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ADRF6614ACPZ-R7 数据表(PDF) 26 Page - Analog Devices |
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ADRF6614ACPZ-R7 数据表(HTML) 26 Page - Analog Devices |
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26 / 61 page ![]() ADRF6614 Data Sheet Rev. 0 | Page 26 of 61 –170 –160 –150 –140 –130 –120 –110 –100 –90 –80 LO FREQUENCY (Hz) –40°C +25°C +85°C 50 kHz OFFSET 200 kHz OFFSET 1MHz OFFSET 40MHz OFFSET 1430 1630 1830 2030 2230 2430 2630 Figure 78. Integer Loop Filter Phase Noise vs. LO Frequency, Divide by Two Selected, Offset = 50 kHz, 200 kHz, 1 MHz, and 40 MHz –170 –160 –150 –140 –130 –100 –110 –120 –90 1525 1545 1540 1535 1530 LO FREQUENCY (MHz) –40°C +25°C +85°C 50kHz OFFSET 200kHz OFFSET 40MHz OFFSET 1MHz OFFSET Figure 79. VCO_4 GSM Loop Filter Phase Noise, Divide by Two Selected, Offset = 50 kHz, 200 kHz, 1 MHz, and 40 MHz –180 –60 –80 –100 –120 –140 –160 1668 1673 1678 1683 1688 1693 1698 1703 1708 LO FREQUENCY (MHz) –40°C +25°C +85°C 1kHz OFFSET 100kHz OFFSET 500kHz OFFSET 10MHz OFFSET Figure 80. VCO_5 GSM Loop Filter Phase Noise, Divide by Two Selected, Offset = 1 kHz, 100 kHz, 500 kHz, and 10 MHz 0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 2860 3360 3860 4360 4860 5360 VCO FREQUENCY (MHz) –40°C +25°C +85°C LO_DIV = ÷8 LO_DIV = ÷2 LO_DIV = ÷4 Figure 81. 10 kHz to 40 MHz Integrated Phase Noise vs. VCO Frequency, Divide by Two, Four, and Eight, Including Spurs 0 0.05 0.10 0.15 0.20 0.35 0.30 0.25 0.40 1525 1545 1540 1535 1530 LO FREQUENCY (MHz) –40°C +25°C +85°C Figure 82. VCO_4 10 kHz to 40 MHz Integrated Phase Noise vs. VCO Frequency, For Various Temperatures, Including Spurs –170 –80 –90 –100 –110 –120 –130 –140 –150 –160 1668 1673 1678 1683 1688 1693 1698 1703 1708 LO FREQUENCY (MHz) –40°C +25°C +85°C 50kHz OFFSET 200kHz OFFSET 1MHz OFFSET 40MHz OFFSET Figure 83. VCO_5 GSM Loop Filter Phase Noise, Divide by Two Selected, Offset = 50 kHz, 200 kHz, 1 MHz, and 40 MHz |
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