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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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FS9721_LP1 датащи(PDF) 12 Page - Fortune Semiconductor Corp. |
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FS9721_LP1 датащи(HTML) 12 Page - Fortune Semiconductor Corp. |
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12 / 41 page  FS9721_LP1 Rev. 2.0 11/41 To Adjust by 512.0nF Mode 5.120 μF Mode 1%+2 Counts 51.20 μF Mode 1.5%+2 Counts *1 In the duty cycle measurement, we have to input square waves. The main error of the measurement is due to the error of the pulse width that the comparator can resolve. Suppose the error is 100ns and the input frequency is 100KHz. We can divide the square wave into 1000 segments (1000 counts), and thus each count takes 10 ns. Therefore the maximum error in Duty Cycle measurement is (100ns/10ns)=10 Counts. 50% duty cycle signal can be measured to 50.0%±1.0%. The signal may not be measured if the duty cycle is more than 99% or less than 1%, and the measurement will display 0.00%. |
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