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AD9864 データシート(PDF) 12 Page - Analog Devices |
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AD9864 データシート(HTML) 12 Page - Analog Devices |
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12 / 48 page ![]() Data Sheet AD9864 Rev. A | Page 11 of 47 VDDI = VDDF = VDDA = VDDC = VDDL = VDDH = 3.0 V , VDDQ = VDDP = 2.7 V to 5.5 V, fCLK = 18 MSPS, fIF = 109.65 MHz, fLO = 107.4 MHz, fREF = 16.8 MHz, TA=25 Co, LO and CLK Synthesizer Disabled, unless otherwise noted. CHANNEL BANDWIDTH (kHz) 10.0 10 7.5 1000 100 9.5 9.0 8.5 8.0 24-BIT DATA 16-BIT DATA 16-BIT DATA WITH DVGA ENABLED Figure 15. Noise Figure vs. Bandwidth (Minimum Attenuation, fCLK = 26 MSPS) VGA ATTENUATION (dB) 14 0 7 12 6 9 3 13 12 11 10 9 8 BW = 15kHz (K = 0, M = 9) BW = 75kHz (K = 0, M = 1) BW = 50kHz (K = 0, M = 2) Figure 16. Noise Figure vs. VGA Attenuation (fCLK = 18 MSPS) IFIN (dB) –45 –130 –30 –40 –50 –60 –70 –80 –90 –100 –110 –120 –42 –39 –36 –33 –30 –27 –24 PIN –5 –30 –10 –15 –20 –25 –40 –35 –45 IMD Figure 17. IMD vs. IFIN (fCLK = 13 MSPS) VGA ATTENUATION (dB) 11.5 0 7.0 12 6 9 3 11.0 10.5 10.0 9.5 9.0 8.5 8.0 7.5 BW = 6.78kHz (K = 0, M = 15) BW = 12.04kHz (K = 0, M = 8) BW = 27.08kHz (K = 0, M = 3) Figure 18. Noise Figure vs. VGA Attenuation (fCLK = 13 MSPS) VGA ATTENUATION (dB) 14 0 7 12 6 9 3 13 12 11 10 9 8 BW = 27.08kHz (K = 1, M = 9) BW = 90.28kHz (K = 1, M = 2) BW = 135.42kHz (K = 1, M = 1) Figure 19. Noise Figure vs. VGA Attenuation (fCLK = 26 MSPS) IFIN (dBm) –45 –130 –30 –40 –50 –60 –70 –80 –90 –100 –110 –120 –42 –39 –36 –33 –30 –27 –24 PIN –5 –30 –10 –15 –20 –25 –40 –35 –45 IMD Figure 20. IMD vs. IFIN (fCLK = 18 MSPS) |
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