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ADE7763 데이터시트(PDF) 10 Page - Analog Devices |
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ADE7763 데이터시트(HTML) 10 Page - Analog Devices |
10 / 56 page ADE7763 Data Sheet Rev. C | Page 10 of 56 Pin No. Mnemonic Description 14 IRQ Interrupt Request Output. This is an active low, open-drain logic output. Maskable interrupts include active energy register rollover, active energy register at half level, and arrivals of new waveform samples—see the Interrupts section. 15 CLKIN Master Clock for ADCs and Digital Signal Processing. An external clock can be provided at this logic input. Alternatively, a parallel resonant AT crystal can be connected across CLKIN and CLKOUT to provide a clock source for the ADE7763. The clock frequency for specified operation is 3.579545 MHz. Ceramic load capacitors between 22 pF and 33 pF should be used with the gate oscillator circuit. Refer to the crystal manufacturer’s data sheet for load capacitance requirements. 16 CLKOUT A crystal can be connected across this pin and CLKIN, as described for Pin 15, to provide a clock source for the ADE7763. The CLKOUT pin can drive one CMOS load when either an external clock is supplied at CLKIN or a crystal is being used. 17 CS Chip Select1. Part of the 4-wire SPI serial interface. This active low logic input allows the ADE7763 to share the serial bus with several other devices—see the Serial Interface section. 18 SCLK Serial Clock Input for the Synchronous Serial Interface1. All serial data transfers are synchronized to this clock—see the Serial Interface section. The SCLK has a Schmitt-trigger input for use with a clock source that has a slow edge transition time, such as an opto-isolator output. 19 DOUT Data Output for the Serial Interface. Data is shifted out at this pin upon the rising edge of SCLK. This logic output is normally in a high impedance state, unless it is driving data onto the serial data bus—see the Serial Interface section. 20 DIN Data Input for the Serial Interface. Data is shifted in at this pin upon the falling edge of SCLK—see the Serial Interface section. 1 It is recommended to drive the RESET, SCLK, and CS pins with either a push-pull without an external series resistor or with an open-collector with a 10 kΩ pull-up Pull- down resistors are not recommended because under some conditions, they may interact with internal circuitry. |
유사한 부품 번호 - ADE7763_15 |
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유사한 설명 - ADE7763_15 |
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