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AD9239 データシート(PDF) 13 Page - Analog Devices |
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AD9239 データシート(HTML) 13 Page - Analog Devices |
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13 / 40 page ![]() AD9239 Rev. 0 | Page 13 of 40 100 90 80 70 60 50 40 30 20 10 0 –90 –80 –70 –60 –50 –40 –30 –20 –10 0 ANALOG INPUT LEVEL (dBFS) SFDR (dBFS) SFDR (dB) SNR (dBFS) SNR (dB) Figure 16. SNR/SFDR vs. Analog Input Level, fIN = 84.3 MHz, fSAMPLE = 250 MSPS 0 –20 –40 –60 –80 –100 –120 0 10 2030 40 5060 70 80 FREQUENCY (MHz) AIN1 AND AIN2 = –7.0dBFS SFDR = 77.26dBc IMD2 = –86.55dBc IMD3 = –77.26dBc Figure 17. Two-Tone 32k FFT with fIN1 = 140.2 MHz and fIN2 = 141.3 MHz, fSAMPLE = 170 MSPS 0 –20 –40 –60 –80 –100 –120 0 20 40 60 80 100 FREQUENCY (MHz) AIN1 AND AIN2 = –7.0dBFS SFDR = 75.44dBc IMD2 = –78.34dBc IMD3 = –75.44dBc Figure 18. Two-Tone 32k FFT with fIN1 = 140.2 MHz and fIN2 = 141.3 MHz, fSAMPLE = 210 MSPS 0 –20 –40 –60 –80 –100 –120 0 20 40 60 80 100 FREQUENCY (MHz) AIN1 AND AIN2 = –7.0dBFS SFDR = 76.88dBc IMD2 = –78.75dBc IMD3 = –78.68dBc Figure 19. Two-Tone 32k FFT with fIN1 = 170.2 MHz and fIN2 = 171.3 MHz, fSAMPLE = 2 10 MSPS 0 –20 –40 –60 –80 –100 –120 0 20 40 60 80 100 120 FREQUENCY (MHz) AIN1 AND AIN2 = –7.0dBFS SFDR = 74.48dBc IMD2 = –76.10dBc IMD3 = –74.48dBc Figure 20. Two-Tone 32k FFT with fIN1 = 140.2 MHz and fIN2 = 141.3 MHz, fSAMPLE = 250 MSPS 0 –20 –40 –60 –80 –100 –120 0 20 40 60 80 100 120 FREQUENCY (MHz) AIN1 AND AIN2 = –7.0dBFS SFDR = 74.29dBc IMD2 = –76.51dBc IMD3 = –74.30dBc Figure 21. Two-Tone 32k FFT with fIN1 = 170.2 MHz and fIN2 = 171.3 MHz, fSAMPLE = 250 MSPS |
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