Analog Devices EVAL-AD7606C18FMCZ, User Manual

Page: 13 / 15

EVAL-AD7606C18FMCZ Evaluation Board User Guide UG-1870
Rev. 0 | Page 13 of 15
The Waveform Results (Codes) and Waveform Results (Volts)
sections display the amplitude, sample frequency, and noise
analysis data for the selected channels (see Figure 16).
Click
Export to export the captured data (see Figure 16). The
waveform, histogram, and FFT data is stored in .xml files along
with the values of parameters at capture.
The data
Waveform graph shows each successive sample of the
ADC output (see Figure 16). The user can zoom in and out and
pan over the
Waveform graph using the embedded waveform
tools above the graph. Select the channels to display in the
Display Channels section.
Under the Display Units pulldown menu, select Codes above
the Waveform graph (see Figure 16) to select whether the
Waveform graph displays in units of Codes , Hex , or Volts . The
axis controls are dynamic.
When selecting either
y-scale dynamic or x-scale dynamic , the
corresponding axis width automatically adjusts to show the
entire range of the ADC results after each batch of samples.
Select the dynamic using the
XYDirection tool (see Figure 16).
HISTOGRAM TAB
The Histogram tab contains the Histogram graph and the
RESULTS pane, as shown in Figure 17.
The RESULTS pane displays the information related to the dc
performance.
The
Histogram graph displays the number of hits per code within
the sampled data (see Figure 17). The Histogram graph is useful
for dc analysis and indicates the noise performance of the
AD7606C-18 .
FFT TAB
The FFT tab displays the fast Fourier transform (FFT) information
for the last batch of samples gathered (see Figure 18).
ANALYSIS Pane
The General Settings section allows the user to set up the
preferred configuration of the FFT analysis, including how
many tones are analyzed. The fundamental is set manually.
The
Windowing section allows the user to select the
windowing type used in the FFT analysis, the number of
Harmonic Bins , and the number of Fundamental Bins that
must be included.
The
Single Tone Analysis and Two Tone Analysis sections
allow the user to select the fundamental frequency included in
the FFT analysis. Use the
Two Tone Analysis settings when
analyzing two frequencies.
RESULTS Pane
The Signal section displays the Fund Frequency and Fund
Power (see Figure 18).
The Noise section displays the SNR and other noise
performance results (see Figure 18).
The
Distortion section displays the harmonic content of the
sampled signal and dc power when viewing the FFT analysis
(see Figure 18).
AUTOMATED TEST OPERATION
To perform the automated test for the AD7606C-18, see the
AD7606C ACE Remote Control page on the Analog Devices,
Inc., website and follow the instructions to operate the
hardware and software, set up the Python/MATLAB
environment, and begin communication between the
ACE
software and the Python/MATLAB script.
EXITING THE SOFTWARE
To exit the software, click File and then click Exit .