CXEM2310A CXEM2310B是一种低成本、高精度、高稳定性、电能
用于单相、多功能应用的测量集成电路。
CXEM2310A CXEM2310B包含两个高精度Sigma-Delta ADC、电压基准，
用于计算有功功率的电源管理和数字信号处理电路
能量、无功能量、视在能量、IRMS、VRMS等。
CXEM2310A CXEM2310B测量线路电压、电流并计算有功、无功，
视在能量、功率因数、线路频率、检测弧垂、过电压、过电流，
峰值，过零电压。
CXEM2310A CXEM2310B通过SPI通信接口提供对片上仪表寄存器的访问。
CXEM2310A CXEM2310B提供全数字域偏移补偿、增益调整、相位补偿（最大±2.54°可调）。
高精度。在3000:1的动态范围内，有功和无功测量误差小于0.1%。
高稳定性，输出频率波动误差小于0.1%。
测量正向和负向的有功功率，转换为快速脉冲输出（CF）。
测量到快速脉冲输出（CF_VAR）的无功功率转换。
测量到快速脉冲输出（CF_VA）的无功功率转换。
在1500:1的动态范围内测量瞬时IRMS和VRMS。
片内凹陷和过零检测器。片上电源检测器。
具有可编程阈值设置的片内防爬保护。
提供可编程频率调节的脉冲输出。
提供可编程增益调节和相位补偿
测量功率因数（PF）。
提供可编程中断请求信号（/IRQ）。
提供SPI/UART通信接口。
片上电压基准为2.5V.
带3.58MHz外部晶体振荡器。
单5V电源，30mW（典型）
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[ CXEM2310A ]"
目录
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）
一.产品概述
The CXEM2310A CXEM2310B is a low cost, high accuracy, high stability, electrical energy
measurement IC intended to single phase, multifunction applications.
The CXEM2310A CXEM2310B incorporates two high accuracy Sigma-Delta ADC, voltage reference,
power management and digital signal processing circuit using to calculates active
energy , reactive energy ,apparent energy ,IRMS ,VRMS etc.
The CXEM2310A CXEM2310B measures line voltage, current and calculates active ,reactive ,
apparent energy, power factor, line frequency, detect SAG, overvoltage, overcurrent,
PEAK, zero-crossing voltage.
The CXEM2310A CXEM2310B provide access to on-chip meter registers via SPI communication interface.
The CXEM2310A CXEM2310B provide all-digital domain offset compensation, gain adjustment, phase compensation (maximum ±2.54°adjustable).
二.产品特点
High accuracy. Less than 0.1% error in active energy measurement and reactive measurement over a dynamic range of 3000:1.
High stability, less than 0.1%error in the output frequency fluctuation.
Measure the active power in the positive orientation and negative orientation, transform to fast pulse output (CF).
Measure the reactive power transform to fast pulse output (CF_VAR).
Measure the reactive power transform to fast pulse output (CF_VA).
Measure instantaneous IRMS and VRMS over a dynamic range of 1500:1.
On-chip SAG and zero-crossing detector. On-chip power supply detector.
On-chip anti-creep protection with the programmable threshold set.
Provide the pulse output with programmable frequency adjustment.
Provide the programmable gain adjustment and phase compensation
Measure the power factor (PF).
Provide a programmable interrupt request signal (/IRQ).
Provide a SPI/UART communication interface.
On-chip voltage reference of 2.5V.
With 3.58MHz external crystal oscillator.
Single 5V supply, 30mW(typical)
三.应用范围
电表
四.技术规格书（产品PDF)
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！
五.产品封装图
六.电路原理图
七.相关芯片选择指南
| 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 |
