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AD9776-EB датащи(PDF) 22 Page - Analog Devices |
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AD9776-EB датащи(HTML) 22 Page - Analog Devices |
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22 / 56 page ![]() AD9776/AD9778/AD9779 Rev. A | Page 22 of 56 0.4 0 4096 CODE –0.4 512 1024 2560 2048 1536 3072 3584 0.3 0.2 0.1 0 –0.1 –0.2 –0.3 Figure 44. AD9776 Typical INL 0.20 0 4096 CODE 2048 –0.20 512 1024 1536 2560 3072 3584 0.15 0.10 0.05 0 –0.05 –0.10 –0.15 Figure 45. AD9776 Typical DNL 100 50 0 400 fOUT (MHz) 40 80 120 160 200 240 280 320 360 4 × 200MSPS 4 × 100MSPS 4 × 150MSPS 95 90 85 80 75 70 65 60 55 Figure 46. AD9776 IMD, 4× Interpolation 100 50 0 100 fOUT (MHz) 90 80 70 60 20 40 60 80 fDATA = 250MSPS fDATA = 200MSPS fDATA = 160MSPS Figure 47. AD9776 In-Band SFDR, 2× Interpolation –90 0 250 FOUT (MHz) –55 25 50 75 100 125 150 175 200 225 1ST ADJ CHAN 2ND ADJ CHAN 3RD ADJ CHAN –60 –65 –70 –75 –80 –85 Figure 48. AD9776 ACLR, fDATA = 122.88 MSPS, 4× Interpolation, fDAC/4 Modulation SPAN 50MHz SWEEP 162.2ms (601 pts) VBW 300kHz CENTER 143.88MHz *RES BW 30kHz RMS RESULTS CARRIER POWER –12.67dBm/ 3.84000MHz FREQ OFFSET 5.000MHz 10.00MHz 15.00MHz REF BW 3.884MHz 3.840MHz 3.840MHz dBc –75.00 –78.05 –77.73 dBm –87.67 –90.73 –90.41 LOWER dBc –75.30 –77.99 –77.50 dBm –87.97 –90.66 –90.17 UPPER REF –25.29dBm *AVG Log 10dB/ PAVG 10 W1 S2 *ATTEN 4dB Figure 49. AD9776, Single Carrier WCDMA, 4× Interpolation, fDATA = 122.88 MSPS, Amplitude = −3 dBFS |
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