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PROGRAMMABLE_ANALOG_FILTER

2017-02-27 02:52  
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PROGRAMMABLE_ANALOG_FILTER
The circuit in the figure shows how an analog, digitally programmable filter can be built using a UAF42. This monolithic, state-variable active filter chip provides a two-pole filter building block with low sensitivity to extemal component variations. It eliminates aliasing errors and clock feed though noise common to switched-capacitor filters. Low-pass, high-pass, bandpass, and notch (band-reject) outputs are available.