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）
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[ CXEP2330 ]
目录
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......
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Electricity Metering ICs |
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|
Part Number |
Phase |
Internal Flash(KB) |
Internal RAM(KB) |
Analog Input |
Sensor Inputs (Current+Voltage) |
MCU MIPS |
RTC |
LCD Driver Pixels(max) |
GPIO |
UARTs |
|
3P |
||||||||||
|
3P |
||||||||||
|
1P |
||||||||||
|
3P |
||||||||||
|
1P |
64 |
7 |
Singleend |
2SE + 1 |
5 |
Yes |
128 (32x4) |
12 |
2 |
|
|
1P |
64 |
7 |
Singleend |
2SE + 1 |
5 |
Yes |
128 (32x4) |
12 |
2 |
|
|
3P |
64 |
7 |
Singleend |
3SE + 3 |
5 |
Yes |
168 (42x4) |
22 |
2 |
|
|
3P |
64 |
7 |
Singleend |
3SE + 3 |
5 |
Yes |
168 (42x4) |
22 |
2 |
|
|
3P |
64 |
7 |
Singleend |
3SE + 3 |
5 |
Yes |
8 |
1 |
||
|
1P/2P |
128 |
4 |
Singleend |
2SE + 2 |
10 |
Yes |
156 (39x4) |
22 |
2 |
|
|
1P/2P |
256 |
4 |
Singleend |
2SE + 2 |
10 |
Yes |
156 (39x4) |
22 |
2 |
|
|
1P/2P |
128 |
4 |
Differential |
2D + 2 |
10 |
Yes |
268 (67x4) |
43 |
2 |
|
|
1P/2P |
256 |
4 |
Differential |
2D + 2 |
10 |
Yes |
268 (67x4) |
43 |
2 |
|
|
3P |
128 |
4 |
Differential |
4D + 3 |
10 |
Yes |
228 (57x4) |
39 |
2 |
|
|
3P |
128 |
4 |
Differential |
4D + 3 |
10 |
Yes |
228 (57x4) |
39 |
2 |
|
|
3P |
128 |
4 |
Differential |
4D + 3 |
10 |
Yes |
300 (75x4) |
52 |
2 |
|
|
3P |
256 |
4 |
Differential |
4D + 3 |
10 |
Yes |
300 (75x4) |
52 |
2 |
|
|
1P |
32 |
3 |
Differential |
2D + 1 |
5 |
Yes |
222 (37x6) |
30 |
2 |
|
|
1P |
64 |
5 |
Differential |
2D + 1 |
5 |
Yes |
222 (37x6) |
30 |
2 |
|
|
1P |
128 |
5 |
Differential |
2D + 1 |
5 |
Yes |
222 (37x6) |
30 |
2 |
|
|
1P/2P |
64 |
5 |
Differential |
2D + 2 |
5 |
Yes |
336 (56x6) |
51 |
2 |
|
|
1P/2P |
128 |
5 |
Differential |
2D + 2 |
5 |
Yes |
336 (56x6) |
51 |
2 |
|
|
3P |
64 |
5 |
Differential |
4D + 3 |
5 |
Yes |
336 (56x6) |
51 |
2 |
|
|
3P |
128 |
5 |
Differential |
4D + 3 |
5 |
Yes |
336 (56x6) |
51 |
2 |
|
|
3P |
128 |
5 |
Differential |
4D + 3 |
5 |
Yes |
336 (56x6) |
51 |
2 |
|
|
3P |
64 |
5 |
Differential |
4D + 3 |
5 |
Yes |
336 (56x6) |
51 |
2 |
|
|
3P |
64 |
5 |
Differential |
4D + 3 |
5 |
Yes |
29 |
1 |
||
|
3P |
64 |
5 |
Differential |
4D + 3 |
5 |
Yes |
29 |
1 |
||
|
1P |
||||||||||
|
1P ,3P |
0 |
0 |
Differential |
2D |
300(50x6) |
70 |
0 |
|||
|
1P/2P |
64 |
8 |
Differential |
2D + 2 |
10 |
Yes |
156(39x4) 190(38X5) 222(37x6) |
39 |
3 |
|
|
1P/2P |
128 |
8 |
Differential |
2D + 2 |
10 |
Yes |
156(39x4) 190(38X5) 222(37x6) |
39 |
3 |
|
|
1P |
256 |
48 |
Differential |
4D + 3SE |
20 |
Yes |
160(40x4) 228(38x6) 288(36x8) |
88 |
5 |
|
|
1P |
512 |
48 |
Differential |
4D + 3SE |
20 |
Yes |
160(40x4) 228(38x6) 288(36x8) |
88 |
5 |
|
|
3P |
256 |
48 |
Differential |
4D + 3SE |
20 |
Yes |
160(40x4) 228(38x6) 288(36x8) |
88 |
5 |
|
|
3P |
512 |
48 |
Differential |
4D + 3SE |
20 |
Yes |
160(40x4) 228(38x6) 288(36x8) |
88 |
5 |
|
|
1P 1P/2P |
1024 |
128 |
Differential |
2D + 2 |
54 |
Yes |
300(50x6) |
70 |
7 |
|
|
3P |
1024 |
128 |
Differential |
4D + 3SE |
54 |
Yes |
300(50x6) |
70 |
8 |
|
