Melexis MLX90129 13.56MHz RFID方案

Melexis 公司的MLX90129是13.56MHz 传感器标签/数据采集IC,它把用于外部电阻传感器的精密数据采集和广泛外设组合在一起,存取和控制通过ISO15693 RFID前端或主/从SPI端口进行,除了13.56MHz调谐天线外不需要其它元件. MLX90129具有带存取保护的4kb EEPROM,以及单独使用的数据采集模式,主要用在冷链监视,财产管理和监视,建筑物自动化以及工业,医疗和住宅区控制与监视.本文介绍MLX90129主要特性,方框图,应用方框图,以及多种应用框图和MLX90129 评估板框图,电路图和材料清单(BOM).

MLX90129: 13.56MHZ SENSOR TAG / DATALOGGER IC

The MLX90129 combines a precise acquisition chain for external resistive sensors, with a wide range of interface possibilities. It can be accessed and controlled through its ISO15693 RFID front-end or via its SPI port.Without any other component than a 13,56MHz tuned antenna, it becomes a RFID thermometer.

For measuring others physical quantities, one or two resistive sensors can be connected to make batteryless sensing point. In this tag mode, the chip can supply a regulated voltage to the other components of the application.

Adding a battery will enable the use of the standalone data logging mode. The sensor output data is stored in the internal 3.5kbits user memory. One can extend the storage capacity by connecting an external E2PROM to the SPI port.
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