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6.4 Initial Required Setup on the Capture Tab
In Figure 6-5 , the device and EVM are powered up and configured. In this step, the necessary updates to the
Capture settings are made to capture the time domain data and to get a good frequency domain result. First, the
EN SYNC button is pressed to synchronize the communication channel. Next, update the number of samples to
at least 32k to get good frequency domain results (for example, accurate FFT display, SNR data, and THD data).
Finally, select the Hanning type window to eliminate spectral leakage in the FFT result.
When these changes are made, press the Start Capture button to collect time domain and frequency domain
data. To view data for channel 1 or channel 2, select the appropriate tab.
1. Press “EN SYNC”
3. Change window type to
“Hanning”
2. Choose at least 32k samples
for good FFT results.
4. Press “Start Capture” to
collect data
5. Choose the channel you
want to observe
Figure 6-5. Initial Required Setup on the Capture Tab
www.ti.com EVM Operation
SBAU409 – SEPTEMBER 2022
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ADS9218EVM-PDK Evaluation Module 17
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