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データシートサーチシステム |
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AD9689-2000EBZ データシート(PDF) 22 Page - Analog Devices |
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AD9689-2000EBZ データシート(HTML) 22 Page - Analog Devices |
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22 / 134 page  AD9689 Data Sheet Rev. A | Page 22 of 134 0 –120 –90 –60 –45 –30 –15 1.05G 0 900M 750M 600M 450M 300M 150M fIN (Hz) –105 –75 1.20G AIN = –2dBFS SNRFS = 58.0dB SFDR = 64dBFS ENOB = 9.1 BITS NSD = –149.0dBFS/Hz BUFFER CURRENT = 700µA Figure 42. Single-Tone FFT at fIN = 3300 MHz 0 –120 –90 –60 –45 –30 –15 1.05G 0 900M 750M 600M 450M 300M 150M fIN (Hz) –105 –75 1.20G AIN = –2dBFS SNRFS = 54.0dB SFDR = 60dBFS ENOB = 8.2 BITS NSD = –145.1dBFS/Hz BUFFER CURRENT = 700µA Figure 43. Single-Tone FFT at fIN = 4350 MHz; Full-Scale Voltage = 1.1 V p-p 0 1.05G 900M 750M 600M 450M 300M 150M fIN (Hz) 0 –120 –90 –60 –45 –30 –15 –105 –75 1.20G AIN = –2dBFS SNRFS = 53.0dB SFDR = 59dBFS ENOB = 7.9 BITS NSD = –144.1dBFS/Hz BUFFER CURRENT = 700µA Figure 44. Single-Tone FFT at fIN = 5400 MHz; Full-Scale Voltage = 1.1 V p-p 30 35 40 45 50 55 60 65 70 75 80 INPUT FREQUENCY (MHz) 300µA, SFDR 300µA, SNR 500µA, SFDR 500µA, SNR 700µA, SFDR 700µA, SNR Figure 45. SNR/SFDR vs. Input Frequency (fIN) for Various Buffer Currents INPUT FREQUENCY (MHz) –80 –75 –70 –65 –60 –55 –50 –45 300µA 500µA 700µA Figure 46. Second Harmonics (HD2) vs. Input Frequency (fIN) for Various Buffer Currents –90 –85 –80 –75 –70 –65 –60 –55 –50 –45 –40 INPUT FREQUENCY (MHz) 300µA 500µA 700µA Figure 47. Third Harmonics (HD3) vs. Input Frequency (fIN) for Various Buffer Currents |
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