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AD6676EBZ 数据表(PDF) 12 Page - Analog Devices |
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AD6676EBZ 数据表(HTML) 12 Page - Analog Devices |
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12 / 90 page  AD6676 Data Sheet Rev. A | Page 12 of 90 TYPICAL PERFORMANCE CHARACTERISTICS NOMINAL PERFORMANCE FOR IF = 115 MHz (DIRECT SAMPLING VHF RECEIVER) FIF = 115 MHz, BW = 20 MHz, FADC = 2.4 GHz, attenuator = 0 dB, LEXT = 100 nH, maximum PIN_0dBFS setting, fDATA_IQ = 75 MSPS, nominal supplies, shuffler enabled (every 4 clock cycles), with default threshold settings, unless otherwise noted. 0.50 –1.50 –1.25 –1.00 –0.75 –0.50 –0.25 0 0.25 80 150 140 130 120 110 100 90 FREQUENCY (MHz) Figure 4. IF Pass Band Flatness (Includes Digital Filter) –153 –163 –162 –161 –160 –159 –158 –157 –156 –155 –154 105 125 120 115 110 INPUT FREQUENCY (MHz) NSD (–1dBFS SIGNAL) NSD (NO SIGNAL) Figure 5. NSD With and Without Full-Scale CW at 108 MHz 0 –130 –90 –100 –110 –120 –80 –70 –60 –50 –40 –30 –20 –10 105 125 120 115 110 INPUT FREQUENCY (MHz) NBW = 3.4kHz IF PASS BAND REGION –1dBFS AT 108MHz Figure 6. Spectral Plot of IF Pass Band Region with −1 dBFS CW at 108 MHz 5 –35 –30 –25 –20 –15 –10 –5 0 0 600 450 300 150 550 400 250 100 500 350 200 50 FREQUENCY (MHz) Figure 7. Wideband Frequency Response (Before Digital Filter) –153 –163 –162 –161 –160 –159 –158 –157 –156 –155 –154 –44 –2 –5 –8 –11 –14 –17 –20 –23 –26 –29 –32 –35 –38 –41 INPUT POWER (dBm) PIN_0dBFS = –2.9dBm SHUFFLER DISABLED SHUFFLE-EVERY-4TH CLOCK Figure 8. NSD vs. CW Input Power, CW at 108 MHz (NSD Measured at IF Center of 115 MHz) –85 –95 –94 –93 –92 –91 –90 –89 –88 –87 –86 –44 –2 –5 –8 –11 –14 –17 –20 –23 –26 –29 –32 –35 –38 –41 INPUT POWER (dBm) PIN_0dBFS = –2.9dBm SHUFFLER DISABLED SHUFFLE-EVERY-4TH CLOCK Figure 9. Integrated In-Band Noise (IBN) in IF Pass Band Region of 10 MHz vs. Swept Single Tone Input Power with CW at 130 MHz |
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