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EV10AQ190x-DK - User Guide 4-27
1067BX–BDC–12/11
Sampling Nbr:
Number of samples in acquisition
Must be a 2n
For FFT N=4X2n (n=number bit of ADC).
For INL N=16X2n (n=number bit of ADC)
Example for 10-bit ADC FFT must be computed with 4096 points and INL with
16384 points
Nb Harmonics:
Number of Harmonics considered for THD and SNR calculation (Default value is 10
harmonics).
FFT window:
When the analog input signal and the sampling clock are not coherent signals, a FFT
windows has to be applied to obtain a correct result.
Analog Input Frequency:
For use when the analog input is not the highest amplitude. Normally the systems takes
the highest harmonic as H1.
Bypass Interlacing
This can be used in 1 or 2 channel modes for viewing the non-interlaced data.
Peak width:
When FFT windows is applied the Harmonic signal is composed of several points
(Default value is 11).
Figure 4-46. FFT Window Configuration
Data can be saved in Excel file
Figure 4-47. Save Data Configuration