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Altera_Forum's avatar
Altera_Forum
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16 years ago

input to IIR filter in Verilog

Just a quick question regarding implementing an IIR filter in Verilog... At the moment, I am using the Wolfson ADC on the DE2-70 to convert analogue sound input from Line In to digital bits - t...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
16 years ago

My only worry is that 1100000000 assumed 768, but you made it negative.

add sign bit, keep your scaling.

I checked your filter in Matlab. it cuts off at(say .2 FS) and stop band attenuation is 4.5 dB. Is that what you want?