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ADE7754AR 数据表(PDF) 9 Page - Analog Devices |
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ADE7754AR 数据表(HTML) 9 Page - Analog Devices |
9 / 44 page REV. PrG 01/03 PRELIMINARY TECHNICAL DATA ADE7754 – 9 – Pin No. MNEMONIC DESCRIPTION 19 CLKIN Master clock for ADCs and digital signal processing. An external clock can be pro- vided at this logic input. Alternatively, a parallel resonant AT crystal can be connected across CLKIN and CLKOUT to provide a clock source for the ADE7754. The clock frequency for specified operation is 10MHz. Ceramic load capacitors of between 22pF and 33pF should be used with the gate oscillator circuit. Refer to crystal manufacturers data sheet for load capacitance requirements 20 CLKOUT A crystal can be connected across this pin and CLKIN as described above to provide a clock source for the ADE7754. The CLKOUT pin can drive one CMOS load when either an external clock is supplied at CLKIN or a crystal is being used. 21 CS Chip Select. Part of the four wire Serial Interface. This active low logic input allows the ADE7754 to share the serial bus with several other devices. See ADE7754 Serial Inter- face. . 22 D I N Data Input for the Serial Interface. Data is shifted in at this pin on the falling edge of SCLK—see ADE7754 Serial Interface. 23 SCLK Serial Clock Input for the synchronous serial interface. All Serial data transfers are synchronized to this clock—see ADE7754 Serial Interface. The SCLK has a Schmidt-trig- ger Input for use with a clock source which has a slow edge transition time, e.g., opto-isolator outputs etc. 24 DOUT Data Output for the Serial Interface. Data is shifted out at this pin on 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 ADE7754 Serial Interface. PIN CONFIGURATION SOIC Package TOP VIEW (Not to Scale) ADE7754 REFIn/Out AGND ICN ICP IBN CF DGND DVDD AVDD IBP IAN IAP VN VCP VBP VAP RESET CS SCLK DIN DOUT IRQ CLKIN CLKOUT 2 3 4 5 6 7 8 9 10 11 12 1 24 23 22 21 20 19 18 17 16 15 14 13 |
类似零件编号 - ADE7754AR |
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类似说明 - ADE7754AR |
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