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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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AD9680 датащи(PDF) 21 Page - Analog Devices |
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AD9680 датащи(HTML) 21 Page - Analog Devices |
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21 / 99 page  Data Sheet AD9680 Rev. C | Page 19 of 97 AD9680-1000 AVDD1 = 1.25 V, AVDD1_SR = 1.25 V, AVDD2 = 2.5 V, AVDD3 = 3.3 V, DVDD = 1.25 V, DRVDD = 1.25 V, SPIVDD = 1.8 V, 1.7 V p-p full-scale differential input, AIN = −1.0 dBFS, default SPI settings, clock divider = 2, TA = 25°C, 128k FFT sample, unless otherwise noted. See Table 10 for recommended settings. –130 –110 –90 –70 –50 –30 –10 0 500 400 300 200 100 FREQUENCY (MHz) AIN = –1dBFS SNR = 67.2dBFS ENOB = 10.8 BITS SFDR = 88dBFS BUFFER CONTROL 1 = 1.5× Figure 30. Single-Tone FFT with fIN = 10.3 MHz –130 –110 –90 –70 –50 –30 –10 0 500 400 300 200 100 FREQUENCY (MHz) AIN = –1dBFS SNR = 66.6dBFS ENOB = 10.7 BITS SFDR = 85dBFS BUFFER CONTROL 1 = 3.0× Figure 31. Single-Tone FFT with fIN = 170.3 MHz –130 –110 –90 –70 –50 –30 –10 0 500 400 300 200 100 FREQUENCY (MHz) AIN = –1dBFS SNR = 65.3dBFS ENOB = 10.5 BITS SFDR = 85dBFS BUFFER CONTROL 1 = 3.0× Figure 32. Single-Tone FFT with fIN = 340.3 MHz –130 –110 –90 –70 –50 –30 –10 0 500 400 300 200 100 FREQUENCY (MHz) AIN = –1dBFS SNR = 64.0dBFS ENOB = 10.3 BITS SFDR = 82dBFS BUFFER CONTROL 1 = 3.0× Figure 33. Single-Tone FFT with fIN = 450.3 MHz 0 500 400 300 200 100 FREQUENCY (MHz) AIN = –1dBFS SNR = 61.5dBFS ENOB = 10.1 BITS SFDR = 82dBFS BUFFER CONTROL 1 = 6.0× –120 –100 –80 –60 –40 –20 0 Figure 34. Single-Tone FFT with fIN = 765.3 MHz 0 500 400 300 200 100 FREQUENCY (MHz) AIN = –1dBFS SNR = 60.5dBFS ENOB = 9.9 BITS SFDR = 80dBFS BUFFER CONTROL 1 = 6.0× –120 –100 –80 –60 –40 –20 0 Figure 35. Single-Tone FFT with fIN = 985.3 MHz |
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