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

Aluthwala, Pasindu; Weste, N.; Adams, Andrew; Lehmann, Torsten; Parameswaran, Sri

doi:10.1109/iscas.2014.6865584

Cited by 15 publications

(3 citation statements)

References 7 publications

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“…The works in [3]- [7], [9], on the other hand, rely on digital circuitry and employ time-shifted versions of a digital square wave as the base signal for the harmonic cancellation. The generation of these time-shifted square-waves can be easily performed in the digital domain, while the scaling and combination of the different signals is carried out using some Digitalto-Analog architecture.…”

Section: Previous Workmentioning

confidence: 99%

“…The generation of these time-shifted square-waves can be easily performed in the digital domain, while the scaling and combination of the different signals is carried out using some Digitalto-Analog architecture. Thus, [3], [4] proposes a simple digital counter for generating the time-shifted signals. These signals are then scaled and added using a complete current-steering DAC circuit.…”

Section: Previous Workmentioning

confidence: 99%

“…Harmonic cancellation techniques are based on combining a set of delayed and weighted versions of a given periodic signal in order to cancel out the most significant undesired harmonic components in the original periodic signal [10]. The technique can be successfully applied using digital square waves as the original periodic signal [3]- [9]. This makes this technique very suitable for a digitalfriendly integration of AMS-RF test techniques.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Analysis and mitigation of timing inaccuracies in high-frequency on-chip sinusoidal signal generators based on harmonic cancellation

Mamgain

Barragán

Mir

2021

2021 IEEE European Test Symposium (ETS)

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On-chip sinusoidal signal generators are a key element for enabling a wide variety of DfT and BIST applications for AMS-RF integrated circuits. Harmonic cancellation techniques have been recently proposed for the efficient implementation of high-quality embedded sinusoidal signal generators. However, harmonic cancellation techniques, based on phase-shifting and combining a set of periodic signals, rely on precise and accurate phase-shift control which makes them very sensitive to timing issues due to mismatch, noise, etc. Timing issues can severely limit the performance of these generators especially in high-frequency applications where precise timing becomes challenging. In this paper, we analyze the effects of timing inaccuracies on highspeed harmonic cancellation generators and we propose circuit techniques for mitigating them. Electrical simulation results on a 1.45 GHz sinusoidal signal generator implemented in ST 28 nm FDSOI technology are provided to validate our proposals.

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Section: Previous Workmentioning

confidence: 99%

Section: Previous Workmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Analysis and mitigation of timing inaccuracies in high-frequency on-chip sinusoidal signal generators based on harmonic cancellation

Mamgain

Barragán

Mir

2021

2021 IEEE European Test Symposium (ETS)

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Automatic tuning of digitally-controllable positive-feedback OTAs in continuous-time sigma–delta modulators

Irfansyah

Nicholson

Iberzanov

et al. 2016

Analog Integr Circ Sig Process

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On-chip Generation of Sine-wave Summing Digital Signals: an Analytic Study Considering Implementation Constraints

et al. 2018

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Abstract-In the context of biosensor as much as Built-In-Self Test (BIST), on-chip sine-wave signal generation is a recurring research topic. Considering the implementation constraints, it implies a trade-off between the amount of resources and the signal quality. An attractive solution consists in combining several digital signals to build this analog sine-wave. The objective of this paper is to give an analytic study of various potential digitalbased solutions. Thanks to this study, we prove that the technique consisting in setting the phase shifts and various amplitude values of the square-wave signals is the most efficient approach. This study allows the selection of the optimal square-wave signal parameters to cancel low-order harmonics of the generated signal. We proposed a solution for specification-oriented definition of the architecture.

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

Cited by 15 publications

References 7 publications

Analysis and mitigation of timing inaccuracies in high-frequency on-chip sinusoidal signal generators based on harmonic cancellation

Analysis and mitigation of timing inaccuracies in high-frequency on-chip sinusoidal signal generators based on harmonic cancellation

Automatic tuning of digitally-controllable positive-feedback OTAs in continuous-time sigma–delta modulators

On-chip Generation of Sine-wave Summing Digital Signals: an Analytic Study Considering Implementation Constraints

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