@ARTICLE {1227,
author={J.G. Guilherme},
doi={},
journal={IEEE Journal of Solid-State Circuits},
title={A CMOS Analog-Digital Audio Processor for a Portable Radiotelephone},
year={1993},
month={May},
volume={28},
number={5},
pages={560-568},
ISSN={0018-9200}
}