Design of Continuous Time Bandpass SDMS

  • Jurgen van Engelen
  • Rudy van de Plassche


Bandpass sigma delta modulation is well suited for A/D conversion of narrow band signals modulated on a carrier signal. Although stability is an important design criterion for SDMs, several other criteria and performance goals determine the actual choice of architecture, oversampling ratio and other design considerations. For bandpass SDMs the use of a continuous time loop filter seems advantageous. The stability requirements on the equivalent discrete time loop filter affect the design and architecture of the continuous time loop filter.


Continuous Time Pulse Shape Tuning Frequency Loop Filter Filter Structure 
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Copyright information

© Springer Science+Business Media Dordrecht 1999

Authors and Affiliations

  • Jurgen van Engelen
    • 1
  • Rudy van de Plassche
    • 2
  1. 1.Broadcom Corp.IrvineUSA
  2. 2.Broadcom Netherlands B.V.BunnikThe Netherlands

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