UG-581 Datasheet, PDF (10/28 Pages) Analog Devices – Full-featured evaluation board

EVAL-AD7961FMCZ
SOFTWARE OPERATION
This section describes the full software operation and all
windows that appear. When the software is launched, the panel
opens and the software searches for hardware connected to the
PC. The user software panel launches as shown in Figure 19.
The labels listed in this section correspond to the numbered
labels in Figure 19.
File Menu (Label 1)
The File menu, labeled 1 in Figure 19, offers the choice to
• Save Captured Data: saves data to a .csv file
• Load Captured Data: loads data for analysis
• Take Screenshot: saves the current screen
• Print: prints the window to the default printer
• Exit: quits the application
Edit Menu (Label 2)
The Edit menu, labeled 2, provides the following offering:
• Initialize to Default Values: This option resets the
software to its initial state
Help Menu (Label 3)
The Help menu, labeled 3, offers help from the
• Analog Devices website
• User Guide
• Context Help
• About
Throughput (Label 4)
The default throughput (sampling frequency) is 5,000 kilo
samples per second (kSPS). The user can adjust the sampling
frequency, however there are limitations around the sample
frequency related to the SCLK frequency applied; the sample
frequency must be at least 500 kSPS. The AD7961 is capable
Evaluation Board User Guide
of operating a maximum sample frequency up to 5,000 kSPS.
If the user enters a value larger than the ability of the AD7961,
the software indicates this and the user must revert to the
maximum sample frequency.
Samples (Label 5)
Select the number of Samples to analyze, when running the
software; this number is limited to 131,072 samples.
Single Capture (Label 6) and Continuous Capture
(Label 7)
Single Capture performs a single capture whereas Continuous
Capture performs a continuous capture from the ADC.
Eval Board Connected (Label 8)
This indicator shows that the device connected.
Voltage Reference (Label 9)
The various options for using the external reference are
controlled by the Voltage Reference option. The default value
is set to 5 V (External Buffer). The other voltage reference
voltage options are 4.096 V and 2.048 V. It is recommended to
use an on-board AD8031 as an external reference buffer.
Tabs
There are four tabs additional available for displaying the data
in different formats.
• Waveform
• Histogram
• FFT
• Summary
To exit the software, go to File>Exit.
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