Hi, I'm hyunwoo-kim .
I'm set sampling frequency is 8kHz and 0dB gain mode.
and then input sine-wave with 1Vp-p by function generator.
And I expected output signal is same with 1Vp-p sine-wave but there is not same by input frequency.
I get output signal same as input signal from 1kHz to 3kHz , but there is little bit attenuate output signal at 4kHz.
I know that it can be recovered at 4kHz input signal at 8kHz sampling frequency by nyquist sampling theory.
Could you explain why there is some signal attenuate at 4kHz with 8kHz sampling frequency ?
Best Regards,