Estimation and Analysis of Higher-Order Harmonics in Advanced Integrated Circuits to Implement Noise-Free Future-Generation Micro- and Nanoelectromechanical Systems.

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  • Additional Information
    • Source:
      Publisher: MDPI Country of Publication: Switzerland NLM ID: 101640903 Publication Model: Electronic Cited Medium: Print ISSN: 2072-666X (Print) Linking ISSN: 2072666X NLM ISO Abbreviation: Micromachines (Basel) Subsets: PubMed not MEDLINE
    • Publication Information:
      Original Publication: Basel, Switzerland : MDPI, [2010]-
    • Abstract:
      This work deals with the analysis of spectrum generation from advanced integrated circuits in order to better understand how to suppress the generation of high harmonics, especially in a given frequency band, to design and implement noise-free systems. At higher frequencies, the spectral components of signals with sharp edges contain more energy. However, current closed-form expressions have become increasingly unwieldy to compute higher-order harmonics. The study of spectrum generation provides an insight into suppressing higher-order harmonics (10th order and above), especially in a given frequency band. In this work, we discussed the influence of transistor model quality and input signal on estimates of the harmonic contents of switching waveforms. Accurate estimates of harmonic contents are essential in the design of highly integrated micro- and nanoelectromechanical systems. This paper provides a comparative analysis of various flip-flop/latch topologies on different process technologies, i.e., 130 and 65 nm. An FFT plot of the simulated results signifies that the steeper the spectrum roll-off, the lesser the content of higher-order harmonics. Furthermore, the results of the comparison illustrate the improvement in the rise time, fall time, clock-Q delay and spectrum roll-off on the better selection of slow-changing input signals and more accurate transistor models.
    • References:
      Nature. 2011 Nov 16;479(7373):310-6. (PMID: 22094690)
      Nature. 2016 Feb 11;530(7589):144-7. (PMID: 26863965)
      Nature. 2021 Mar;591(7848):43-53. (PMID: 33658691)
    • Contributed Indexing:
      Keywords: digital noise; flip-flops; integrated circuits; latches; micro- and nanosystems; switching harmonics
    • Publication Date:
      Date Created: 20210602 Latest Revision: 20210615
    • Publication Date:
      20240829
    • Accession Number:
      PMC8151574
    • Accession Number:
      10.3390/mi12050541
    • Accession Number:
      34068549