Analog-to-digital signal converter comprising a multiple sigma-d

Details Analog-to-digital signal converter comprising a multiple sigma-d Analog-to-digital signal converter comprising a multiple sigma-d

1991-06-10

1992-06-23

Pellinen, A. D.

Coded data generation or conversion

Analog to or from digital conversion

Differential encoder and/or decoder

375 28, H03M 302

Patent

active

051247054

ABSTRACT:
Analog-to-digital converter comprising a plurality of sigma-delta modulators, the input of the pulse shaper of a modulator always being coupled to the input of a next modulator via a coupling filter, and the output of the modulators being connected to the summing circuit via decimators, whereas in the decimators the filter function of the coupling filters is compensated. The loop filters in the modulators are described by third-order transfer functions with real poles and zeros.

REFERENCES:
patent: 4862169 (1989-08-01), van Bavel
patent: 4876543 (1989-10-01), van Bavel

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