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AD9741 Datasheet(PDF) 10 Page - Analog Devices |
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AD9741 Datasheet(HTML) 10 Page - Analog Devices |
10 / 28 page AD9741/AD9743/AD9745/AD9746/AD9747 Rev. 0 | Page 10 of 28 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 CVDD18 CVSS CLKP CLKN CVSS CVDD18 DVSS DVDD18 P1D9 P1D8 P1D7 P1D6 P1D5 P1D4 P1D3 P1D2 17 P1D1 18 P1D0 54 53 52 51 50 49 48 47 46 45 44 43 42 41 40 39 38 37 FSADJ RESET CSB SCLK SDIO SDO DVSS DVDD18 NC NC NC NC NC NC P2D0 P2D1 P2D2 P2D3 NC = NO CONNECT PIN 1 INDICATOR AD9743 (TOP VIEW) Figure 3. AD9743 Pin Configuration Table 9. AD 9743 Pin Function Descriptions Pin No. Mnemonic Description 1, 6 CVDD18 Clock Supply Voltage (1.8 V). 2, 5 CVSS Clock Supply Common (0 V). 3 CLKP Differential DAC Clock Input. 4 CLKN Complementary Differential DAC Clock Input. 7, 28, 48 DVSS Digital Supply Common (0 V). 8, 47 DVDD18 Digital Core Supply Voltage (1.8 V). 9 to 18 P1D<9:0> Port 1 Data Bit Inputs. 19 to 24, 26, 30, 41 to 46 NC No Connect. 25 DCO Data Clock Output. Use to clock data source. 27 DVDD33 Digital I/O Supply Voltage (3.3 V). 29 IQSEL I/Q Framing Signal for Single-Port Mode Operation. 31 to 40 P2D<9:0> Port 2 Data Bit Inputs. 49 SDO Serial Peripheral Interface Data Output. 50 SDIO Serial Peripheral Interface Data Input and Optional Data Output. 51 SCLK Serial Peripheral Interface Clock Input. 52 CSB Serial Peripheral Interface Chip Select Input. Active low. 53 RESET Hardware Reset. Active high. 54 FSADJ Full-Scale Current Output Adjust. Connect a 10 kΩ resistor to AVSS. 55 REFIO Reference Input/Output. Connect a 0.1 μF capacitor to AVSS. 56, 57, 71, 72 AVDD33 Analog Supply Voltage (3.3 V). 58, 61, 64, 67, 70 AVSS Analog Supply Common (0 V). 59 IOUT2P DAC2 Current Output True. Sources full-scale current when input data bits are all 1. 60 IOUT2N DAC2 Current Output Complement. Sources full-scale current when data bits are all 0. 62 AUX2P Auxiliary DAC2 Default Current Output Pin. 63 AUX2N Auxiliary DAC2 Optional Output Pin. Enable through SPI. 65 AUX1N Auxiliary DAC1 Optional Output Pin. Enable through SPI. 66 AUX1P Auxiliary DAC1 Default Current Output Pin. 68 IOUT1N Complementary DAC1 Current Output. Sources full-scale current when data bits are all 0. 69 IOUT1P DAC1 Current Output. Sources full-scale current when data bits are all 1. EPAD AVSS Exposed Thermal Pad. Must be soldered to copper pour on top surface of PCB for mechanical stability and must be electrically tied to low impedance GND plane for low noise performance. |
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