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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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ADS5294IPFPR датащи(PDF) 26 Page - Texas Instruments |
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ADS5294IPFPR датащи(HTML) 26 Page - Texas Instruments |
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26 / 82 page  −150 −140 −130 −120 −110 −100 −90 −80 −70 −60 −50 −40 −30 −20 −10 0 0 0.5 1 1.5 2 2.5 3 3.5 4 4.5 5 Input Signal Frequency (MHz) HPF_DISABLED HPF_ENABLED −125 −115 −105 −95 −85 −75 −65 −55 −45 −35 −25 −15 −5 0 0 5 10 15 20 25 30 35 40 Frequency (MHz) −140 −130 −120 −110 −100 −90 −80 −70 −60 −50 −40 −30 −20 −10 0 0 5 10 15 20 25 30 35 40 Frequency (MHz) SNR = 77.9 dBFS SINAD = 77.9 dBFS SFDR = 93.13 dBc THD = −96 dBc 2 Channels averaged −45 −42 −39 −36 −33 −30 −27 −24 −21 −18 −15 −12 −9 −6 −3 0 3 0.02 0.1 1 10 15 Input Signal Frequency (MHz) K=2 K=3 K=4 K=5 K=6 K=7 K=8 K=9 K=10 −80 −70 −60 −50 −40 −30 −20 −10 0 10 20 30 40 0.0 0.1 0.2 0.3 0.4 0.5 Normalized frequency (fin/fs) Low Pass Band−Pass1 Band−Pass2 High Pass −140 −130 −120 −110 −100 −90 −80 −70 −60 −50 −40 −30 −20 −10 0 0 5 10 15 20 Frequency (MHz) SNR = 78.2 dBFS SINAD = 78.2 dBFS Decimate by 2 Filter Enabled 26 ADS5294 SLAS776E – NOVEMBER 2011 – REVISED APRIL 2018 www.ti.com Product Folder Links: ADS5294 Submit Documentation Feedback Copyright © 2011–2018, Texas Instruments Incorporated Typical Characteristics (continued) Typical values are at 25°C, AVDD = 1.8 V, LVDD = 1.8 V, 50% clock duty cycle, –1-dBFS differential analog input, 14 Bit/ 80 MSPS, ADC is configured in the internal reference mode, unless otherwise noted. Figure 32. Filter Response, Decimate by 4 Figure 33. FFT for 5-MHz Input Signal, Sample Rate = 80 MSPS with Decimation Filter = 2 Figure 34. FFT for 5-MHz Input Signal, Sample Rate = 80 MSPS by Averaging 2 Channels Figure 35. Digital High-Pass Filter Response Figure 36. FFT with HPF Enabled and Disabled, No Signal Figure 37. FFT (Full-Band) for 5-MHz Input Signal, Sample Rate = 80 MSPS with Low Frequency Noise Suppression Enabled |
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