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AD9863 Datasheet(PDF) 9 Page - Analog Devices |
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AD9863 Datasheet(HTML) 9 Page - Analog Devices |
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9 / 41 page ![]() AD9863 Data Sheet Rev. B | Page 8 of 40 PIN CONFIGURATION AND FUNCTION DESCRIPTIONS SPI_DIO SPI_CLK SPI_SDO ADC_LO_PWR NOTES 1. EXPOSED PAD. THE EXPOSED PAD MUST BE SECURELY CONNECTED TO THE GROUND PLANE. DVDD DVSS AVDD IOUT–A IOUT+A AGND REFIO FSADJ AGND IOUT+B IOUT–B AVDD CLKIN1 CLKIN2 RESET L0 L1 L2 L3 L4 L5 L6 L7 L8 L9 L10 L11 IFACE1 AD9863 TOP VIEW (Not to Scale) 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33 Figure 3. Pin Configuration Table 8. Pin Function Descriptions Pin No. Name1 Description2,3 1 SPI_DIO (Interp1) SPI: Serial Port Data Input. No SPI: Tx Interpolation Pin, MSB. 2 SPI_CLK (Interp0) SPI: Serial Port Shift Clock. No SPI: Tx Interpolation Pin, LSB. 3 SPI_SDO (FD/HD) SPI: 4-Wire Serial Port Data Output. No SPI: Configures Full-Duplex or Half-Duplex Mode. 4 ADC_LO_PWR ADC Low Power Mode Enable. Defined at power-up. 5, 31 DVDD, DRVDD Digital Supply. 6, 32 DVSS, DRVDD Digital Ground. 7, 16, 50, 51, 61 AVDD Analog Supply. 8, 9 IOUT −A, IOUT+A DAC A Differential Output. 10, 13, 49, 53, 59 AGND, AVSS Analog Ground. 11 REFIO Tx DAC Band Gap Reference Decoupling Pin. 12 FSADJ Tx DAC Full-Scale Adjust Pin. 14, 15 IOUT+B, IOUT−B DAC B Differential Output. 17 IFACE2 (12/24) SPI: Buffered CLKIN. Can be configured as system clock output. No SPI: Buffered CLKIN for FD; 12/24 configuration pin for HD24 or HD12. 18 IFACE3 Clock Output. 19 to 30 U11 to U0 Upper Data Bit 11 to Upper Data Bit 0. 33 IFACE1 SPI: TxSYNC for FD; Tx/Rx for HD24, HD12, or clone. No SPI: FD >> TxSYNC; HD24 or HD12: Tx/Rx. Clone mode requires a serial port interface. 34 to 45 L11 to L0 Lower Data Bit 11 to Lower Data Bit 0. 46 RESET Chip Reset When Low. 47 CLKIN2 Clock Input 2. 48 CLKIN1 Clock Input 1. 52 REFB ADC Bottom Reference. 54, 55 VIN+B, VIN−B ADC B Differential Input. |
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