Title :
Measuring and modeling the effects of substrate noise on the LNA for a CMOS GPS receiver
Author :
Xu, Min ; Su, David K. ; Shaeffer, Derek K. ; Lee, Thomas H. ; Wooley, Bruce A.
Author_Institution :
Center for Integrated Syst., Stanford Univ., CA, USA
fDate :
3/1/2001 12:00:00 AM
Abstract :
The influence of substrate noise coupling on the performance of a low-noise amplifier (LNA) for a CMOS GPS receiver has been investigated both analytically and experimentally. A frequency-domain approach has been used to model both noise injection into the substrate from digital circuitry integrated on the same chip and the mechanisms by which that noise can affect analog circuit behavior. The results of this study reveal that substrate noise can modulate the LNA input signal as well as couple directly to the amplifier´s output
Keywords :
CMOS analogue integrated circuits; Global Positioning System; amplifiers; integrated circuit modelling; integrated circuit noise; radio receivers; CMOS GPS receiver; analog circuit; digital circuit; frequency domain; low-noise amplifier; substrate noise coupling; Analog circuits; CMOS technology; Circuit noise; Coupling circuits; Crosstalk; Global Positioning System; Integrated circuit noise; Noise measurement; Semiconductor device modeling; Substrates;
Journal_Title :
Solid-State Circuits, IEEE Journal of
