Title :
A Direct Digital Frequency Synthesizer based on automatic nonuniform piecewise function generation
Author :
Rust, Jochen ; Paul, Steffen
Author_Institution :
Inst. of Electrodynamics & Microelectron. (ITEM), Univ. of Bremen, Bremen, Germany
Abstract :
As nowadays Direct Digital Frequency Synthesizers (DDFS) are used in a vast area of applications, the demand for simple and efficient hardware design and implementation methods is a highly important aspect. In this paper a new approach is introduced considering Automatic Nonuniform Piecewise linear function Approximation (ANPA). Automatic function generation is performed that enables quick HDL design by parameter specification in advance. For evaluation, several different configurations are simulated regarding approximation accuracy and complexity. In addition, logical and physical IC synthesis is performed for selected designs and their results are compared with actual references with respect to the common hardware constraints power, area and time.
Keywords :
approximation theory; direct digital synthesis; network synthesis; piecewise linear techniques; HDL design; automatic function generation; automatic nonuniform piecewise function generation; automatic nonuniform piecewise linear function approximation; direct digital frequency synthesizer; hardware design; logical IC synthesis; parameter specification; physical IC synthesis; Accuracy; Frequency synthesizers; Function approximation; Hardware; Hardware design languages; Integrated circuits; Direct Digital Frequency Synthesizer; Nonuniform Piecewise Function Approximation;
Conference_Titel :
Signal Processing Conference (EUSIPCO), 2012 Proceedings of the 20th European
Print_ISBN :
978-1-4673-1068-0
