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Altera_Forum
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14 years ago

FIR Compiler Strange Output

I've just added an FIR Compiler to my design, for use as an antialiasing filter. The sampling frequency is 6.25kHz, and low-pass filter cutoff is 3kHz. I've run a test signal through; a pure s...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
14 years ago

Try to use the 12 MSBs in your output. It looks like you are truncating the 8 MSBs right now. Also please try to run a clock rate a bit higher than the sample rate. That way you will have a bit better margins.

/Boris