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IP Generation for an FPGA-Based Audio DAC Sigma-Delta Converter

  • Ralf Ludewig
  • Oliver Soffke
  • Peter Zipf
  • Manfred Glesner
  • Kong Pang Pun
  • Kuen Hung Tsoi
  • Kin Hong Lee
  • Philip Leong
Conference paper
Part of the Lecture Notes in Computer Science book series (LNCS, volume 3203)

Abstract

In this paper we describe a parameterizable FPGA-based implementation of a sigma-delta converter used in a 96kHz audio DAC. From specifications of the converter’s input bitwidth and data sampling frequency, VHDL generic parameters are used to automatically generate the required design. The resulting implementation is optimized to use the minimum internal wordlength and number of stages. We prototyped the converter on an FPGA board for verification purposes and the results are presented.

Keywords

System Level Simulation Noise Transfer Function Noise Shaping Signal Transfer Function FPGA Board 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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References

  1. 1.
    Cheung, R.C.C., Pun, K.P., Yuen, S.C.L., Tsoi, K.H., Leong, P.H.W.: An FPGA-based Re-configurable 24-bit 96kHz Sigma-Delta Audio DAC. In: FPT 2003, Tokyo, Japan (2003)Google Scholar
  2. 2.
    Temes, G.C., Shu, S., Schreier, R.: Architecture for Sigma Delta DACs. In: Norsworthy, S.R., et al. (eds.) Delta Sigma Data Converters, IEEE Press, Los Alamitos (1997)Google Scholar
  3. 3.
    Schreier, R.: MATLAB Central > File Exchange > Controls and Systems Modeling > Control Design > delsig, http://www.mathworks.com

Copyright information

© Springer-Verlag Berlin Heidelberg 2004

Authors and Affiliations

  • Ralf Ludewig
    • 1
  • Oliver Soffke
    • 1
  • Peter Zipf
    • 1
  • Manfred Glesner
    • 1
  • Kong Pang Pun
    • 2
  • Kuen Hung Tsoi
    • 2
  • Kin Hong Lee
    • 2
  • Philip Leong
    • 2
  1. 1.Institute of Microelectronic SystemsDarmstadt University of TechnologyGermany
  2. 2.Department of Computer Science and EngineeringChinese University of Hong KongShatin, NT, HK

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