Title :
Wave digital decimation filters in oversampled A/D converters
Author :
Dijkstra, E. ; Cardoletti, L. ; Nys, O. ; Piguet, C. ; Degrauwe, M.
Author_Institution :
Centre Suisse d´´Electron. et de Microtech. SA, Neuchatel, Switzerland
Abstract :
A digital decimation filter system for oversampled A/D (analog-to-digital) converters is addressed. To achieve very low passband ripples for data acquisition converters, a cascade of a comb filter and some bireciprocal equiripple wave digital decimation filters is applied. The complexity of the filters is minimized by taking into account the noise shaping of the modulator. An example is considered, involving the design of a digital decimation filter for a 16-bit sigma-delta A/D converter.<>
Keywords :
analogue-digital conversion; delta modulation; wave digital filters; bireciprocal equiripple wave digital decimation filters; comb filter; data acquisition converters; example; low passband ripples; noise shaping; oversampled A/D converters; sigma-delta A/D converter; Attenuation; Data acquisition; Delta-sigma modulation; Digital filters; Digital-to-frequency converters; Finite impulse response filter; Noise shaping; Passband; Quantization; Very large scale integration;
Conference_Titel :
Circuits and Systems, 1988., IEEE International Symposium on
Conference_Location :
Espoo, Finland
DOI :
10.1109/ISCAS.1988.15410
