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AD6676EBZ 数据表(PDF) 14 Page - Analog Devices |
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AD6676EBZ 数据表(HTML) 14 Page - Analog Devices |
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14 / 90 page  AD6676 Data Sheet Rev. A | Page 14 of 90 NOMINAL PERFORMANCE FOR IF = 140 MHz (µW POINT-TO-POINT RECEIVERS) FIF = 140 MHz, BW = 56 MHz or 112 MHz, FADC = 3.2 GHz, attenuator = 0 dB, LEXT = 43 nH, maximum PIN_0dBFS setting, fDATA_IQ = 200 MSPS, nominal supplies, shuffler enabled (every clock cycle), with default threshold settings, unless otherwise noted. 0.5 –2.0 –1.5 –1.0 –0.5 0 80 200 170 150 130 190 180 160 140 120 110 100 90 FREQUENCY (MHz) 56MHz BW SETTING 112MHz BW SETTING Figure 16. IF Pass Band Flatness (Includes Digital Filter) INPUT FREQUENCY (MHz) 80 90 100 110 120 130 140 150 160 170 180 190 200 –162 –160 –158 –156 –154 –152 –150 –148 –146 –144 BW SETTING OF 112MHz (IBN = –72.2dBFS) BW SETTING OF 56MHz (IBN = –80.5dBFS) Figure 17. NSD with No Signal, IBN = 112 MHz and 56 MHz 0 –90 –100 –110 –120 –80 –70 –60 –50 –40 –30 –20 –10 40 240 140 60 160 80 180 100 200 120 220 INPUT FREQUENCY (MHz) NBW = 9.2kHz IBN = –88dBFS 14MHz QAM1024 AT –52dBFS CNR = 36dB 2.5× CH BW = 35MHZ –19.7dBm CW INTERFERER TONE AT –22dBFS Figure 18. Spectral Plot of CW Interferer Dynamic Range for QAM1024, Channel BW = 14 MHz at Sensitivity Level with CW Interferer 30 dB Higher at 35 MHz Offset 5 0 –5 –10 –15 –20 –25 –30 –35 0 600 450 350 250 550 500 400 300 200 150 100 50 FREQUENCY (MHz) 56MHz BW SETTING 112MHz BW SETTING Figure 19. Wideband Frequency Response (Before Digital Filter) –75 –80 –85 –90 –95 –44 –2 –5 –8 –11 –14 –17 –20 –23 –26 –29 –32 –35 –38 –41 INPUT POWER (dBm) PIN_0dBFS = –2.7dBm CH BW = 56MHz CH BW = 28MHz CH BW = 14MHz CH BW = 7MHz Figure 20. IBN vs. Swept Single Tone Input Power over Channel BW = 7 MHz, 14 MHz, 28 MHz, and 56 MHz, CW Blocker at 350 MHz 0 –90 –100 –110 –120 –130 –80 –70 –60 –50 –40 –30 –20 –10 INPUT FREQUENCY (MHz) NBW = 9.6kHz TWO TONES AT –8dBFS (–10.7dBm) AT 137.5MHz AND 142.5MHz 115 120 125 130 135 140 145 150 155 160 165 –101dBFS –100dBFS Figure 21. Two-Tone IMD Performance (f1 = 137.5 MHz, f2 = 142.5 MHz) |
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