Software Operation; Launching The Software; Exiting The Software; Description Of Analysis Window - Analog Devices EVAL-ADAQ23875FMCZ User Manual

UG-1896

SOFTWARE OPERATION

LAUNCHING THE SOFTWARE

When the EVAL-ADAQ23875FMCZ and
properly connected to the PC, launch the
launch the ACE software, take the following steps:
1. From the Start menu, select All Programs > Analog
Devices > ACE> ACE.exe to open the main software
window shown in Figure 10.
2. The EVAL-ADAQ23875FMCZ icon appears in the
Attached Hardware section.
3. If the EVAL-ADAQ23875FMCZ is not connected to the
USB port via the SDP-H1
launched, the EVAL-ADAQ23875FMCZ board icon does
not appear in the Attached Hardware section. Connect
the EVAL-ADAQ23875FMCZ and
USB port of the PC and wait a few seconds, then continue
following these instructions.
4. Double-click the EVAL-ADAQ23875FMCZ board icon to
open the window shown in Figure 10.
5. Click Software Defaults and then click Apply Changes.
6. Click Proceed to Analysis to open the EVAL-
ADAQ23875FMCZ analysis shown on Figure 11.

EXITING THE SOFTWARE

To exit the software, click file icon on the upper right tab and
then click Exit.

DESCRIPTION OF ANALYSIS WINDOW

Click Proceed to Analysis in the chip view window to open the
window shown in Figure 12. The analysis view contains the
Waveform tab, Histogram tab, FFT tab, INL tab, and DNL tab.
Waveform Tab
The Waveform tab displays results in time domain, as shown
in Figure 13. The Capture pane contains the capture settings,
which reflect in the registers automatically before data capture.
Capture Pane
The Sample Count dropdown list in the General Capture
Settings section allows the user to select the number of samples
per channel per capture.
The user can enter the input sample frequency in kSPS in the
Sampling Frequency (KSPS) box in the General Capture
Settings section. Refer to the
determine the maximum sampling frequency for the selected
mode.
Click Run Once in the Device Settings section to start a data
capture of the samples at the sample rate specified in the
Sample Count dropdown list. These samples are stored on the
FPGA device and are only transferred to the PC when the
sample frame is complete.
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SDP-H1 boards are
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EVAL-ADAQ23875FMCZ
Click Run Continuously in the Device Settings section to start
a data capture that gathers samples continuously with one
batch of data at a time.
Results Pane
The Display Channels section allows the user to select which
channels to capture. The data for a specific channel is only
shown if that channel is selected before the capture.
The Waveform Results section displays amplitude, sample
frequency, and noise analysis data for the selected channels.
Click Export to export captured data. The waveform,
histogram, and FFT data is stored in .xml files, along with the
values of parameters at capture.
Waveform Graph
The data waveform graph shows each successive sample of the
µModule output. The user can zoom in on and pan across the
waveform using the embedded waveform tools. The channels to
display can be selected in the Display Channels section.
Click the display unit's dropdown list (shown with the Codes
option selected in Figure 13) to select whether the data graph
displays in units of hexadecimal, volts, or codes. 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 µModule results after each batch of samples.
Histogram Tab
The Histogram tab contains the histogram graph and the
Results pane, as shown in Figure 14.
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. This graph is useful for dc analysis
and indicates the noise performance of the device.
FFT Tab
The FFT tab displays FFT information for the last batch of
samples gathered, as shown in Figure 15. The FFT also allows
the oversampling function with OSR up to 256×, as shown in
Figure 18. As a general rule, oversampling by a factor of four
provides one additional bit of resolution, or a 6 dB increase in
dynamic range (DR) of the ADAQ23875. In other words,
ΔDR = 10 × log10 (OSR) (in dB)
INL, DNL Tab
The INL and DNL tab displays linearity analysis. INL is the
deviation of each individual code from a line drawn from
negative full scale through positive full scale. The point used as
negative full scale occurs ½ LSB before the first code transition.
Positive full scale is defined as a level 1½ LSB beyond the last
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User Guide