H - Electricity – 03 – M
Patent
H - Electricity
03
M
H03M 1/12 (2006.01) H03M 1/06 (2006.01)
Patent
CA 2688528
A method for the compensation of frequency-response mismatch errors in M -channel time- interleaved ADCs. The compensation is done by means of a technique that makes use of a number of fixed filters, that approximate differentiators of different orders, and a few variable multipliers that directly correspond to parameters in polynomial models of the M channel frequency responses. The invention further provides a compensated M -channel time- interleaved ADC based on and performing said method.
L'invention concerne un procédé de compensation des erreurs de désadaptation de réponse en fréquence dans des convertisseurs analogiques / numériques à entrelacement temporel à M canaux. La compensation est mise en oeuvre au moyen d'une technique qui utilise un certain nombre de filtres fixes effectuant l'approximation les différentiateurs d'ordres différents, et plusieurs multiplicateurs variables qui correspondent directement aux paramètres dans des modèles polynomiaux des réponses en fréquences de M canaux. L'invention concerne aussi un convertisseur analogique / numérique compensé à entrelacement temporel à M canaux qui est basé sur ce procédé et le met en oeuvre.
Gowling Lafleur Henderson Llp
Signal Processing Devices Sweden Ab
LandOfFree
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