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AD9726-EBZ датащи(PDF) 13 Page - Analog Devices |
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AD9726-EBZ датащи(HTML) 13 Page - Analog Devices |
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13 / 24 page ![]() AD9726 Rev. B | Page 13 of 24 A 1AP EXT 0 –10 –20 –30 –40 –60 –50 –70 –90 –80 –100 –120 –110 1AVG STOP 7.5MHz 675kHz START 750kHz REF LVL 0dBm 10dB dBm RF ATT UNIT 1kHz 1kHz 17s RBW VBW SWT Figure 14. THD at 400 MSPS and fOUT = 1 MHz (Diplexer High-Pass Output Showing Harmonics After Calibration, See the Performance Effects of Calibration Section) SPAN 34.68MHz SWEEP 1.012s (601 pts) VBW 100kHz CENTER 70.00MHz *RES BW 10kHz RMS RESULTS CARRIER POWER –14.58dBm/ 3.84000MHz FREQ OFFSET 5.000MHz 10.00MHz 15.00MHz REF BW 3.840MHz 3.840MHz 3.840MHz dBc –76.72 –76.96 –77.07 dBm –91.30 –91.54 –91.65 LOWER dBc –76.69 –77.04 –76.76 dBm –91.27 –91.62 –91.34 UPPER REF –35dBm *AVG Log 10dB/ PAVG 10 W1 S2 *ATTEN 8dB EXT REF Figure 15. One-Carrier WCDMA at 400 MSPS fOUT = 70 MHz SPAN 47.38MHz SWEEP 1.383s (601 pts) VBW 100kHz CENTER 70.00MHz *RES BW 10kHz 1 –20.51dBm 2 –20.72dBm TOTAL CARRIER POWER -17.61dBm/7.68000MHz REF CARRIER POWER -20.72dBm/3.84000MHz OFFSET FREQ 5.000MHz 10.00MHz 15.00MHz INTEG BW 3.840MHz 3.840MHz 3.840MHz dBc –70.61 –71.29 –71.36 dBm –91.34 –92.01 –92.08 LOWER RRC FILTER: ON FILTER ALPHA 0.22 dBc –70.74 –71.31 –71.06 dBm –91.47 –92.03 –91.78 UPPER REF –40dBm *AVG Log 10dB/ PAVG 10 W1 S2 *ATTEN 6dB EXT REF Figure 16. Two-Carrier WCDMA at 400 MSPS fOUT = 70 MHz SPAN 59.58MHz SWEEP 1.739s (601 pts) VBW 100kHz CENTER 70.00MHz *RES BW 10kHz 1 –26.43dBm 2 –26.53dBm 3 –26.74dBm 4 –26.88dBm TOTAL CARRIER POWER -20.62dBm/15.3600MHz REF CARRIER POWER -26.43dBm/3.84000MHz OFFSET FREQ 5.000MHz 10.00MHz 15.00MHz INTEG BW 3.840MHz 3.840MHz 3.840MHz dBc –66.59 –67.63 –67.59 dBm –93.00 –94.04 –94.00 LOWER RRC FILTER: ON FILTER ALPHA 0.22 dBc –67.07 –67.54 –67.44 dBm –93.48 –93.95 –93.86 UPPER REF –45dBm *AVG Log 10dB/ PAVG 10 W1 S2 *ATTEN 4dB EXT REF Figure 17. Four-Carrier WCDMA at 400 MSPS fOUT = 70 MHz |
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