARIB STD T-67, T93, T-108 compliant
  • -40°C to +85°C operating temperature range
  • 4mm x 4mm QFN20 package
  • RoHS compliant

应用

  • AMR (automatic meter reading)
  • Home and building automation
  • WSN (wireless sensors network)
  • Industrial monitoring and control
  • Wireless fire and security alarm systems
  • Point-to-point wireless link

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Block Diagram

STMicroelectronics STS1TX低功耗RF发射器
发布日期: 2014-03-14 | 更新日期: 2022-03-11