Title :
A 115-mW, 0.5-μm CMOS GPS receiver with wide dynamic-range active filters
Author :
Shaeffer, Derek K. ; Shahani, Arvin R. ; Mohan, S.S. ; Samavati, Hirad ; Rategh, Hamid R. ; Del Mar Hershenson, Maria ; Xu, Min ; Yue, C. Patrick ; Eddleman, Daniel J. ; Lee, Thomas H.
Author_Institution :
Center for Integrated Syst., Stanford Univ., CA, USA
fDate :
12/1/1998 12:00:00 AM
Abstract :
This paper presents a 115-mW Global Positioning System radio receiver that is implemented in a 0.5-μm CMOS technology. The receiver includes the complete analog signal path, comprising a low-noise amplifier, I-Q mixers, on-chip active filters, and 1-bit analog-digital converters. In addition, it includes a low-power phase-locked loop that synthesizes the first local oscillator. The receiver achieves a 2.8-dB noise figure (prelimiter), a 56-dB spurious-free dynamic range, and a 17-dB signal-to-noise ratio for a noncoherent digital back-end implementation when detecting a signal power of -130 dBm at the radio-frequency input
Keywords :
CMOS integrated circuits; Global Positioning System; active filters; radio receivers; 0.5 micron; 115 mW; 2.8 dB; CMOS chip; GPS; Global Positioning System; I-Q mixer; active filter; analog signal path; analog-digital converter; dynamic range; local oscillator; low noise amplifier; noise figure; noncoherent digital back-end; phase locked loop; radio receiver; signal-to-noise ratio; Active filters; Analog-digital conversion; CMOS technology; Global Positioning System; Local oscillators; Low-noise amplifiers; Noise figure; Phase locked loops; Receivers; Signal synthesis;
Journal_Title :
Solid-State Circuits, IEEE Journal of
