Title :
A baseband integrated circuit for homodyne cordless phones
Author :
Comino, Vittorio ; Shulman, Dima ; Walker, Susan J. ; Kasturia, Sanjay ; Prise, Mihael
Author_Institution :
Wireless Technol. Res., Lucent Technol., Holmdel, NJ, USA
Abstract :
This paper presents a mixed signal circuit, which has been integrated in a triple metal, double poly, 0.8 μm CMOS technology and which realizes the baseband functions of a homodyne transceiver for cordless phone applications. The frequency hopped phone is a time division duplex system that uses π/4-QPSK modulation. Problems unique to direct conversion receivers are discussed, circuits are described and test results are given
Keywords :
CMOS integrated circuits; cordless telephone systems; frequency hop communication; homodyne detection; mixed analogue-digital integrated circuits; quadrature phase shift keying; transceivers; π/4-QPSK modulation; 0.8 micron; CMOS technology; baseband integrated circuit; direct conversion receivers; frequency hopped phone; homodyne cordless phones; homodyne transceiver; mixed signal circuit; time division duplex system; Baseband; CMOS technology; Circuit testing; Digital signal processing chips; Frequency conversion; Integrated circuit technology; RF signals; Radio frequency; Receivers; Signal processing;
Conference_Titel :
Custom Integrated Circuits Conference, 1998. Proceedings of the IEEE 1998
Conference_Location :
Santa Clara, CA
Print_ISBN :
0-7803-4292-5
DOI :
10.1109/CICC.1998.695011
