A simple digital architecture for a harmonic-cancelling sine-wave synthesizer

Pasindu Aluthwala, Neil Weste, Andrew Adams, Torsten Lehmann, Sri Parameswaran

Research output: Chapter in Book/Report/Conference proceedingConference proceeding contribution

12 Citations (Scopus)

Abstract

Sine-wave synthesizers are a core requirement in many electronic applications, such as communication systems, and test and verification of analog/mixed-signal electronic systems. In sine-wave synthesizers, there exists a compromise between output spectral purity and hardware complexity. Harmonic-cancelling sine-wave synthesizers (HCSSs) allow spectrally pure signal synthesis at low hardware cost, compared to conventional sine-wave synthesis approaches. In this paper, we propose a digital HCSS hardware architecture, which is simpler, more hardware efficient and more programmable compared to state of the art HCSSs. The proposed architecture has been verified through a prototype built from an FPGA and discrete components. Prototype results demonstrate 51.9 dBc spurious free dynamic range (SFDR) and an output frequency range from 100 Hz to 100 kHz.

Original languageEnglish
Title of host publicationIEEE International Symposium on Circuits and Systems : ISCAS 2014
Subtitle of host publicationproceedings
Place of PublicationPiscataway, NJ
PublisherInstitute of Electrical and Electronics Engineers (IEEE)
Pages2113-2116
Number of pages4
ISBN (Electronic)9781479934324, 9781479934317
ISBN (Print)9781479934331
DOIs
Publication statusPublished - 2014
Externally publishedYes
Event2014 IEEE International Symposium on Circuits and Systems, ISCAS 2014 - Melbourne, VIC, Australia
Duration: 1 Jun 20145 Jun 2014

Other

Other2014 IEEE International Symposium on Circuits and Systems, ISCAS 2014
CountryAustralia
CityMelbourne, VIC
Period1/06/145/06/14

Keywords

  • Sinusoids
  • digital-oscillator
  • low harmonic distortion

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