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Altera_Forum
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18 years ago

Low Pass IIR filter using cyclone II FPGA

Hi everyone, I hava a task to implement low pass iir filter on cyclone II FPGA. The parameters of filter are the following: fp=5kHz; pass band frequency fs=8kHz; stop band frequency Fs=44k...
Altera_Forum's avatar
Altera_Forum
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18 years ago

Folks,

One question is bothering me this time...:confused: concerning LowPass filtet of course.

I have input signal range within, let's say, x(t)[-5,5V], and I've designed filter transfer function with some coefficients. I sample x(t) in a specified moment of time and I perform filter calculations using that sample and a some previous samples.

Does it means that each calculated output y(t) must be within a range of my input signal x(t) or not?