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AD9522-1/PCBZ датащи(PDF) 20 Page - Analog Devices |
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AD9522-1/PCBZ датащи(HTML) 20 Page - Analog Devices |
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20 / 84 page ![]() AD9522-1 Rev. 0 | Page 20 of 84 TYPICAL PERFORMANCE CHARACTERISTICS 275 250 225 200 175 150 125 100 75 0 200 400 600 800 1000 FREQUENCY (MHz) 3 CHANNELS—6 LVDS 3 CHANNELS—3 LVDS 2 CHANNELS—2 LVDS 1 CHANNEL—1 LVDS Figure 6. Total Current vs. Frequency, CLK-to-Output (PLL Off), Channel and VCO Divider Bypassed, LVDS Outputs Terminated 100 Ω Across Differential Pair 240 220 200 180 160 140 120 100 80 0 50 100 150 200 250 FREQUENCY (MHz) 2 CHANNELS—8 CMOS 2 CHANNELS—2 CMOS 1 CHANNEL—2 CMOS 1 CHANNEL—1 CMOS Figure 7. Total Current vs. Frequency, CLK-to-Output (PLL Off), Channel and VCO Divider Bypassed, CMOS Outputs with 10 pF Load 65 35 40 45 50 55 60 2.3 2.7 2.6 2.5 2.4 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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