CXEP2330高精度模拟前端AFE IC四象限三相计量提供测量21位sigma-delta模数转换器与六输入AFE热补偿高精度基准源和计算引擎的结合产生了高精度和宽动态范围精确超稳定电压基准单变流器技术降低了串扰和功耗

CXEP2330是一款高精度模拟前端（AFE）IC，为四象限三相计量提供测量。21位sigma-delta模数转换器与六输入AFE、热补偿高精度基准源和计算引擎的结合产生了高精度和宽动态范围。我们的单转换器技术降低了串扰和成本。该集成电路还提供实时时钟（RTC）和电池备用时间（TOU）测量。主机处理器使用可编程IRQZ中断通过UART接口与CXEP2330通信。CXEP2330计算并累积每个累积间隔的仪表测量值。提供高速同步串行端口（SSI）以方便高端计量。电池备用电路上的集成整流功能可使外部组件使用最少，备用电流最小。此外，还提供了八个多用途插脚，用于控制外围设备。
高精度
在2000:1范围内<0.1%Wh精度
超过IEC 62053/ANSIC 12.20规范
高达10ppm/
精确超稳定电压基准
单变流器技术降低了串扰和功耗
参考V3P3的六个传感器输入
与电流互感器、电阻分流器和罗氏线圈传感器兼容
数字温度补偿
垂度检测
测量Wh、VARh、VAh、Vrms、Irms、V-to-V相位和每个相位上的负载角
四象限计量。
可选测量的四个低抖动脉冲输出
四个脉冲计数寄存器
脉冲引脚的可选默认状态
•46Hz至64Hz线频率的相同校准数据
宽CT相位补偿（±7度）备用电池
供电中断期间为实时时钟供电
与锂离子、镍镉或超级电容器兼容
电池备用电流2μA，25°C时为典型值
外部数据接口
UART控制接口，两种可选数据速率
具有报警功能的8个通用I/O引脚
·5或10MHz可选高速同步串行输出，用于数字信号处理器接口
警报和测量间隔结束时的IRQ输出信号
电压骤降、过电压、过电流报警系统成本低
典型3.3V时的30兆瓦功耗
带温度补偿的实时时钟
内置电源故障检测
单个32kHz晶体时基
单电源操作（3.3V）

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）

5.产品封装       6.电路原理图  

7.相关产品

   产品概述 返回TOP

---

The CXEP2330 is a high-accuracy analog front-end (AFE) IC that provides measurements for four-quadrant 3-phase metering. The combination of a 21-bit sigma-delta analog-to-digital converter with a six-input AFE, a thermally compensated high-precision reference, and a compute engine results in high accuracy and wide dynamic range. Our Single Converter Technology reduces crosstalk and cost. This IC also provides a real-time clock (RTC) and battery backup for time-of-use (TOU) metering.The host processor communicates with the CXEP2330 through a UART interface using the programmable IRQZ interrupt. The CXEP2330 calculates and accumulates meter measurements for each accumulation interval. A high-speed synchronous serial port (SSI) is provided to facilitate high-end metering.  Integrated rectifying functions on the battery-backup circuit enable minimal external component usage and minimum backup current. Also, eight multipurpose pins are provided for control of peripherals.

   产品特点 返回TOP

---

High Accuracy 

 < 0.1% Wh accuracy over 2000:1 range 

 Exceeds IEC 62053/ANSIC 12.20 specifications 

 Up to 10ppm/

C precision ultra-stable voltage reference 

 Single Converter Technology reduces cross talk and power consumption 

 Six sensor inputs—referenced to V3P3 

 Compatible with CTs, resistive shunts and Rogowski Coil sensors 

 Digital temperature compensation 

 Sag detection 

 Measures Wh, VARh, VAh, Vrms, Irms, V-to-V phase and load angle on each phase 

 Four-quadrant metering. 

 Four low-jitter pulse outputs from selectable measurements 

 Four pulse count registers 

 Selectable default status for pulse pins 

 Same calibration data for 46Hz to 64Hz line frequency 

 Broad CT phase compensation (±7deg) Battery Backup 

 Powers real-time clock during power supply outage 

 Compatible with Li-ion, NiCd, or super capacitor 

 Battery backup current 2μA typical at 25°C

External Data Interface 

 UART control interface, two selectable data rates 

 8 general-purpose I/O pins with alarm capability 

 5 or 10MHz selectable high-speed synchronous serial output for DSP interface 

 IRQ output signal for alarms and end of measurement intervals 

 Alarms on voltage sag, overvoltage, overcurrent Low System Cost 

 Power consumption 30mW at 3.3V typical 

 Real-time clock with temperature compensation 

 Built-in power-fault detection 

 Single 32kHz crystal time base 

 Single-supply operation (3.3V)

 64-lead LQFP package

   应用范围 返回TOP

---

Industrial, Commercial, and Residential Meters

   技术规格书（产品PDF) 返回TOP 

---

     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！

 

产品封装图 返回TOP

---

电路原理图 返回TOP

---

相关芯片选择指南 返回TOP                               更多同类产品......

---

Electricity Metering ICs
Part Number	Phase	Internal  Flash(KB)	Internal  RAM(KB)	Analog Input	Sensor Inputs   (Current+Voltage)	MCU MIPS	RTC	LCD Driver Pixels(max)	GPIO	UARTs
CXEP2324	3P
CXEP2325	3P
CXEP2326	1P
CXEP2327	3P
CXEP2328	1P	64	7	Singleend	2SE + 1	5	Yes	128 (32x4)	12	2
CXEP2328A	1P	64	7	Singleend	2SE + 1	5	Yes	128 (32x4)	12	2
CXEP2329	3P	64	7	Singleend	3SE + 3	5	Yes	168 (42x4)	22	2
CXEP2329A	3P	64	7	Singleend	3SE + 3	5	Yes	168 (42x4)	22	2
CXEP2330	3P	64	7	Singleend	3SE + 3	5	Yes		8	1
CXEP2331A	1P/2P	128	4	Singleend	2SE + 2	10	Yes	156 (39x4)	22	2
CXEP2331B	1P/2P	256	4	Singleend	2SE + 2	10	Yes	156 (39x4)	22	2
CXEP2332A	1P/2P	128	4	Differential	2D + 2	10	Yes	268 (67x4)	43	2
CXEP2332B	1P/2P	256	4	Differential	2D + 2	10	Yes	268 (67x4)	43	2
CXEP2333A	3P	128	4	Differential	4D + 3	10	Yes	228 (57x4)	39	2
CXEP2333B	3P	128	4	Differential	4D + 3	10	Yes	228 (57x4)	39	2
CXEP2334A	3P	128	4	Differential	4D + 3	10	Yes	300 (75x4)	52	2
CXEP2334B	3P	256	4	Differential	4D + 3	10	Yes	300 (75x4)	52	2
CXEP2335A	1P	32	3	Differential	2D + 1	5	Yes	222 (37x6)	30	2
CXEP2335B	1P	64	5	Differential	2D + 1	5	Yes	222 (37x6)	30	2
CXEP2335C	1P	128	5	Differential	2D + 1	5	Yes	222 (37x6)	30	2
CXEP2336A	1P/2P	64	5	Differential	2D + 2	5	Yes	336 (56x6)	51	2
CXEP2336B	1P/2P	128	5	Differential	2D + 2	5	Yes	336 (56x6)	51	2
CXEP2337A	3P	64	5	Differential	4D + 3	5	Yes	336 (56x6)	51	2
CXEP2337B	3P	128	5	Differential	4D + 3	5	Yes	336 (56x6)	51	2
CXEP2337C	3P	128	5	Differential	4D + 3	5	Yes	336 (56x6)	51	2
CXEP2337D	3P	64	5	Differential	4D + 3	5	Yes	336 (56x6)	51	2
CXEP2338A	3P	64	5	Differential	4D + 3	5	Yes		29	1
CXEP2338B	3P	64	5	Differential	4D + 3	5	Yes		29	1
CXEP2339	1P
CXEP2340	1P ,3P	0	0	Differential	2D			300(50x6)	70	0
CXEP2341	1P/2P	64	8	Differential	2D + 2	10	Yes	156(39x4)  190(38X5) 222(37x6)	39	3
CXEP2342	1P/2P	128	8	Differential	2D + 2	10	Yes	156(39x4)  190(38X5) 222(37x6)	39	3
CXEP2343	1P	256	48	Differential	4D + 3SE	20	Yes	160(40x4)  228(38x6) 288(36x8)	88	5
CXEP2344	1P	512	48	Differential	4D + 3SE	20	Yes	160(40x4)  228(38x6)  288(36x8)	88	5
CXEP2345	3P	256	48	Differential	4D + 3SE	20	Yes	160(40x4) 228(38x6) 288(36x8)	88	5
CXEP2346	3P	512	48	Differential	4D + 3SE	20	Yes	160(40x4)  228(38x6)  288(36x8)	88	5
CXEP2347	1P  1P/2P	1024	128	Differential	2D + 2	54	Yes	300(50x6)	70	7
CXEP2348	3P	1024	128	Differential	4D + 3SE	54	Yes	300(50x6)	70	8