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AD9642 датащи(PDF) 15 Page - Analog Devices |
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AD9642 датащи(HTML) 15 Page - Analog Devices |
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15 / 29 page ![]() AD9642 Data Sheet 0 –140 0 25 50 75 100 125 FREQUENCY (MHz) –20 –40 –60 –80 –100 –120 250MSPS 90.1MHz @ –1dBFS SNR = 71dB (72dBFS) SFDR = 89dBc THIRD HARMONIC SECOND HARMONIC Figure 28. AD9642-250 Single-Tone FFT with fIN = 90.1 MHz 0 –140 0 25 50 75 100 125 FREQUENCY (MHz) –20 –40 –60 –80 –100 –120 250MSPS 185.1MHz @ –1dBFS SNR = 70.4dB (71.4dBFS) SFDR = 86dBc THIRD HARMONIC SECOND HARMONIC Figure 29. AD9642-250 Single-Tone FFT with fIN = 185.1 MHz –140 –120 –100 –80 –60 –40 –20 0 0 25 50 75 100 125 FREQUENCY (MHz) SECOND HARMONIC THIRD HARMONIC 250MSPS 220.1MHz @ 1.0dBFS SNR = 69.9dB (70.9dBFS) SFDR = 91dBc Figure 30. AD9642-250 Single-Tone FFT with fIN = 220.1 MHz 0 –140 0 25 50 75 100 125 FREQUENCY (MHz) –20 –40 –60 –80 –100 –120 250MSPS 305.1MHz @ –1dBFS SNR = 68.5dB (69.5dBFS) SFDR = 82dBc THIRD HARMONIC SECOND HARMONIC Figure 31. AD9642-250 Single-Tone FFT with fIN = 305.1 MHz 120 100 80 60 40 20 0 –100 –90 –80 –70 –60 –50 –40 –30 –20 –10 0 INPUT AMPLITUDE (dBFS) SNR (dBFS) SFDR (dBFS) SFDR (dBc) SNR (dBc) Figure 32. AD9642-250 Single-Tone SNR/SFDR vs. Input Amplitude (AIN) with fIN = 90.1 MHz, fS = 250 MSPS 100 95 90 85 80 75 70 65 60 FREQUENCY (MHz) SFDR (dBFS) SNR (dBc) Figure 33. AD9642-250 Single-Tone SNR/SFDR vs. Input Frequency (fIN), fS = 250 MSPS Rev. B | Page 14 of 28 |
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