Datenblatt-Suchmaschine für elektronische Bauteile |
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AD7762 Datenblatt(PDF) 7 Page - Analog Devices |
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AD7762 Datenblatt(HTML) 7 Page - Analog Devices |
7 / 28 page AD7762 Rev. 0 | Page 7 of 28 PIN CONFIGURATION AND FUNCTION DESCRIPTIONS 64 63 62 61 60 59 58 57 56 55 54 53 52 51 50 49 47 DB13 46 DB14 45 DB15 42 DGND 43 DGND 44 VDRIVE 48 DB12 41 DVDD 40 CS 39 RD/WR 37 RESET 36 SYNC 35 DGND 34 AGND1 33 AVDD1 38 DRDY 2 MCLKGND 3 MCLK 4 AVDD2 7 AGND1 6 AVDD1 5 AGND2 1 DGND 8 DECAPA 9 REFGND 10 VREF+ 12 AVDD4 13 AGND2 14 AVDD2 15 AVDD2 16 AGND2 11 AGND4 PIN 1 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 AD7762 TOP VIEW (Not to Scale) Figure 4. 64-Lead TQFP Pin Configuration Table 5. Pin Function Descriptions Pin No. Mnemonic Description 6, 33 AVDD1 2.5 V Power Supply for Modulator. These pins should be decoupled to AGND1 with 100 nF and 10 μF capacitors on each pin. 4, 14, 15, 27 AVDD2 5 V Power Supply. These pins should be decoupled to AGND2 with 100 nF capacitors on each of Pin 4, Pin 14, and Pin 15. Pin 27 should be connected to Pin 14 via a 15 nH inductor. 24 AVDD3 3.3 V to 5 V Power Supply for Differential Amplifier. These pins should be decoupled to AGND3 with a 100 nF capacitor. 12 AVDD4 3.3 V to 5 V Power Supply for Reference Buffer. This pin should be decoupled to AGND4 with a 10 nF capacitor in series with a 10 Ω resistor. 7, 34 AGND1 Power Supply Ground for Analog Circuitry Powered by AVDD1. 5, 13, 16, 18, 28 AGND2 Power Supply Ground for Analog Circuitry Powered by AVDD2. 23, 29, 31, 32 AGND3 Power Supply Ground for Analog Circuitry Powered by AVDD3. 11 AGND4 Power Supply Ground for Analog Circuitry Powered by AVDD4. 9 REFGND Reference Ground. Ground connection for the reference voltage. 41 DVDD 2.5 V Power Supply for Digital Circuitry and FIR Filter. This pin should be decoupled to DGND with a 100 nF capacitor. 44, 63 VDRIVE Logic Power Supply Input, 1.8 V to 2.5 V. The voltage supplied at these pins determines the operating voltage of the logic interface. Both these pins must be connected together and tied to the same supply. Each pin should also be decoupled to DGND with a100 nF capacitor. DGND Ground Reference for Digital Circuitry. 1, 35, 42, 43, 53, 62, 64 19 VINA+ Positive Input to Differential Amplifier. 20 VINA− Negative Input to Differential Amplifier. 21 VOUTA− Negative Output from Differential Amplifier. 22 VOUTA+ Positive Output from Differential Amplifier. 25 VIN+ Positive Input to the Modulator. 26 VIN− Negative Input to the Modulator. 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. |
Ähnliche Teilenummer - AD7762 |
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Ähnliche Beschreibung - AD7762 |
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