Measuring and modeling the effects of substrate noise on the LNA for a CMOS GPS receiver

Citation
M. Xu et al., Measuring and modeling the effects of substrate noise on the LNA for a CMOS GPS receiver, IEEE J SOLI, 36(3), 2001, pp. 473-485
Citations number
20
Categorie Soggetti
Eletrical & Eletronics Engineeing
Journal title
IEEE JOURNAL OF SOLID-STATE CIRCUITS
ISSN journal
00189200 → ACNP
Volume
36
Issue
3
Year of publication
2001
Pages
473 - 485
Database
ISI
SICI code
0018-9200(200103)36:3<473:MAMTEO>2.0.ZU;2-0
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 analyti cally and experimentally. A frequency-domain approach has been used to mode l 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.