Published:2009/6/19 1:49:00 Author:May | From:SeekIC
The state variable filter shown consists of only three op amps and a few passive components. It provides several key features. These include the ability to simultaneously provide low-pass, high-pass, and bandpass filter functions, and adjust bandwidth in a wide range by changing the values of Cf and Rf. The device also is easy to tune and simple to congtruct, while the quality factor (Q) of each filter is independent of each other.
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