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resources:eval:user-guides:circuits-from-the-lab:cn0269 [15 Oct 2013 11:32] – [Capturing a Single Capture] yue huaresources:eval:user-guides:circuits-from-the-lab:cn0269 [17 Oct 2013 04:03] – [Overview] yue hua
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 ====== CN-0269 Software User Guide ====== ====== CN-0269 Software User Guide ======
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 ===== Overview ===== ===== Overview =====
 [[http://www.analog.com/CN0287|CN-0269]] is a high performance industrial signal level multi-channel data acquisition circuit that can process 16-channels of single-ended inputs or 8-channels of differential inputs with up to 18-bit resolution. [[http://www.analog.com/CN0287|CN-0269]] is a high performance industrial signal level multi-channel data acquisition circuit that can process 16-channels of single-ended inputs or 8-channels of differential inputs with up to 18-bit resolution.
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     * This Sub Tab shows the distribution status in time domain for the selected channel.     * This Sub Tab shows the distribution status in time domain for the selected channel.
   - **Dynamic Performance Analysis**   - **Dynamic Performance Analysis**
-    * SNR: Signal to Noise Ratio.+    * SNR: Usually, the SNR is the ratio of the rms value of the actual input signal to the rms sum of all other spectral components below the Nyquist frequency, excluding harmonics and dc. The value for SNR is expressed in decibels. (Here the SNR in CN0269 Evaluation Software is used to characterize the dynamic **performance of ADC given the input signal covering all the dynamic range of it**. So, the amplitude of fundamental frequency is equal to 1).
     * SINAD: Signal-to-Noise-and-Distortion Ratio.     * SINAD: Signal-to-Noise-and-Distortion Ratio.
     * SFDR: Spurious Free Dynamic Range.     * SFDR: Spurious Free Dynamic Range.
     * THD: Total Harmonic Distortion.     * THD: Total Harmonic Distortion.
-    * Sin/N: ???+    * Sin/N: The "SNR" to the actual input signal. the ratio of the rms value of the actual input signal to the rms sum of all other spectral components below the Nyquist frequency, excluding harmonics and dc.
     * Fund ampl: Fundamental Frequency Amplitude.     * Fund ampl: Fundamental Frequency Amplitude.
  
resources/eval/user-guides/circuits-from-the-lab/cn0269.txt · Last modified: 29 Jul 2021 05:56 by Harvey John De Chavez

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