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AD9857/PCB 数据表(PDF) 38 Page - Analog Devices |
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AD9857/PCB 数据表(HTML) 38 Page - Analog Devices |
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38 / 41 page ![]() AD9857 Rev. C| Page 37 of 40 1 2 3 4 5 6 7 8 9 10 OUT_EN D0 D1 D2 D3 D4 D5 D6 D7 GND VCC Q0 Q1 Q2 Q3 Q4 Q5 Q6 Q7 CLOCK 20 19 18 17 16 15 14 13 12 11 U7 74HC574 DIFF_CLKEN AGND AVDD NC AGND PLL_FILTER AVDD AGND NC NC DAC_RSET DAC_BP AVDD AGND IOUT IOUT AGND AVDD AGND NC 1 2 3 4 5 6 7 8 9 10 OUT_EN D0 D1 D2 D3 D4 D5 D6 D7 GND 20 19 18 17 16 15 14 13 12 11 VCC Q0 Q1 Q2 Q3 Q4 Q5 Q6 Q7 CLOCK U1 74HC574 1A 1Y 2A 2Y 3A 3Y GND VCC 6A 6Y 5A 5Y 4A 4Y U2 SN74HC14 1 2 3 4 5 6 7 U3 74HC125 EN1 D1 Q1 EN2 D2 Q2 GND VCC EN4 D4 Q4 EN3 D3 Q3 1 2 3 4 5 6 7 14 13 12 11 10 9 8 RBE RBE 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 GND W12 CIC TEST POINT J8 GND AVDD C20 0.01 µF C19 0.01 µF R4 1.3k Ω W6 GND VCC DPD GND DVDD VCC GND GND VCC W1 VCC GND VCC W13 AD9857 U5 P1 PARALLEL PORT GND 14 13 12 11 10 9 8 DVDD DVDD R5 3.9k Ω R6 3.9k Ω W4 GND GND AVDD DVDD GND SDIO SDIO SYNCIO PS1 PSO CS SCLK D12 D12 D11 D11 D10 D10 D9 D9 D8 D8 D7 D7 J2 C25 22pF C26 56pF C27 68pF C28 47pF C22 33pF C23 15pF C24 5.6pF L1 68nH L2 100nH L3 120nH J4 2 1 3 4 J3 W3 W5 GND 82.5MHz ELLIPTIC LOW-PASS FILTER R7 50 Ω R9 50 Ω 5 6 GND TFORMCT W2 W11 GND VCC TxENABLE GND U10 R1 2000 Ω C1 0.01 µF R12 50 Ω GND J1 J6 J7 R2 50V R3 50 Ω R8 0 R10 0 CLOCK INPUT GND GND GND VCC U6 5 4 8 2 3 7 6 MC100LEVL16 D Q D Q RESET C2 0.1 µF C29 10 µF GND AVDD C3 0.1 µF C4 0.1 µF C5 0.1 µF C6 0.1 µF C7 0.1 µF C8 0.1 µF TB1 POWER CONNECTION GND AVDD DVDD VCC 123 4 GND W8 W10 W9 W7 C9 0.1 µF C30 10 µF GND VCC C10 0.1 µF C11 0.1 µF C12 0.1 µF C13 0.1 µF C14 0.1 µF C31 10 µF GND DVDD C15 0.1 µF C16 0.1 µF C17 0.1 µF D13 D13 1 D0 D0 21 22 D1 D1 19 D2 D2 18 D3 D3 17 D4 D4 16 D5 D5 15 D6 D6 14 DGND 13 DGND 12 DGND 11 DVDD 10 9 8 7 6 5 4 3 2 60 41 20 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 80 79 78 77 76 75 74 73 72 71 70 69 68 67 66 65 64 63 62 61 VCC Figure 37. Schematic of AD9857 Evaluation PCB |
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