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首页 > Products > MCU Memory ADC Clock  > MCU > Energy Measurement ASIC >Cxem2308b is a wide range single-phase multifunction electronic energy metering chip which is suitable for simple single-phase multifunction or single-phase power The application of line carrier
Cxem2308b is a wide range single-phase multifunction electronic energy metering chip which is suitable for simple single-phase multifunction or single-phase power The application of line carrier

Cxem2308b integrates three high-precision sigma delta ADC, reference voltage, power management and other analog circuit modules, and
A digital signal processing circuit for processing electric parameters such as active power, apparent power, effective value of current and voltage.
Cxem2308b has two current sampling terminals to sample the current of live line and zero line respectively, when the difference between them exceeds the set threshold value

Cxem2308b is a wide range single-phase multifunction electronic energy metering chip which is suitable for simple single-phase multifunction or single-phase power The application of line carrier
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目录KdR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)KdR嘉泰姆

    5.产品封装图         6.电路原理图      7.相关产品KdR嘉泰姆

一.产品概述  KdR嘉泰姆


  CXEM2308B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KdR嘉泰姆

线载波电能表应用,具有较高的性价比。 KdR嘉泰姆

  CXEM2308B集成了3路高精度Sigma-Delta ADC, 参考电压,电源管理等模拟电路模块,以及KdR嘉泰姆

处理有功功率、视在功率、电流电压有效值等电参数的数 字信号处理电路。 KdR嘉泰姆

  CXEM2308B 具有两个电流采样端,分别采样火线 和零线电流,当两者相差超过设定的阈值时KdR嘉泰姆

(可选 择比较有效值或有功功率),发出指示信号,表明 有窃电行为或错误接线。 KdR嘉泰姆

   CXEM2308B 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KdR嘉泰姆

数;具有 失压及过压监测功能;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KdR嘉泰姆

电能表的需要。 CXEM2308B 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KdR嘉泰姆

数的传递。 KdR嘉泰姆

   CXEM2308B 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KdR嘉泰姆

功率校验输 出快速脉冲 CF,可以直接接到标准表进行误差校 正。 CXEM2308B 符合新国家电网标准。KdR嘉泰姆

二.产品特点KdR嘉泰姆


高精度,在输入动态工作范围(5000:1)内,非线性测量误差小于 0.1%  KdR嘉泰姆

高稳定性,输出频率波动小于 0.1%  KdR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)  KdR嘉泰姆

芯片有两个电流采样端,采样火线和零线电流  KdR嘉泰姆

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

芯片具有电压失压和断相检测功能  KdR嘉泰姆

芯片上有电源电压监测电路,检测掉电状况  KdR嘉泰姆

芯片具有防潜动功能,可编程防潜阀值设置  KdR嘉泰姆

芯片具有可编程调整脉冲输出的频率  KdR嘉泰姆

芯片具有可编程增益调整和相位补偿  KdR嘉泰姆

功率因子(PF)测量范围(20mA~12Ib)  KdR嘉泰姆

芯片可按需要给出中断请求信号(/IRQ)  KdR嘉泰姆

芯片具有一个 SPI 通信接口,用于数据传输  KdR嘉泰姆

芯片内置参考电压源2.5V,也可使用外部2.5V 电压  KdR嘉泰姆

芯片外接晶振 3.58MHz  KdR嘉泰姆

芯片单工作电源 5V,低功耗 25mW(典型值) KdR嘉泰姆

相关专利申请中KdR嘉泰姆

三.应用范围    KdR嘉泰姆


   电子电能计量KdR嘉泰姆

四.技术规格书(产品PDF)    KdR嘉泰姆


需要详细的PDF规格书请扫一扫微信联系我们KdR嘉泰姆

  QQ截图20160419174301.jpgKdR嘉泰姆

五.产品封装图KdR嘉泰姆


  image.pngKdR嘉泰姆

六.电路原理图   KdR嘉泰姆


KdR嘉泰姆
 七.相关芯片选择指南KdR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