A Mixed-Signal GFSK Demodulator for Bluetooth
Journal
IEEE Transactions on Circuits and Systems II: Express Briefs
Journal Volume
53
Journal Issue
3
Pages
197-201
Date Issued
2006-03
Author(s)
C.-C. Chen
Abstract
A discrete-time mixed-signal Gaussian frequency-shift keying demodulator designed for a low intermediate frequency Bluetooth receiver performs FSK demodulation. Employing passive sampling and time-domain differentiation techniques, the demodulator performs quadrature demodulation while tolerating up to 200-kHz frequency offset. A distributed array of interleaved sampling circuits and a low-voltage multiplier allow both low-voltage operation and low power dissipation. Fabricated in a CMOS 0.25-µm technology, the demodulator only dissipates 6 mW from a 2-V power supply. © 2006, IEEE. All rights reserved.
Subjects
Bluetooth; Gaussian frequency-shift keying (GFSK) demodulator
Other Subjects
CMOS integrated circuits; Frequency shift keying; Signal receivers; Time domain analysis; Bluetooth; Gaussian frequency shift keying (GFSK) demodulator; Time domain differentiation; Demodulators
Type
journal article