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Altera_Forum's avatar
Altera_Forum
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11 years ago

problem with FIR IP

FIR IP filter output waveform shake up and down , Input signal contains the useful signal and the noise signals , so the frequency of the noise signal may be greater than half of the sam...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
11 years ago

Can you describe the signal you are sampling (its amplitude and frequency), and the ADC you are using? Sampling at 25MHz seems like too much oversampling.