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ADRF6704ACPZ-R7 数据表(PDF) 13 Page - Analog Devices |
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ADRF6704ACPZ-R7 数据表(HTML) 13 Page - Analog Devices |
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13 / 36 page ![]() Data Sheet ADRF6704 Rev. 0 | Page 13 of 36 –120 –115 –110 –105 –100 –95 –90 –85 –80 –75 –70 2500 2550 2600 2650 2700 2750 2800 2850 2900 LO FREQUENCY (MHz) 2× PFD FREQUENCY 4× PFD FREQUENCY –40°C +25°C +85°C Figure 22. PLL Reference Spurs vs. LO Frequency (2× PFD and 4× PFD) at Modulator Output –120 –115 –110 –105 –100 –95 –90 –85 –80 –75 –70 2500 2550 2600 2650 2700 2750 2800 2850 2900 LO FREQUENCY (MHz) 1× PFD FREQUENCY 3× PFD FREQUENCY 0.5× PFD FREQUENCY –40°C +25°C +85°C Figure 23. PLL Reference Spurs vs. LO Frequency (0.5× PFD, 1× PFD, and 3× PFD) at Modulator Output 1.0 1.2 1.4 1.6 1.8 2.0 2.2 2.4 2.6 2.8 2500 2550 2600 2650 2700 2750 2800 2850 2900 LO FREQUENCY (MHz) –40°C +25°C +85°C Figure 24. VTUNE vs. LO Frequency and Temperature –120 –115 –110 –105 –100 –95 –90 –85 –80 –75 –70 2500 2550 2600 2650 2700 2750 2800 2850 2900 LO FREQUENCY (MHz) 2× PFD FREQUENCY 4× PFD FREQUENCY –40°C +25°C +85°C Figure 25. PLL Reference Spurs vs. LO Frequency (2× PFD and 4× PFD) at LO Output LO FREQUENCY (MHz) –120 –115 –110 –105 –100 –95 –90 –85 –80 –75 –70 2500 2550 2600 2650 2700 2750 2800 2850 2900 0.5× PFD FREQUENCY 1× PFD FREQUENCY 3× PFD FREQUENCY –40°C +25°C +85°C Figure 26. PLL Reference Spurs vs. LO Frequency (0.5× PFD, 1× PFD, and 3× PFD) at LO Output –160 –140 –120 –100 –80 –60 –40 –20 0 1k 10k 100k 1M 10M FREQUENCY (Hz) LO = 2519.9MHz LO = 2702.7MHz LO = 2884.7MHz Figure 27. Open-Loop VCO Phase Noise at 2519.9 MHz, 2702.7 MHz, and 2884.7 MHz |
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