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AD9739ABBCZ Datasheet(PDF) 10 Page - Analog Devices |
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AD9739ABBCZ Datasheet(HTML) 10 Page - Analog Devices |
10 / 64 page AD9737A/AD9739A Data Sheet Rev. | Page 10 of 64 A B C D E F G H J K L M N P 14 13 12 11 10 6 3 2 1 9 5 4 IRQ CS SCLK RESET SDIO SDO 7 8 I120 VREF AD9737A Figure 7. AD9737A Analog I/O and SPI Control Pins (Top View) Table 7. AD9737A Pin Function Descriptions Pin No. Mnemonic Description C1, C2, D1, D2, E1, E2, E3, E4 VDDC 1.8 V Clock Supply Input. A1, A2, A3, A4, A5, B1, B2, B3, B4, B5, C4, C5, D4, D5 VSSC Clock Supply Ground. A10, A11, B10, B11, C10, C11, D10, D11 VDDA 3.3 V Analog Supply Input. A12, A13, B12, B13, C12, C13, D12, D13, VSSA Analog Supply Ground. A6, A9, B6, B9, C6, C9, D6, D9, E11, E12, E13, E14, F1, F2, F3, F4, F11, F12 VSSA Shield Analog Supply Ground Shield. Tie to VSSA at the DAC. A14 NC Do not connect to this pin. A7, B7, C7, D7 IOUTN DAC Negative Current Output Source. A8, B8, C8, D8 IOUTP DAC Positive Current Output Source. B14 I120 Nominal 1.2 V Reference. Tie to analog ground via a 10 kΩ resistor to generate a 120 µA reference current. C14 VREF Voltage Reference Input/Output. Decouple to VSSA with a 1 nF capacitor. D14 NC Factory Test Pin. Do not connect to this pin. C3, D3 DACCLK_N/DACCLK_P Negative/Positive DAC Clock Input (DACCLK). F13 IRQ Interrupt Request Open Drain Output. Active high. Pull up to VDD33 with a 10 kΩ resistor. F14 RESET Reset Input. Active high. Tie to VSS if unused. G13 CS Serial Port Enable Input. G14 SDIO Serial Port Data Input/Output. H13 SCLK Serial Port Clock Input. H14 SDO Serial Port Data Output. J3, J4, J11, J12 VDD33 3.3 V Digital Supply Input. G1, G2, G3, G4, G11, G12 VDD 1.8 V Digital Supply Input. H1, H2, H3, H4, H11, H12, K3, K4, K11, K12 VSS Digital Supply Ground. J1, J2 NC Differential resistor of 200 Ω exists between J1 and J2. Do not connect to this pin. K1, K2 NC Differential resistor of 100 Ω exists between K1 and K2. Do not connect to this pin. J13, J14 DCO_P/DCO_N Positive/Negative Data Clock Output (DCO). K13, K14 DCI_P/DCI_N Positive/Negative Data Clock Input (DCI). C |
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