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Digital signal processing for data converters in mixed-signal systems

Digitale Signalverarbeitung für Datenumsetzer in Mixed-Signal-Systemen

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Zusammenfassung

In diesem Beitrag untersuchen die Autoren Datenumsetzer, die die Möglichkeiten von fortgeschrittener digitaler Signalverarbeitung aus- nutzen. Nach der Diskussion über Notwendigkeit und Aussichten der digitalen Signalverarbeitung für Datenumsetzer zur Erfüllung zukünftiger Systemspezifikationen werden anhand von drei Beispielen digital verbesserte Datenumsetzer erläutert: zeitverschachtelte Analog-zu-Digitalumsetzer, digitale Phasenregelkreise und vorverzerrte Leistungsverstärker. Zu diesem Zweck wird der Begriff des Datenumsetzers zu einem kooperierenden System erweitert, das zur Erfüllung der geforderten Spezifikationen digitale und analoge Vor- und Nachverarbeitungseinheiten umfasst.

Summary

In this paper, we investigate data converters that exploit the possibilities of advanced digital signal processing. After discussing the necessity and prospects of digital signal processing for data converters to comply with next generation system specifications, we demonstrate three examples of digitally enhanced data converters: time-interleaved analog-to-digital converters, all-digital phase-locked loops, and predistorted power amplifiers. To this end, we extend the term of a data converter to a cooperating system that includes digital and analog pre/postprocessing units to fullfil the required specification.

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Authors and Affiliations

  1. Signal Processing and Speech Communication Laboratory, Graz University of Technology, Graz, Austria

    Ch. Vogel & St. Mendel

  2. Infineon Technologies Austria AG, Villach, Austria

    P. Singerl & F. Dielacher

Authors
  1. Ch. Vogel
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  2. St. Mendel
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  3. P. Singerl
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  4. F. Dielacher
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Vogel, C., Mendel, S., Singerl, P. et al. Digital signal processing for data converters in mixed-signal systems. Elektrotech. Inftech. 126, 390–395 (2009). https://doi.org/10.1007/s00502-009-0689-2

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  • DOI: https://doi.org/10.1007/s00502-009-0689-2

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