SPIRIT1QTR

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。
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SPIRIT1 RF Transceiver

STMicroelectronics SPIRIT1 RF Transceiver is a low-power RF transceiver intended for RF wireless applications in the sub-1GHz band. The SPIRIT1 is designed to operate both in the license-free ISM and SRD frequency bands at 169MHz, 315MHz, 433MHz, 868MHz, and 915MHz. It can also be programmed to operate at additional frequencies in the 300MHz to 348MHz, 387MHz to 470MHz, and 779MHz to 956MHz bands. The air data rate is programmable from 1kbps to 500kbps. This device can be used in systems with channel spacing of 12.5kHz/25kHz, complying with the EN 300 220 standard. STMicroelectronics SPIRIT1 RF Transceiver supports an embedded CSMA/CA engine. An AES 128-bit encryption co-processor is available for secure data transfer. The SPIRIT1 fully supports antenna diversity with an integrated antenna switching control algorithm.

for Audio ARticle: Sound Solutions for Wireless Audio - Jan 2015