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AD7720 Datasheet(PDF) 10 Page - Analog Devices |
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AD7720 Datasheet(HTML) 10 Page - Analog Devices |
10 / 17 page AD7720 –9– REV. 0 –10 –20 –30 –40 –50 –60 –70 –80 –90 –100 –110 –120 –130 0 0 6.25 FREQUENCY – MHz Figure 15. Modulator Output (0 Hz to MCLK/2) 0 –154 –20 –80 –100 –120 –140 –40 –60 0E+0 10E+3 20E+3 30E+3 40E+3 50E+3 60E+3 70E+3 80E+3 98E+3 CLKIN = 12.5MHz SNR = 90.1dB S/(N+D) = 89.2dB SFDR = –99.5dB THD = –96.6dB 2ND = –100.9dB 3RD = –106.0dB 4TH = –99.5dB 90E+3 Figure 16. 16K Point FFT 0 –154 –20 –80 –100 –120 –140 –40 –60 0E+0 10E+3 20E+3 30E+3 40E+3 50E+3 60E+3 70E+3 80E+3 96E+3 90E+3 XTAL = 12.288MHz SNR = 89.0dB S/(N+D) = 87.8dB SFDR = –94.3dB THD = –93.8dB 2ND = –94.3dB 3RD = –108.5dB 4TH = –105.7dB Figure 17. 16K Point FFT –10 –20 –30 –40 –50 –60 –70 –80 –90 –100 –110 –120 –130 0 0 393.295 kHz FREQUENCY – kHz Figure 18. Modulator Output (0 to 393.295 kHz) 0 –154 –20 –80 –100 –120 –140 –40 –60 0E+0 10E+3 20E+3 30E+3 40E+3 50E+3 60E+3 70E+3 80E+3 98E+3 AIN = 90kHz CLKIN = 12.5 MHz SNR = 89.6dB S/(N+D) = 89.6dB SFDR = –108.0dB 90E+3 Figure 19. 16K Point FFT 0 –154 –20 –80 –100 –120 –140 –40 –60 0E+0 10E+3 20E+3 30E+3 40E+3 50E+3 60E+3 70E+3 80E+3 96E+3 AIN = 90kHz XTAL = 12.288MHz SNR = 88.1dB S/(N+D) = 88.1dB SFDR = –103.7dB 90E+3 Figure 20. 16K Point FFT CODE 1.0 0.8 –1.0 0 20000 65535 40000 –0.4 –0.8 –0.6 0 –0.2 0.6 0.2 0.4 Figure 14. Integral Nonlinearity Error |
Similar Part No. - AD7720_17 |
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Similar Description - AD7720_17 |
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