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AD6676EBZ 数据表(PDF) 15 Page - Analog Devices |
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AD6676EBZ 数据表(HTML) 15 Page - Analog Devices |
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15 / 90 page  Data Sheet AD6676 Rev. A | Page 15 of 90 NOMINAL PERFORMANCE FOR IF = 181 MHz (WIRELESS INFRASTRUCTURE RECEIVER) FIF = 181 MHz, BW = 75 MHz, FADC = 2.94912 GHz, attenuator = 0 dB, LEXT = 43 nH, maximum PIN_0dBFS setting, fDATA_IQ = 122.88 MSPS, shuffler enabled (every clock cycle), with default threshold settings, unless otherwise noted. 0.50 –1.00 –0.75 –0.50 –0.25 0 0.25 140 145 150 155 160 165 170 175 180 185 190 195 200 205 210 220 215 FREQUENCY (MHz) Figure 22. IF Pass Band Flatness (Includes Digital Filter) INPUT FREQUENCY (MHz) 145 155 165 175 185 195 205 215 –160 –150 –151 –152 –153 –154 –155 –156 –157 –158 –159 NSD (–1dBFS SIGNAL) NSD (NO SIGNAL) Figure 23. NSD With and Without Full-Scale CW at 210 MHz 0 –90 –100 –110 –120 –130 –80 –70 –60 –50 –40 –30 –20 –10 INPUT FREQUENCY (MHz) NBW = 5.6kHz –1dBFS (–3.5dBm) AT 220MHz 140 150 160 170 180 190 200 210 220 225 75MHz IF PASS BAND REGION Figure 24. Spectral Plot of IF Pass Band Region with −1 dBFS CW at 220 MHz 5 0 –5 –10 –15 –20 –25 –30 –35 0 600 450 350 250 550 500 400 300 200 150 100 50 FREQUENCY (MHz) Figure 25. Wideband Frequency Response (Before Digital Filter) –152 –153 –154 –155 –156 –157 –158 –159 –160 –161 –162 –44 –2 –5 –8 –11 –14 –17 –20 –23 –26 –29 –32 –35 –38 –41 INPUT POWER (dBm) PIN_0dBFS = –2.5dBm 216MHz 146MHz 181MHz Figure 26. NSD vs. CW Input Power, CW = 210 MHz (NSD Measured at 181 MHz as well as 146 MHz and 216 MHz Band Edges) –75.0 –75.5 –76.0 –76.5 –77.0 –77.5 –78.0 –78.5 –79.0 –79.5 –80.0 –44 –2 –5 –8 –11 –14 –17 –20 –23 –26 –29 –32 –35 –38 –41 INPUT POWER (dBm) PIN_0dBFS = –2.5dBm Figure 27. IBN in IF Pass Band Region (BW = 75 MHz) vs. Swept Single Tone Input Power with CW at 220 MHz |
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