Methods to improve the performance of quadrature phase-to-amplitude conversion based on Taylor series approximation

Author

Palomaki, Kalle I. ; Niittylahti, Jarkko

Author_Institution

Digital & Comput. Syst. Lab., Tampere Univ. of Technol., Finland

Volume

1

fYear

2000

fDate

2000

Firstpage

14

Abstract

This paper presents a Taylor series approximation based method for digital sine and cosine phase-to-amplitude conversion. The performance of the phase-to-amplitude conversion and the spurious free dynamic range (SFDR) of the output signal are improved by applying methods similar to those used in direct digital frequency synthesizers for ROM compression. Finally, simulation results according to the number of approximation terms and the amplitude bit width are presented and compared with other phase-to-amplitude conversion methods

Keywords

approximation theory; direct digital synthesis; series (mathematics); signal processing; Taylor series approximation based method; amplitude bit width; digital cosine phase-to-amplitude conversion; digital sine phase-to-amplitude conversion; direct digital frequency synthesizer; frequency synthesis; output signal SFDR; quadrature phase-to-amplitude conversion; spurious free dynamic range; Clocks; Dynamic range; Frequency synthesizers; Gold; Integrated circuit synthesis; Integrated circuit technology; Laboratories; Modems; Read only memory; Taylor series;

fLanguage

English

Publisher

ieee

Conference_Titel

Circuits and Systems, 2000. Proceedings of the 43rd IEEE Midwest Symposium on

Conference_Location

Lansing, MI

Print_ISBN

0-7803-6475-9

Type

conf

DOI

10.1109/MWSCAS.2000.951576

Filename

951576