Observations Concerning the Generation of Spurious Tones in Digital Delta-Sigma Modulators Followed by a Memoryless Nonlinearity

Observations Concerning the Generation of Spurious Tones in Digital Delta-Sigma Modulators Followed by a Memoryless Nonlinearity

In mixed-signal systems, nonlinear distortion due to nonideal analog circuitry can act on quantized digital sequences, giving rise to spurious tones. In this brief, generation of spurious tones in digital delta-sigma modulators, followed by memoryless nonlinearity, is investigated. Inherent modulato...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Veröffentlicht in:IEEE transactions on circuits and systems. II, Express briefs Express briefs, 2011-11, Vol.58 (11), p.714-718
Hauptverfasser: Hosseini, K., Fitzgibbon, B., Kennedy, M. P.
Format: Artikel
Sprache:eng
Schlagworte:
Delta-sigma modulation
fractional-N frequency synthesizer
Multi-stage noise shaping
Noise measurement
Nonlinear distortion
Phase locked loops
Quantization
Time domain analysis
Online-Zugang:Volltext bestellen
Tags: Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
Beschreibung
Zusammenfassung:In mixed-signal systems, nonlinear distortion due to nonideal analog circuitry can act on quantized digital sequences, giving rise to spurious tones. In this brief, generation of spurious tones in digital delta-sigma modulators, followed by memoryless nonlinearity, is investigated. Inherent modulator periodicity that persists even with the use of least-significant-bit dither is identified.
ISSN:1549-7747
1558-3791
DOI:10.1109/TCSII.2011.2164960