Infineon TDA5225低功耗多协议无线接收方案

Infineon 公司的SmartLEWISTM RX+TDA5225是具有增强灵敏度的多协议无线接收器.这种低功耗ASK/FSK接收器工作频带为300-320, 425-450,863-870 和902-928 MHz,电源电压3.0-3.6 V或 4.5-5.5 V时符合汽车质量标准,工作温度在-40 和+105℃之间. TDA5225集成了分辨率为10.5 Hz的21位Sigma-Delta分数N PLL合成器.主要用于汽车的遥控无键盘进入系统,胎压监视,短程无线数据发送,遥控单元,无绳告警系统和遥控读表.本文介绍了TDA5225主要特性, 功能方框图以及包括RF部分, 单路/双路下变换框图, SK/FSK解调器和电源在内的部分功能方框图, 典型应用框图, 评估板v1.0电路图, 元件布局图和评估板材料清单.

SmartLEWISTM RX+TDA5225 Enhanced Sensitivity Multi-Channel Quad-Configuration Receiver with Digital Slicer

The IC is a low power ASK/FSK Receiver for the frequency bands 300-320, 425-450,863-870 and 902-928 MHz. The chip offers a very high level of integration and needs only a few external components.

The device is qualified to automotive quality standards and operates between -40 and +105℃ at supply voltage ranges of 3.0-3.6 Volts or 4.5-5.5 Volts.
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