A new method of spur reduction in phase truncation for DDS

Jianming Zhou

doi:10.1587/elex.5.915

A new method of spur reduction in phase truncation for DDS

Jianming Zhou^*

^*Corresponding author for this work

School of Integrated Circuits and Electronics

Research output: Contribution to journal › Article › peer-review

4 Citations (Scopus)

Abstract

DDS (Direct digital synthesizer) is widely used for frequency synthesis. The factors that contribute to spurious signals are analyzed. Adding a random signal to DDS system was used for spurious reduction formerly. Those methods assuredly reduce the spurs while the noise floor of signals is worsened. A new spurious reduction technique based on two DDS is proposed. The first DDS generates the conventional sine signal. The other DDS produces the error signal which compensates for the phase truncation error in traditional DDS system. A spurious reduction circuit has been developed. The experimental result indicates that the spurious signal due to phase truncation can be reduced 8dBc at least.

Original language	English
Pages (from-to)	915-920
Number of pages	6
Journal	IEICE Electronics Express
Volume	5
Issue number	21
DOIs	https://doi.org/10.1587/elex.5.915
Publication status	Published - 10 Nov 2008

Keywords

Direct digital synthesizer (DDS)
Error compensation
Phase truncation
Spurious reduction

Access to Document

10.1587/elex.5.915

Cite this

@article{ef3b71103d1a4ca1b065024e54c7a62a,

title = "A new method of spur reduction in phase truncation for DDS",

abstract = "DDS (Direct digital synthesizer) is widely used for frequency synthesis. The factors that contribute to spurious signals are analyzed. Adding a random signal to DDS system was used for spurious reduction formerly. Those methods assuredly reduce the spurs while the noise floor of signals is worsened. A new spurious reduction technique based on two DDS is proposed. The first DDS generates the conventional sine signal. The other DDS produces the error signal which compensates for the phase truncation error in traditional DDS system. A spurious reduction circuit has been developed. The experimental result indicates that the spurious signal due to phase truncation can be reduced 8dBc at least.",

keywords = "Direct digital synthesizer (DDS), Error compensation, Phase truncation, Spurious reduction",

author = "Jianming Zhou",

year = "2008",

month = nov,

day = "10",

doi = "10.1587/elex.5.915",

language = "English",

volume = "5",

pages = "915--920",

journal = "IEICE Electronics Express",

issn = "1349-2543",

publisher = "The Institute of Electronics, Information and Communication Engineers (IEICE)",

number = "21",

}

TY - JOUR

T1 - A new method of spur reduction in phase truncation for DDS

AU - Zhou, Jianming

PY - 2008/11/10

Y1 - 2008/11/10

N2 - DDS (Direct digital synthesizer) is widely used for frequency synthesis. The factors that contribute to spurious signals are analyzed. Adding a random signal to DDS system was used for spurious reduction formerly. Those methods assuredly reduce the spurs while the noise floor of signals is worsened. A new spurious reduction technique based on two DDS is proposed. The first DDS generates the conventional sine signal. The other DDS produces the error signal which compensates for the phase truncation error in traditional DDS system. A spurious reduction circuit has been developed. The experimental result indicates that the spurious signal due to phase truncation can be reduced 8dBc at least.

AB - DDS (Direct digital synthesizer) is widely used for frequency synthesis. The factors that contribute to spurious signals are analyzed. Adding a random signal to DDS system was used for spurious reduction formerly. Those methods assuredly reduce the spurs while the noise floor of signals is worsened. A new spurious reduction technique based on two DDS is proposed. The first DDS generates the conventional sine signal. The other DDS produces the error signal which compensates for the phase truncation error in traditional DDS system. A spurious reduction circuit has been developed. The experimental result indicates that the spurious signal due to phase truncation can be reduced 8dBc at least.

KW - Direct digital synthesizer (DDS)

KW - Error compensation

KW - Phase truncation

KW - Spurious reduction

UR - http://www.scopus.com/inward/record.url?scp=56749169012&partnerID=8YFLogxK

U2 - 10.1587/elex.5.915

DO - 10.1587/elex.5.915

M3 - Article

AN - SCOPUS:56749169012

SN - 1349-2543

VL - 5

SP - 915

EP - 920

JO - IEICE Electronics Express

JF - IEICE Electronics Express

IS - 21

ER -

A new method of spur reduction in phase truncation for DDS

Abstract

Keywords

Access to Document

Other files and links

Fingerprint

Cite this