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The SID chip also has a low-pass filter. As its name implies, this filter will pass the frequencies below cutoff and attenuate those above.

Finally, the chip is equipped with a bandpass filter, which passes a narrow band of frequencies around the cutoff, and attenuates all others.

The high- and low-pass filters can be combined to form a notch reject filter which passes frequencies away from the cutoff while attenuating at the cutoff frequency.

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This page has been created by Sami Rautiainen.
Read the small print. Last updated February 10, 2002.