OVERSAMPLING ARCHITECTURE FOR ANALOG HARMONIC MODULATION

Authors
EDWARDS RT CAUWENBERGHS G
Citation
Rt. Edwards et G. Cauwenberghs, OVERSAMPLING ARCHITECTURE FOR ANALOG HARMONIC MODULATION, IEEE transactions on circuits and systems. 1, Fundamental theory andapplications, 43(8), 1996, pp. 696-698
Citations number
6
Categorie Soggetti
Engineering, Eletrical & Electronic
Journal title
IEEE transactions on circuits and systems. 1, Fundamental theory andapplications → ACNP
ISSN journal
10577122
Volume
43
Issue
8
Year of publication
1996
Pages
696 - 698
Database
ISI
SICI code
1057-7122(1996)43:8<696:OAFAHM>2.0.ZU;2-5
Abstract
We propose a technique for sinusoidal modulation of analog signals, wh ich requires neither multiplication nor analog sine wave generation, T he modulating signal is an oversampled representation of a sine in the form of a periodic binary sequence, optimized to minimize intermodula tion distortion, A 2-to-1 multiplexer performs the modulation multipli cation. With third-order low-pass filtering of the input signal, the t echnique achieves 60 dB of linear dynamic range for a sequence of leng th 256, conveniently generated with an 11-address decoder and an 8-b c ounter.