Title :
A robust CMOS Bluetooth radio/modem system-on-chip
Author :
Westman, F. ; Jonsson, Fredrik ; Oberg, Tommy ; Hemani, Ahmed
Author_Institution :
Spirea AB, Stockholm
fDate :
11/1/2002 12:00:00 AM
Abstract :
The relaxed constraints on Bluetooth RF front-end implementation, together with the requirement of frequency hopping, result in a frequency offset and drift elimination or reduction problem. In the Spirea Bluetooth radio solution BlueTraC, a scalable digital demodulator is used, which gives a flexible, fast, and tunable frequency adjusting implementation. To increase the dynamic range the existing transmit chain is used to tune the LO during receive mode.
Keywords :
Bluetooth; CMOS integrated circuits; frequency hop communication; modems; system-on-chip; BlueTraC; Bluetooth; CMOS; RF front-end implementation; Spirea Bluetooth radio solution; drift elimination; dynamic range; frequency hopping; frequency offset; modem; receive mode; scalable digital demodulator; system-on-chip; transmit chain; tunable frequency adjusting implementation; Bluetooth; CMOS technology; DH-HEMTs; Frequency shift keying; Frequency synthesizers; Logic; Modems; Radio frequency; Robustness; System-on-a-chip;
Journal_Title :
Circuits and Devices Magazine, IEEE
DOI :
10.1109/MCD.2002.1175754
