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AFE5818EVM: how to get the waveform as the user guide

Part Number: AFE5818EVM
Other Parts Discussed in Thread: AFE5818

hi,

from AFE5818 EVM user guide, there is figure 21.

https://www.ti.com/lit/ug/slou430a/slou430a.pdf

my customer try to reproduce it but it looks as below.

can I know what's wrong here?

By the way, can I know which signal generator and BPF mentioned in page 7 you use to get the waveform?

BR,

frank