Impact of charge injection on system-level performance of a discrete-time GSM receiver

Author

Mina, R. ; Grasset, J.C. ; Naviner, J.-F.

Author_Institution

STMicroelectron., Grenoble

fYear

2006

fDate

10-13 Dec. 2006

Firstpage

494

Lastpage

497

Abstract

The impact of charge injection on system-level performance of discrete-time systems is studied. A new model for MOS switches is derived from Y-parameter simulation and validated with less than 1% difference in respect to transistor. It is a SPICE-based model that helps analog system designers to predict the effects of charge injection on circuit performance. In this work, the model is tested on a discrete-time GSM receiver. The functions analyzed are the mixer stage and the channel selection filter. Results showed extra 0.5 dB side-band attenuation and 0.6 dB less out-of-band rejection in the frequency response of the filter stage.

Keywords

cellular radio; charge injection; discrete time systems; field effect transistor switches; radio receivers; switched capacitor networks; MOS switches; SPICE-based model; Y-parameter simulation; analog system designers; channel selection filter; charge injection; discrete-time GSM receiver; mixer stage; system-level performance; Attenuation; Circuit optimization; Circuit simulation; Circuit testing; Filters; Frequency response; GSM; MOSFETs; Predictive models; Switches;

fLanguage

English

Publisher

ieee

Conference_Titel

Electronics, Circuits and Systems, 2006. ICECS '06. 13th IEEE International Conference on

Conference_Location

Nice

Print_ISBN

1-4244-0395-2

Electronic_ISBN

1-4244-0395-2

Type

conf

DOI

10.1109/ICECS.2006.379833

Filename

4263411