参数资料
型号: ADE7953ACPZ
厂商: Analog Devices Inc
文件页数: 36/72页
文件大小: 0K
描述: IC ENERGY METERING 1PH 28LFCSP
标准包装: 1
输入阻抗: 660 千欧
测量误差: 0.1%
电压 - 高输入/输出: 2.4V
电压 - 低输入/输出: 0.4V
电流 - 电源: 6.8mA
电源电压: 3 V ~ 3.6 V
测量仪表类型: 单相
工作温度: -40°C ~ 85°C
安装类型: 表面贴装
封装/外壳: 28-WFQFN 裸露焊盘,CSP
供应商设备封装: 28-LFCSP-WQ(5x5)
包装: 托盘

ADE7953
PERIOD MEASUREMENT
The ADE7953 provides a period measurement of the voltage
channel. This measurement is provided in the 16-bit, unsigned
period register (Address 0x10E). The period register is updated
once every line period and has a settling time of 30 ms to 40 ms
associated with it before the period measurement is stable.
The period measurement has a resolution of 4.48 μs/LSB
(223 kHz clock), which represents 0.0224% when the line
Data Sheet
The value of the period register for a 50 Hz network is approxi-
mately 4460 in decimal (223 kHz/50 Hz) and 3716 in decimal
(223 kHz/60 Hz) for a 60 Hz network. The period register is
stable at ±1 LSB when the line is established and the measure-
ment does not change.
The following equation can be used to compute the line period
and frequency using the period register:
frequency is 50 Hz and 0.0268% when the line frequency
is 60 Hz.
T L =
PERIOD[15: 0] + 1
223 kHz
sec
(36)
Rev. B | Page 36 of 72
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