A low-power efficient direct digital frequency synthesizer based on new two-level lookup table

Shu Chung Yi, Kun Tse Lee, Jin Jia Chen, Chien Hung Lin

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

6 Citations (Scopus)

Abstract

This work presents a low power direct digital frequency synthesizer (DDFS) by using a new two-level lookup table algorithm. The algorithm uses trigonometric double angle formula to divide ROM lookup table into two parts. The ROM size of the proposed architecture is 25% less than that of conventional two-level table. The hardware complexity of the new DDFS architecture compared to the traditional two-level table DDFS can be omitted one multiplier. A synthesized 0.35-μm DDFS with a SFDR of - 80dB, runs up to 100MHz and consumes 81-mW at 3.0v. The power efficiency is 0.81-mW/MHz, which represents an enhancement of more than 38% compared to the conventional DDFS.

Original languageEnglish
Title of host publication2006 Canadian Conference on Electrical and Computer Engineering, CCECE'06
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages963-966
Number of pages4
ISBN (Print)1424400384, 9781424400386
DOIs
Publication statusPublished - 2006 Jan 1
Event2006 Canadian Conference on Electrical and Computer Engineering, CCECE'06 - Ottawa, ON, Canada
Duration: 2006 May 72006 May 10

Publication series

NameCanadian Conference on Electrical and Computer Engineering
ISSN (Print)0840-7789

Other

Other2006 Canadian Conference on Electrical and Computer Engineering, CCECE'06
CountryCanada
CityOttawa, ON
Period06-05-0706-05-10

All Science Journal Classification (ASJC) codes

  • Hardware and Architecture
  • Electrical and Electronic Engineering

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    Yi, S. C., Lee, K. T., Chen, J. J., & Lin, C. H. (2006). A low-power efficient direct digital frequency synthesizer based on new two-level lookup table. In 2006 Canadian Conference on Electrical and Computer Engineering, CCECE'06 (pp. 963-966). [4054824] (Canadian Conference on Electrical and Computer Engineering). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/CCECE.2006.277378