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AD9520-3/PCBZ датащи(PDF) 21 Page - Analog Devices |
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AD9520-3/PCBZ датащи(HTML) 21 Page - Analog Devices |
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21 / 84 page ![]() AD9520-3 Rev. 0 | Page 21 of 84 TYPICAL PERFORMANCE CHARACTERISTICS 350 300 250 200 150 100 0 500 1000 1500 2000 2500 3000 FREQUENCY (MHz) 3 CHANNELS—6 LVPECL 3 CHANNELS—3 LVPECL 2 CHANNELS—2 LVPECL 1 CHANNEL—1 LVPECL Figure 6. Total Current vs. Frequency, CLK-to-Output (PLL Off), LVPECL Outputs Terminated 50 Ω to VS_DRV − 2 V 240 220 200 180 160 140 120 100 80 0 50 100 150 200 250 FREQUENCY (MHz) 3 CHANNELS—6 CMOS 3 CHANNELS—3 CMOS 2 CHANNELS—2 CMOS 1 CHANNEL—1 CMOS Figure 7. Total Current vs. Frequency, CLK-to-Output (PLL Off), CMOS Outputs with 10 pF Load 70 65 60 55 50 45 40 35 30 25 1.7 1.8 1.9 2.0 2.1 2.2 2.3 VCO FREQUENCY (GHz) Figure 8. KVCO vs. VCO Frequency 5 4 3 2 1 0 03 3.0 2.5 2.0 1.5 1.0 0.5 VOLTAGE ON CP PIN (V) .5 PUMP UP PUMP DOWN Figure 9. Charge Pump Characteristics @ VCP = 3.3 V 5 4 3 2 1 0 05 4.0 3.0 4.5 3.5 2.5 2.0 1.5 1.0 0.5 VOLTAGE ON CP PIN (V) .0 PUMP DOWN PUMP UP Figure 10. Charge Pump Characteristics @ VCP = 5.0 V –140 –145 –150 –155 –160 –165 –170 0.1 1 100 10 PFD FREQUENCY (MHz) Figure 11. PFD Phase Noise Referred to PFD Input vs. PFD Frequency |
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