Digital detection of instability of higher orderbandpass sigma-delta converters
O. Tlaskal, M.J. Underhill, D.W.R. Orton
Abstract
O. Tlaskal, M.J. Underhill, D.W.R. Orton
Abstract
A digital method of stabilising higher order sigma-delta converters is presented. Results are given a third order bandpass ΣΔ converter with three continuous time LC filters, tuned to 1/4 of clock frequency fc.
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A digital method of stabilising higher order sigma-delta converters is presented. Results are given a third order bandpass ΣΔ converter with three continuous time LC filters, tuned to 1/4 of clock frequency fc.
Key concepts: Converters, Delta-sigma modulation, Band-pass filter, Sigma, Electronic engineering, Third order, Instability, Order (exchange)