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AD9786 Folha de dados(PDF) 17 Page - Analog Devices |
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AD9786 Folha de dados(HTML) 17 Page - Analog Devices |
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17 / 60 page ![]() AD9786 Rev. 0 | Page 17 of 60 ANALOG OUTPUT FREQUENCY (MHz) 160 0 20 40 60 120 140 80 100 –180 –140 –150 –145 –155 –160 –165 –170 –175 FDATA = 156MSPS, 1× INTERPOLATION FDATA = 156MSPS, 2× INTERPOLATION Figure 27. Noise Spectral Density vs. Analog Input Frequency, FDATA = 156 MSPS Interpolation = 2x FOUT (MHz) 150 0 25 50 75 100 125 –90 –60 –65 –70 –75 –80 –85 –6dBFS 0dBFS –3dBFS Figure 28. ACLR for First Adjacent Band vs. Frequency, FDATA = 61.44 MSPS, 4× Interpolation FOUT (MHz) 200 0 20 40 60 80 100 120 140 160 180 –90 –60 –65 –70 –75 –80 –85 –3dBFS 0dBFS –6dBFS Figure 29. ACLR for First Adjacent Band vs. Frequency, FDATA = 76.8 MSPS, 4× Interpolation 10 0 –10 –20 –30 –40 –50 –60 –70 –80 –90 –100 –110 START 100 kHz STOP 200 MHz 19.9 MHz/ 1MA 1 1AVG Figure 30. Two Tones around 23 MHz, FDATA = 200 MSPS, 2× Interpolation, Low-Pass Digital Filter Mode 10 0 –10 –20 –30 –40 –50 –60 –70 –80 –90 –100 –110 START 100 kHz STOP 200 MHz 19.9 MHz/ 1MA 1 1AVG Figure 31. Two Tones around 177 MHz, FDATA = 200 MSPS, 2× Interpolation, High-Pass Digital Filter Mode SPAN 43.84MHz SWEEP 142.2ms (601 pts) VBW 300kHz CENTER 51.44MHz *RES BW 30kHz RMS RESULTS CARRIER POWER –17.41dBm/ 3.84MHz FREQ OFFSET 5.000MHz 10.000MHz 15.000MHz 20.000MHz REF BW 3.840MHz 3.840MHz 3.840MHz 3.840MHz dBc 0.15 –74.24 –75.73 –75.67 dBm –17.26 –91.65 –93.14 –93.08 LOWER dBc –74.63 –75.67 –76.38 –75.75 dBm –92.05 –93.08 –93.79 –93.17 UPPER REF –29.82dBm *AVG Log 10dB/ PAVG 22 W1 S2 *ATTEN 6dB AVERAGE 103 Figure 32. ACLR for Two WCDMA Carriers at 51.44 MHz, FDATA = 61.44 MSPS, 4× Interpolation |
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