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AD7762 Arkusz danych(PDF) 9 Page - Analog Devices |
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AD7762 Arkusz danych(HTML) 9 Page - Analog Devices |
9 / 29 page AD7762 Data Sheet Rev. A | Page 8 of 28 Pin No. Mnemonic Description 10 VREF+ Reference Input. The input range of this pin is determined by the reference buffer supply voltage (AVDD4). See the Reference Voltage Filtering section for more details. 8 DECAPA Decoupling Pin. A 100 nF capacitor must be inserted between this pin and AGND1. 30 DECAPB Decoupling Pin. A 33 pF capacitor must be inserted between this pin and AGND3. 17 RBIAS Bias Current Setting Pin. A resistor must be inserted between this pin and AGND1. For more details, see the Bias Resistor Selection section. 45 to 52, 54 to 61 DB15 to DB8 DB7 to DB0 16-Bit Bidirectional Data Bus. These are three-state pins that are controlled by the CS pin and the RD/WR pin. The operating voltage for these pins is determined by the VDRIVE voltage. See the AD7762 Interface section for more details. 37 RESET A falling edge on this pin resets all internal digital circuitry and powers down the part. Holding this pin low keeps the AD7762 in a reset state. 3 MCLK Master Clock Input. A low jitter digital clock must be applied to this pin. The output data rate depends on the frequency of this clock. See the section Clocking the AD7762 for more details. 2 MCLKGND Master Clock Ground Sensing Pin. 36 SYNC Synchronization Input. A falling edge on this pin resets the internal filter. This can be used to synchronize multiple devices in a system. 39 RD/WR Read/Write Input. This pin, in conjunction with the chip select pin, is used to read and write data to and from the AD7762. If this pin is low when CS is low, a read takes place. If this pin is high and CS is low, a write occurs. See the AD7762 Interface section for more details. 38 DRDY Data Ready Output. Each time that new conversion data is available, an active low pulse, ½ ICLK period wide, is produced on this pin. See the AD7762 Interface section for more details. 40 CS Chip Select Input. Used in conjunction with the RD/WR pin to read and write data to and from the AD7762. See the AD7762 Interface section for more details. EPAD Exposed pad. Connect the exposed pad to AGNDx with six to eight vias. |
Podobny numer części - AD7762 |
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Podobny opis - AD7762 |
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