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AD9237 数据表(PDF) 13 Page - Analog Devices |
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AD9237 数据表(HTML) 13 Page - Analog Devices |
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13 / 28 page ![]() AD9237 Rev. 0 | Page 13 of 28 FREQUENCY (MHz) 0 –20 –40 –60 –80 –100 –120 0 30 32.5 25 20 15 10 5 SNR = 67.0dBFS SFDR = 87.8dBFS Figure 20. AD9237-65 Two-Tone FFT, fIN1 = 45 MHz, fIN2 = 46 MHz FREQUENCY (MHz) 0 –20 –40 –60 –80 –100 –120 020 15 10 5 SNR = 67.2dBFS SFDR = 88.3dBFS 25 20 15 10 5 Figure 21. AD9237-40 Two-Tone FFT fIN1 = 45 MHz, fIN2 = 46 MHz FREQUENCY (MHz) 0 –20 –40 –60 –80 –100 –120 030 SNR = 66.9dBFS SFDR = 84.1dBFS Figure 22. AD9237-65 Two-Tone FFT, fIN1 = 69 MHz, fIN2 = 70 MHz SFDR dBFS SFDR dBc SNR dBc INPUT AMPLITUDE (AIN) 100 30 40 50 60 70 80 90 –30 –10 –6.5 –15 –20 –25 SNR dBFS Figure 23. AD9237-65 Two-Tone SNR/SFDR , vs. Analog Input with fIN1 = 45 MHz, fIN2 = 46 MHz SFDR dBFS SFDR dBc SNR dBc INPUT AMPLITUDE (AIN) 100 30 40 50 60 70 80 90 –30 –10 –6.5 –15 –20 –25 SNR dBFS Figure 24. AD9237-40 Two-Tone SNR/SFDR , vs. Analog Input with fIN1 = 45 MHz, fIN2 = 46 MHz SFDR dBFS SFDR dBc SNR dBc INPUT AMPLITUDE (AIN) 100 30 40 50 60 70 80 90 –30 –10 –6.5 –15 –20 –25 SNR dBFS Figure 25. AD9237-65 Two-Tone SNR/SFDR vs. Analog Input with fIN1 = 69 MHz, fIN2 = 70 MHz |
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