Maxim 71M6543F第四代多相电表解决方案
Maxim公司的71M6543F/71M6543H是Teridian第四代多相电表系统级(SoC)芯片,包括有5MHz 8051兼容的MPU核,低功耗的带温度补偿的RTC,64KB闪存,5KB RAM和LCD驱动器,并集成了22位delta-sigma ADC,七个模拟输入端,数字温度补偿,精密的基准电压和32位计算引擎,器件只需极少数的外接元件.在2000:1电流范围内精度为0.1%,超过EC 62053/ANSI C12.20标准,主要用于商业和工业电表.本文介绍了71M6543F主要特性, 功能方框图, AFE功能方框图以及采用三个遥控与一个本地传感器和电流变压器的系统框图.
The 71M6543F/71M6543H are Teridian’s 4th-generation polyphase metering systems-on-chips (SoCs) with a 5MHz 8051-compatible MPU core, low-power real-time clock (RTC) with digital temperature compensation, flash memory, and LCD driver. Our Single Converter Technology® with a 22-bit delta-sigma ADC, seven analog inputs, digital metrology temperature compensation, precision voltage reference, and a 32-bit computation engine (CE) supports a wide range of metering applications with very few external components.
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