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AD9861 Datasheet(PDF) 8 Page - Analog Devices |
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AD9861 Datasheet(HTML) 8 Page - Analog Devices |
8 / 52 page AD9861 Rev. 0 | Page 8 of 52 PIN CONFIGURATION AND PIN FUNCTION DESCRIPTIONS 03606-0-019 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 64 63 62 61 60 59 58 57 56 55 54 53 52 51 50 49 SPI_DIO 1 SPI_CLK 2 SPI_SDO/AUX_SPI_SDO 3 ADC_LO_PWR/AUX_SPI_CS 4 DVDD 5 DVSS 6 AVDD 7 IOUT–A 8 IOUT+A 9 AGND 10 REFIO 11 FSADJ 12 AGND 13 IOUT+B 14 IOUT–B 15 AVDD 16 CLKIN 48 AUXADC_REF 47 RESET 46 AUX_DACC/AUX_ADCB 45 L0 44 L1 43 L2 42 L3 41 L4 40 L5 39 L6 38 L7 37 L8 36 L9 35 AUX_SPI_CLK 34 IFACE1 33 AD9861 TOP VIEW (Not to Scale) 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/AUXSPI_SDO (FD/HD) SPI: 4-Wire Serial Port Data Output/Data Output Pin for AuxSPI. No SPI: Configures Full-Duplex or Half-Duplex Mode. 4 ADC_LO_PWR/AUX_SPI_CS ADC Low Power Mode Enable. Defined at power-up. CS for AuxSPI. 5, 31 DVDD Digital Supply. 6, 32 DVSS 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. SPI: Buffered CLKIN. Can be configured as system clock output. 17 IFACE2 (10/20) No SPI: For FD: Buffered CLKIN; For HD20 or HD10 : 10/20 Configuration Pin. 18 IFACE3 Clock Output. 19–28 U9–U0 Upper Data Bit 9 to Upper Data Bit 0. 29 AUX1 Configurable as either AuxADC_A2 or AuxDAC_A. 30 AUX2 Configurable as either AuxADC_A1 or AuxDAC_B. SPI: For FD: TxSYNC; For HD20, HD10, or Clone: Tx/Rx. 33 IFACE1 No SPI: FD >> TxSYNC; HD20 or HD10: Tx/Rx. |
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