A Digital Receiver Architecture for Bluetooth in 0.25- $\mu$ m CMOS Technology and Beyond
André Neubauer, M. Hammes · IEEE Transactions on Circuits and Systems I Fundamental Theory and Applications · 2007
A digital receiver architecture for short-range communications systems like Bluetooth is presented. The architecture is tailored to a highly integrated Bluetooth single-chip integrated circuit (IC) and can easily be adapted to other communications systems using a Gaussian frequency-shift keying (GFSK ) modulation scheme. The single-chip IC integrates the complete digital baseband and radio frequency (RF) functionality on a single die and is realized in a 0.25-$\mu$m complementary metal–oxide–semiconductor (CMOS) technology targeted for cost efficiency. The superior performance of this digital receiver architecture compared to the state-of-the-art short-range communications receivers is shown. Simulation and measurement results are presented showing a receiver sensitivity of${-}$87 dBm and excellent co-channel and adjacent channel interference performance.