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
