A/D converter calibration
AssigneeTelefonaktiebolaget LM Ericsson (publ)
InventorBengt Erik Jonsson
Life of this patent
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Abstract
An A/D converter calibration apparatus includes a set of operating condition parameter sensors (100) for detecting the current operating conditions, which are represented by parameters x1, . . . , xN. The measured parameters are forwarded to an operating conditions change detector (102), which calculates a change measure and determines whether this measure exceeds a predetermined change threshold. When a change exceeding the threshold has been detected, a calibration trigger signal CAL_TRIG is passed to a calibration control unit (104), which initiates a background calibration sequence.
Claims24
An A/D converter background calibration method, including the step of
- performing a new background calibration when operating conditions have changed since the last background calibration.
An A/D converter background calibration apparatus, including
- means for performing a new background calibration when operating conditions have changed since the last background calibration.
Dependencies are inferred from the claim text.