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首页 > Products > MCU Memory ADC Clock  > MCU > Energy Measurement ASIC >Cxem2309b is a wide range single-phase multifunction electronic energy metering chip which is suitable for simple single-phase multifunction or single-phase power line carrier watt hour meter applications
Cxem2309b is a wide range single-phase multifunction electronic energy metering chip which is suitable for simple single-phase multifunction or single-phase power line carrier watt hour meter applications

Cxem2309b integrates two high-precision sigma delta ADC, reference voltage, power management and other analog circuit modules, and processes active power and apparent power
The digital signal processing circuit of electric parameters such as power, effective value of current and voltage.
Cxem2309b has a current sampling terminal to sample the live line current

Cxem2309b is a wide range single-phase multifunction electronic energy metering chip which is suitable for simple single-phase multifunction or single-phase power line carrier watt hour meter applications
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目录dXb嘉泰姆

   1.产品概述   2.产品特点   3.应用范围    4.技术规格书下载(PDF文档)dXb嘉泰姆

   5.产品封装  6.电路原理图  7.相关产品dXb嘉泰姆

一.产品概述dXb嘉泰姆


  CXEM2309B 是一颗宽量程单相多功能电子电能计量芯片,适用于简单单相多功能或单相电力线载 波电能表应用,dXb嘉泰姆

具有较高的性价比。 dXb嘉泰姆

   CXEM2309B集成了2路高精度Sigma-Delta ADC, 参考电压,电源管理等模拟电路模块,以及处理有功功率、视在dXb嘉泰姆

功率、电流电压有效值等电参数的数 字信号处理电路。 dXb嘉泰姆

  CXEM2309B 具有一个电流采样端,采样火线电流。 dXb嘉泰姆

  CXEM2309B 能够测量单相有功能量、视在能量、 功率因子、电流电压有效值、线频率等参数;具有 失压及过压监测dXb嘉泰姆

功能;电流电压峰值检测;过零检 测,能够充分满足简单单相多功能电能表的需要。 dXb嘉泰姆

  CXEM2309B 集成一个 SPI 接口,方便与外部 MCU 之间进行计量参数以及校表参数的传递。 dXb嘉泰姆

  CXEM2309B 支持全数字域的偏置补偿、增益调 整、相位校正(最大±2.54°可调)等。有功功率校 验输出快速脉冲 CF,dXb嘉泰姆

可以直接接到标准表进行误 差校正。 dXb嘉泰姆

  CXEM2309B 符合新农村电网需求。 dXb嘉泰姆

二.产品特点dXb嘉泰姆


高精度,在输入动态工作范围(3000:1)内, dXb嘉泰姆

非线性测量误差小于 0.1%  dXb嘉泰姆

高稳定性,输出频率波动小于 0.1%  dXb嘉泰姆

芯片可精确测量正负两个方向的有功功率,输 出快速输出脉冲(CF)  dXb嘉泰姆

芯片给出电压和电流的有效值,测量范围 (20mA~12Ib)  dXb嘉泰姆

芯片具有电压失压和断相检测功能  dXb嘉泰姆

芯片上有电源电压监测电路,检测掉电状况  dXb嘉泰姆

芯片具有防潜动功能,可编程防潜阀值设置  dXb嘉泰姆

芯片具有可编程调整脉冲输出的频率  dXb嘉泰姆

芯片具有可编程增益调整和相位补偿  dXb嘉泰姆

功率因子(PF)测量范围(20mA~12Ib)  dXb嘉泰姆

芯片可按需要给出中断请求信号(/IRQ)  dXb嘉泰姆

芯片具有一个 SPI 通信接口,用于数据传输  dXb嘉泰姆

芯片内置参考电压源2.5V,也可使用外部2.5V 电压  dXb嘉泰姆

芯片外接晶振 3.58MHz  dXb嘉泰姆

芯片单工作电源 5V,低功耗 25mW(典型值)dXb嘉泰姆

三.应用范围dXb嘉泰姆


   电表 dXb嘉泰姆

四.技术规格书(产品PDF)dXb嘉泰姆


需要详细的PDF规格书请扫一扫微信联系我们,还可以获得免费样品以及技术支持!dXb嘉泰姆

 QQ截图20160419174301.jpgdXb嘉泰姆

五.产品封装图dXb嘉泰姆


  image.pngdXb嘉泰姆

六.电路原理图dXb嘉泰姆


dXb嘉泰姆
七.相关芯片选择指南dXb嘉泰姆


电能计量专用电路(Energy Measurement ASIC)
Part No. Meter Measurement Power Consumption Anti-Tamper Output Clock VDD Package
CXEM2303 Single Active 20mW 2 Channels Pulse Internal 5V SOP16
CXEM2304E Single Active 3000:1 15mW Reverse Indication Pulse Internal 5V SOP16
CXEM2305 Single Multifunction (Active, I, V, P.) 6mW   Pulse Internal 3.3V SOP8
CXEM2306A Single Active 15mW 2 Channels Pulse 3.58MHz 5V SSOP24
CXEM2307E Single Active 15mW Reverse Indication Pulse 3.58MHz 5V SSOP24
CXEM2308B Single Multifunction (Active   5000:1, I, V, P, S, PF, Freq.) 25mW 3 Channels Pulse, SPI 3.58MHz 5V SSOP24
CXEM2308GX Single Multifunction (Active 6000:1, I, V,   P, S, PF, Freq.) 20mW 3 Channels Pulse, UART 3.58MHz 5V SOP16
CXEM2309B Single Multifunction (Active 5000:1, I, V, P, S, PF, Freq.) 25mW Reverse Indication Pulse, SPI 3.58MHz 5V SOP16
CXEM2310A Single Multifunction (Active 3000:1, Reactive 3000:1, I, V, P,   S, PF, Freq.) 25mW 2 Channels Pulse, SPI/UART 3.58MHz 5V SSOP24
CXEM2310B Single Multifunction (Active 3000:1, Reactive 3000:1, I, V, P,   S, PF, Freq.) 25mW 2 Channels Pulse, SPI 3.58MHz 5V SSOP20
CXEM2311 Three Active 3000:1 25mW Reverse Indication By Any Pulse 2.5~4MHz 5V SOP24
CXEM2312C Three Active 3000:1 25mW Reverse Indication By Any Pulse 2.5~4MHz 5V SOP24
CXEM2313B Three Multifunction (Active   3000:1, Reactive 3000:1, I, V, P, Q, S, PF, Freq ) 30mW Reverse Indication By   Any 2Pulse,SPI 3.58MHz 3.3V LQFP44