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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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ADE7758 датащи(PDF) 4 Page - Analog Devices |
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ADE7758 датащи(HTML) 4 Page - Analog Devices |
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4 / 72 page  ADE7758 Data Sheet Rev. E | Page 4 of 72 GENERAL DESCRIPTION The ADE7758 has a waveform sample register that allows access to the ADC outputs. The part also incorporates a detection circuit for short duration low or high voltage variations. The voltage threshold levels and the duration (number of half-line cycles) of the variation are user programmable. A zero-crossing detection is synchronized with the zero-crossing point of the line voltage of any of the three phases. This information can be used to measure the period of any one of the three voltage inputs. The zero-crossing detection is used inside the chip for the line cycle energy accumulation mode. This mode permits faster and more accurate calibration by synchronizing the energy accumulation with an integer number of line cycles. Data is read from the ADE7758 via the SPI serial interface. The interrupt request output (IRQ) is an open-drain, active low logic output. The IRQ output goes active low when one or more interrupt events have occurred in the . A status register indicates the nature of the interrupt. The is available in a 24-lead SOIC package. ADE7758 ADE7758 |
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