Integral switched capacitor FIR filter/digital-to-analog convert

Details Integral switched capacitor FIR filter/digital-to-analog convert Integral switched capacitor FIR filter/digital-to-analog convert

1989-10-04

1991-04-30

Pellinen, A. D.

Coded data generation or conversion

Analog to or from digital conversion

Digital to analog conversion

341144, H03M 166

Patent

active

050122452

ABSTRACT:
A combined finite impulse response filter and digital-to-analog converter for converting sigma-delta over-sampled data into analog form. The filter removes out-of-band noise energy from the reconstructed analog signal resulting from the sigma-delta encoding process. The filter/converter is implemented in switched-capacitor technology. Further, a method of designing the optimum number of taps and the tap weight coefficients of the filter is given.

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