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Altera_Forum
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15 years ago

Unwanted offset attenuation in FIR filters

My FIR is now working so far - thanks to Altera Guru "MSchmitt" - but I still have two problems left. Please have a look at the attached pictures - there is an unwanted offset attenuation of 6dB in t...
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Altera_Forum
Icon for Honored Contributor rankHonored Contributor
15 years ago

I meant "DC free" related to the digital data, signal should be around signed zero with no input. I can't see from your waveforms, if this is the case.