Analog-to-digital conversion overload detection and suppression

Details Analog-to-digital conversion overload detection and suppression Analog-to-digital conversion overload detection and suppression

1998-03-30

2000-05-16

Young, Brian

Coded data generation or conversion

Analog to or from digital conversion

Differential encoder and/or decoder

341118, H03M 300, H03M 106

Patent

active

060643269

ABSTRACT:
A technique for detecting and suppressing overload conditions in an analog-to-digital converter which uses a delta-sigma modulator. In order to prevent overloading in modulator, a detection unit is used to detect a preset amplitude level associated with an input signal and when such level is detected, the performance of the modulator is degraded in order to prevent the overload condition from occurring. The degrading is achieved by changing the coefficients of operation of the integrator(s) in the modulator.

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