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參數(shù)資料
| 型號(hào)： | SA9122E |
| 廠商： | SAMES |
| 元件分類： | 電能質(zhì)量分析儀 |
| 英文描述： | SINGLE PHASE UNIDIRECTIONAL POWER/ENERGY METERING IC WITH SEPERATE 64 SEGMENT LCD DRIVER |
| 中文描述： | 單向單相功率/電能計(jì)量有獨(dú)立的集成電路64段LCD驅(qū)動(dòng) |
| 文件頁數(shù)： | 9/12頁 |
| 文件大小： | 199K |
| 代理商： | SA9122E |
SA9122E
sames
9/12
The formula for calculating the output frequency is given below:
f = 11.16
* FOUTX *
3.58MHz I
R
FOSC
*
I
I
.I
V
2
Where FOUTX
= Normal rated frequency (4Hz or 1160Hz)
FOSC
= Oscillator frequency (2MHz ...... 4MHz)
I
I
= Input current for current sensor input (16μA at rated line current)
I
V
I
R
= Input current for voltage sensor input (14μA at rated line voltage)
= Reference current (typically 50μA)
XTAL is a colour burst TV crystal (f = 3.5795 MHz) for the oscillator. The oscillator
frequency is divided down to 1.7897 MHz on-chip, to supply the digital circuitry and the
A/D converters.
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