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ADRF6702ACPZ-R7 数据表(PDF) 13 Page - Analog Devices |
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ADRF6702ACPZ-R7 数据表(HTML) 13 Page - Analog Devices |
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13 / 36 page ![]() Data Sheet ADRF6702 Rev. B | Page 13 of 36 1550 1600 1650 1700 1750 1800 1850 1900 1950 2000 2050 2100 2150 LO FREQUENCY (MHz) –120 –115 –110 –105 –100 –95 –90 –85 –80 –75 –70 TA =–40°C TA =+25°C TA =+85°C 2 × PFD FREQUENCY 4 × PFD FREQUENCY Figure 22. PLL Reference Spurs vs. LO Frequency (2× PFD and 4× PFD) at Modulator Output TA =–40°C TA =+25°C TA =+85°C 1550 1600 1650 1700 1750 1800 1850 1900 1950 2000 2050 2100 2150 LO FREQUENCY (MHz) –80 –85 –70 –75 –90 –95 –100 –105 –110 –115 –120 0.5 × PFD FREQUENCY 1 × PFD FREQUENCY 3 × PFD FREQUENCY Figure 23. PLL Reference Spurs vs. LO Frequency (0.5× PFD, 1× PFD, and 3× PFD) at Modulator Output 2.8 1550 1600 1650 1700 1750 1800 1850 1900 1950 2000 2050 2100 2150 LO FREQUENCY (MHz) 2.6 2.4 2.2 2.0 1.8 1.6 1.4 1.2 1.0 TA =–40°C TA =+25°C TA =+85°C Figure 24. VTUNE vs. LO Frequency and Temperature –120 –115 –110 –105 –100 –95 –90 –85 –80 –75 –70 LO FREQUENCY (MHz) 1550 1600 1650 1700 1750 1800 1850 1900 1950 2000 2050 2100 2150 2×PFDFREQUENCY 4×PFDFREQUENCY TA =–40°C TA =+25°C TA =+85°C Figure 25. PLL Reference Spurs vs. LO Frequency (2× PFD and 4× PFD) at LO Output –120 –115 –110 –105 –100 –95 –90 –85 –80 –75 –70 LO FREQUENCY (MHz) 1550 1600 1650 1700 1750 1800 1850 1900 1950 2000 2050 2100 2150 1×PFDFREQUENCY 3×PFDFREQUENCY TA =–40°C TA =+25°C TA =+85°C 0.5 × PFD FREQUENCY Figure 26. PLL Reference Spurs vs. LO Frequency (0.5× PFD, 1× PFD, and 3× PFD) at LO Output 1k 10k 100k 1M 10M 0 –20 –40 –60 –80 –100 –120 –140 –160 –180 FREQUENCY (Hz) LO = 1841.074MHz LO = 2140.48MHz LO = 1943.26MHz Figure 27. Open-Loop VCO Phase Noise at 1841.074 MHz, 1943.26 MHz, and 2140.48 MHz |
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