The industrial, scientific and medical (ISM) frequencies in the 900 MHz region and the European 868 to 870 MHz bands have been proving ground for a wide array of communications systems, from medical and industrial telemetry to consumer communications. Many of these services have either entered the mainstream of commercial communications at other frequencies or continued to operate in these license-free bands. The model CMX017 transmitter IC and model CMX018 receiver IC are designed to serve the growing number of applications operating in this region (including analog and digital narrowband) as well as spread spectrum radio links, cordless phones, handheld data terminals and wireless local area networks. With the addition of only a few other peripheral components, the two ICs can be integrated to form a small, cost-effective transceiver capable of transmitting and receiving FM or frequency-shift keying (FSK) signals in the 860 to 965 MHz frequency range with input data rates up to 500 kbps.
展开▼
机译：900 MHz 区域的工业、科学和医疗 （ISM） 频率以及欧洲 868 至 870 MHz 频段已成为各种通信系统的试验场，从医疗和工业遥测到消费者通信。其中许多业务要么以其他频率进入商业通信的主流，要么继续在这些免许可频段内运行。CMX017 型发射器 IC 和 CMX018 型接收器 IC 旨在服务于该地区不断增长的应用（包括模拟和数字窄带）以及扩频无线电链路、无绳电话、手持数据终端和无线局域网。只需添加一些其他外围元件，即可将这两个IC集成在一起，形成一个小型、高性价比的收发器，能够在860至965 MHz频率范围内发送和接收FM或频移键控（FSK）信号，输入数据速率高达500 kbps。
展开▼
