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Difference-Equation-Based Digital Frequency Synthesizer

Author

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  • Lu-Ting Ko
  • Jwu-E. Chen
  • Yaw-Shih Shieh
  • Hsi-Chin Hsin
  • Tze-Yun Sung

Abstract

This paper presents a novel algorithm and architecture for digital frequency synthesis (DFS). It is based on a simple difference equation. Simulation results show that the proposed DFS algorithm is preferable to the conventional phase-locked-loop frequency synthesizer and the direct digital frequency synthesizer in terms of the spurious-free dynamic range (SFDR) and the peak-signal-to-noise ratio (PSNR). Specifically, the results of SFDR and PSNR are more than 186.91 dBc and 127.74 dB, respectively. Moreover, an efficient DFS architecture for VLSI implementation is also proposed, which has the advantage of saving hardware cost and power consumption.

Suggested Citation

  • Lu-Ting Ko & Jwu-E. Chen & Yaw-Shih Shieh & Hsi-Chin Hsin & Tze-Yun Sung, 2012. "Difference-Equation-Based Digital Frequency Synthesizer," Mathematical Problems in Engineering, Hindawi, vol. 2012, pages 1-12, May.
    • Handle: RePEc:hin:jnlmpe:784270
    DOI: 10.1155/2012/784270
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    Cited by:

    1. Oleksandr Misiats & Oleksandr Stanzhytskyi & Nung Kwan Yip, 2016. "Existence and Uniqueness of Invariant Measures for Stochastic Reaction–Diffusion Equations in Unbounded Domains," Journal of Theoretical Probability, Springer, vol. 29(3), pages 996-1026, September.

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