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AD9268 数据表(PDF) 21 Page - Analog Devices |
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AD9268 数据表(HTML) 21 Page - Analog Devices |
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21 / 44 page ![]() AD9268 Rev. A | Page 21 of 44 0 –20 –40 –60 –80 –100 –120 –140 0 10 2030 4050 60 FREQUENCY (MHz) 125MSPS 2.4MHz @ –1dBFS SNR = 77.7dB (78.7dBFS) SFDR = 90dBc SECOND HARMONIC THIRD HARMONIC Figure 32. AD9268-125 Single-Tone FFT with fIN = 2.4 MHz 0 –20 –40 –60 –80 –100 –120 –140 0 10 2030 4050 60 FREQUENCY (MHz) 125MSPS 30.3MHz @ –1dBFS SNR = 77.4dB (78.4dBFS) SFDR = 91.2dBc SECOND HARMONIC THIRD HARMONIC Figure 33. AD9268-125 Single-Tone FFT with fIN = 30.3 MHz 0 –20 –40 –60 –80 –100 –120 –140 0 10 2030 4050 60 FREQUENCY (MHz) 125MSPS 70.1MHz @ –1dBFS SNR = 77.2dB (78.2dBFS) SFDR = 87.8dBc SECOND HARMONIC THIRD HARMONIC Figure 34. AD9268-125 Single-Tone FFT with fIN = 70.1 MHz 0 –20 –40 –60 –80 –100 –120 –140 0 10 2030 4050 60 FREQUENCY (MHz) 125MSPS 140.1MHz @ –1dBFS SNR = 76.0dB (77.0dBFS) SFDR = 84.0dBc SECOND HARMONIC THIRD HARMONIC Figure 35. AD9268-125 Single-Tone FFT with fIN = 140.1 MHz 0 –20 –40 –60 –80 –100 –120 –140 0 10 2030 4050 60 FREQUENCY (MHz) 125MSPS 200.3MHz @ –1dBFS SNR = 74.7dB (75.7dBFS) SFDR = 80dBc SECOND HARMONIC THIRD HARMONIC Figure 36. AD9268-125 Single-Tone FFT with fIN = 200.3 MHz 0 –20 –40 –60 –80 –100 –120 –140 0 10 2030 4050 60 FREQUENCY (MHz) 125MSPS 220.1MHz @ –1dBFS SNR = 74.3dB (75.3dBFS) SFDR = 78.5dBc SECOND HARMONIC THIRD HARMONIC Figure 37. AD9268-125 Single-Tone FFT with fIN = 220.1 MHz |
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