Nowe podejście do projektowania bezpośredniego syntezatora cyfrowego o małej złożoności

Translated title of the contribution: A new approach to the design of low-complexity direct digital frequency synthesizer

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

A low-complexity direct digital frequency synthesizer based on linear interpolation method is presented in this paper. The proposed architecture employs a new technique to derive the slope coefficients at the first sample of each segment's interval thereby eliminating the ROM which stores those values. ROM elimination has resulted in significant logic element saving and simplified the whole DDFS structure. The proposed DDFS has been analyzed using MATLAB and tested over entire Nyquist frequency range. The spurious free dynamic range (SFDR) of synthesized sinusoid achieved is 84 dBc. The resultant low complexity architecture along with high spectral purity synthesized signal meets the specifications of recent portable battery-driven products.

Original languageUndefined/Unknown
Pages (from-to)157-160
Number of pages4
JournalPrzeglad Elektrotechniczny
Volume89
Issue number5
Publication statusPublished - 2013

Fingerprint

Frequency synthesizers
ROM
MATLAB
Interpolation
Specifications

Keywords

  • DDS
  • Direct digital frequency synthesizer
  • Piecewise linear approximation
  • ROM-less DDFS

ASJC Scopus subject areas

  • Electrical and Electronic Engineering

Cite this

Nowe podejście do projektowania bezpośredniego syntezatora cyfrowego o małej złożoności. / Omran, Qahtan Khalaf; Islam, Mohammad Tariqul; Misran, Norbahiah.

In: Przeglad Elektrotechniczny, Vol. 89, No. 5, 2013, p. 157-160.

Research output: Contribution to journalArticle

@article{325579c138074754a033ecb8754b4592,
title = "Nowe podejście do projektowania bezpośredniego syntezatora cyfrowego o małej złożoności",
abstract = "A low-complexity direct digital frequency synthesizer based on linear interpolation method is presented in this paper. The proposed architecture employs a new technique to derive the slope coefficients at the first sample of each segment's interval thereby eliminating the ROM which stores those values. ROM elimination has resulted in significant logic element saving and simplified the whole DDFS structure. The proposed DDFS has been analyzed using MATLAB and tested over entire Nyquist frequency range. The spurious free dynamic range (SFDR) of synthesized sinusoid achieved is 84 dBc. The resultant low complexity architecture along with high spectral purity synthesized signal meets the specifications of recent portable battery-driven products.",
keywords = "DDS, Direct digital frequency synthesizer, Piecewise linear approximation, ROM-less DDFS",
author = "Omran, {Qahtan Khalaf} and Islam, {Mohammad Tariqul} and Norbahiah Misran",
year = "2013",
language = "Undefined/Unknown",
volume = "89",
pages = "157--160",
journal = "Przeglad Elektrotechniczny",
issn = "0033-2097",
publisher = "Wydawnictwo SIGMA - N O T Sp. z o.o.",
number = "5",

}

TY - JOUR

T1 - Nowe podejście do projektowania bezpośredniego syntezatora cyfrowego o małej złożoności

AU - Omran, Qahtan Khalaf

AU - Islam, Mohammad Tariqul

AU - Misran, Norbahiah

PY - 2013

Y1 - 2013

N2 - A low-complexity direct digital frequency synthesizer based on linear interpolation method is presented in this paper. The proposed architecture employs a new technique to derive the slope coefficients at the first sample of each segment's interval thereby eliminating the ROM which stores those values. ROM elimination has resulted in significant logic element saving and simplified the whole DDFS structure. The proposed DDFS has been analyzed using MATLAB and tested over entire Nyquist frequency range. The spurious free dynamic range (SFDR) of synthesized sinusoid achieved is 84 dBc. The resultant low complexity architecture along with high spectral purity synthesized signal meets the specifications of recent portable battery-driven products.

AB - A low-complexity direct digital frequency synthesizer based on linear interpolation method is presented in this paper. The proposed architecture employs a new technique to derive the slope coefficients at the first sample of each segment's interval thereby eliminating the ROM which stores those values. ROM elimination has resulted in significant logic element saving and simplified the whole DDFS structure. The proposed DDFS has been analyzed using MATLAB and tested over entire Nyquist frequency range. The spurious free dynamic range (SFDR) of synthesized sinusoid achieved is 84 dBc. The resultant low complexity architecture along with high spectral purity synthesized signal meets the specifications of recent portable battery-driven products.

KW - DDS

KW - Direct digital frequency synthesizer

KW - Piecewise linear approximation

KW - ROM-less DDFS

UR - http://www.scopus.com/inward/record.url?scp=84877089374&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84877089374&partnerID=8YFLogxK

M3 - Article

AN - SCOPUS:84877089374

VL - 89

SP - 157

EP - 160

JO - Przeglad Elektrotechniczny

JF - Przeglad Elektrotechniczny

SN - 0033-2097

IS - 5

ER -