Tool/software:
Hi, everyone
I am using a function generator to create an analog sine waveform, which I input into the AFE5816 and then verify the output through the FPGA.
Before inputting the analog signal, I configured the 14-bit serialization, and verified that all test patterns (toggle, sync, ramp) were correctly parallelized and displayed properly on the ILA.
However, after inputting the analog signal instead of the test patterns and checking the parallelized data on the FPGA, I observed the following issues:
* Analog signal setup : 1MHz 50mVpp sine waveform
1) Low-power mode, DTGC gain code = c0(H)
2) Medium power mode, DTGC gain code = c0(H)
3) Medium power mode, DTGC gain code = 40(H)
4) Medium power mode, DTGC gain code = 40(H), Fixed attenuation -16dB
Despite setting the input waveform amplitude and DTGC gain to low values, the peaks of the waveform seem to be clipped. Could you please advise on what might be causing this issue?
I thought the issue was due to the signal being too large, so I reduced the analog input signal, but it did not resolve the problem.
Although the signal is incomplete, the frequency matched the input in all cases.
Thank you,.
Sincerely,
