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AD9683 Arkusz danych(PDF) 17 Page - Analog Devices |
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AD9683 Arkusz danych(HTML) 17 Page - Analog Devices |
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17 / 45 page ![]() AD9683 Data Sheet Rev. D | Page 16 of 44 –140 –120 –100 –80 –60 –40 –20 0 0 25 50 75 100 125 FREQUENCY (MHz) THIRD HARMONIC 250MSPS 305.1MHz AT –1dBFS SNR = 67.5dB (68.5dBFS) SFDR = 85dBc SECOND HARMONIC Figure 23. AD9683-250 Single-Tone FFT with fIN = 305.1 MHz 0 20 40 60 80 100 120 –100 –90 –80 –70 –60 –50 –40 –30 –20 –10 0 INPUT AMPLITUDE (dBFS) SNR (dBFS) SNR (dBc) SFDR (dBc) SFDR (dBFS) Figure 24. AD9683-250 Single-Tone SNR/SFDR vs. Input Amplitude (AIN) with fIN = 185.1 MHz 60 65 70 75 80 85 90 95 100 10 45 80 115 150 185 220 255 290 325 360 395 430 465 500 FREQUENCY (MHz) SFDR (dBc) SNR (dBFS) Figure 25. AD9683-250 Single-Tone SNR/SFDR vs. Input Frequency (fIN) 60 65 70 75 80 85 90 95 100 10 45 80 115 150 185 220 255 290 325 360 395 430 465 500 FREQUENCY (MHz) SFDR (dBc) SNR (dBFS) Figure 26. AD9683-250 Single-Tone SNR/SFDR vs. Input Frequency (fIN), RFCLK = 1.0 GHz with Divide by 4 (Address 0x09 = 0x21) –120 –100 –80 –60 –40 –20 0 –90.0 –78.5 –67.0 –55.5 –44.0 –32.5 –21.0 –9.5 INPUT AMPLITUDE (dBFS) IMD3 (dBc) SFDR (dBc) SFDR (dBFS) IMD3 (dBFS) Figure 27. AD9683-250 Two-Tone SFDR/IMD3 vs. Input Amplitude (AIN) with fIN1 = 89.12 MHz, fIN2 = 92.12 MHz, fS = 250 MSPS –120 –100 –80 –60 –40 –20 0 –90.0 –78.5 –67.0 –55.5 –44.0 –32.5 –21.0 –9.5 INPUT AMPLITUDE (dBFS) SFDR (dBc) IMD3 (dBc) SFDR (dBFS) IMD3 (dBFS) Figure 28. AD9683-250 Two-Tone SFDR/IMD3 vs. Input Amplitude (AIN) with fIN1 = 184.12 MHz, fIN2 = 187.12 MHz, fS = 250 MSPS |
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