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AD9246BCPZ-80 데이터시트(PDF) 9 Page - Analog Devices |
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AD9246BCPZ-80 데이터시트(HTML) 9 Page - Analog Devices |
9 / 44 page AD9246 Rev. A | Page 9 of 44 PIN CONFIGURATION AND FUNCTION DESCRIPTIONS 1 2 3 4 5 6 7 8 9 10 11 12 D2 D3 D4 D5 D6 D7 DRGND DRVDD D8 D9 D10 D11 RBIAS CML AVDD AGND VIN– VIN+ AGND REFT REFB VREF SENSE 35 PDWN 36 34 33 32 31 30 29 28 27 26 25 AD9246 TOP VIEW (Not to Scale) PIN 1 INDICATOR Figure 3. Pin Configuration Table 7. Pin Function Description Pin No. Mnemonic Description 0, 21, 23, 29, 32, 37, 41 AGND Analog Ground. (Pin 0 is the exposed thermal pad on the bottom of the package.) 45, 46, 1 to 6, 9 to 14 D0 (LSB) to D13 (MSB) Data Output Bits. 7, 16, 47 DRGND Digital Output Ground. 8, 17, 48 DRVDD Digital Output Driver Supply (1.8 V to 3.3 V). 15 OR Out-of-Range Indicator. 18 SDIO/DCS Serial Port Interface (SPI)® Data Input/Output (Serial Port Mode); Duty Cycle Stabilizer Select (External Pin Mode). See Table 10. 19 SCLK/DFS Serial Port Interface Clock (Serial Port Mode); Data Format Select Pin (External Pin Mode). 20 CSB Serial Port Interface Chip Select (Active Low). See Table 10. 22, 24, 33, 40, 42 AVDD Analog Power Supply. 25 SENSE Reference Mode Selection. See Table 9. 26 VREF Voltage Reference Input/Output. 27 REFB Differential Reference (−). 28 REFT Differential Reference (+). 30 VIN+ Analog Input Pin (+). 31 VIN– Analog Input Pin (−). 34 CML Common-Mode Level Bias Output. 35 RBIAS External Bias Resistor Connection. A 10 kΩ resistor must be connected between this pin and analog ground (AGND). 36 PDWN Power-Down Function Select. 38 CLK+ Clock Input (+). 39 CLK– Clock Input (−). 43 OEB Output Enable (Active Low). 44 DCO Data Clock Output. |
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