Analog Devices EVAL-AD7386FMCZ, Руководство пользователя

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UG-1615 EVAL-AD7386FMCZ User Guide
Rev. A | Page 16 of 21
FFT Tab
Figure 21 shows the FFT tab, which displays fast Fourier transform
(FFT) information for the last batch of samples gathered.
ANALYSIS Pane
General Settings
This section sets up the preferred configuration of the FFT
analysis, including the number of tones analyzed and whether
the fundamental is set manually.
Windowing
This section sets up the preferred windowing type used in the
FFT analysis. The number of harmonic bins and fundamental bins
that must be included in the analysis are also set up in this
section.
Single Tone Analysis and Two Tone Analysis
These sections set up the fundamental frequency included in
the FFT analysis. Type in the values for the
Two Tone Analysis
section when two frequencies are analyzed.
RESULTS Pane
Signal
Signal displays the sample frequency, fundamental frequency,
and fundamental power.
Noise
Noise displays the SNR and other noise performance results.
Distortion
Distortion displays the harmonic content of the sampled signal
and dc power when viewing the FFT analysis.
EXITING THE SOFTWARE
To exit the software, click File and Exit .
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Figure 21. FFT Tab