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Moteur de recherche de fiches techniques de composants électroniques |
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Moteur de recherche de fiches techniques de composants électroniques |
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AD12400 Fiches technique(PDF) 10 Page - Analog Devices |
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AD12400 Fiches technique(HTML) 10 Page - Analog Devices |
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10 / 24 page  AD12400 Rev. A | Page 10 of 24 Signal-to-Noise-and-Distortion (SINAD) The ratio of the rms signal amplitude (set 1 dB below full scale) to the rms value of the sum of all other spectral components, including harmonics, but excluding dc and image spur. Signal-to-Noise Ratio (SNR) The ratio of the rms signal amplitude (set at 1 dB below full scale) to the rms value of the sum of all other spectral components, excluding the first five harmonics and dc. Spurious-Free Dynamic Range (SFDR) The ratio of the rms signal amplitude to the rms value of the peak spurious spectral component, except the image spur. The peak spurious component may or may not be an harmonic. It can be reported in dBc (that is, degrades as signal level is lowered) or dBFS (always related back to converter full-scale). Total Noise Calculated as ) ( . Z V dBFS dBc dBm Signal SNR FS NOISE 10 10 001 0 − − × × = where: Z is the input impedance. FS is the full scale of the device for the frequency in question. SNR is the value of the particular input level. Signal is the signal level within the ADC reported in dB below full scale. This value includes both thermal and quantization noise. Two-Tone Intermodulation Distortion Rejection The ratio of the rms value of either input tone to the rms value of the worst third-order intermodulation product; reported in dBc. Two-Tone SFDR The ratio of the rms value of either input tone to the rms value of the peak spurious component. The peak spurious component may or may not be an IMD product. It can be reported in dBc (that is, degrades as signal level is lowered) or in dBFS (always related back to converter full-scale). |
Numéro de pièce similaire - AD12400_15 |
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Description similaire - AD12400_15 |
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