A digitally tuned anti-aliasing/reconstruction filter simplifies high performance DSP design
Max W. Houser and Philip Karantzalis
Abstract
LTC1564, a digitally tuned anti-aliasing/reconstruction filter that simplifies high performance digital signal processing design is described.
Keywords
Anti-aliasing filter
reconstruction filter
LTC1564
Introduction
Typically an analog anti-aliasing filter is used to band-limit wideband signals at the input of an analog-to-digital converter. In addition, as the converter’s sampling rate changes, an anti-aliasing filter’s passband should increase or decrease accordingly. A frequency-tunable analog filter for a high resolution converter requires a large number of expensive precision components. ...
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