Analysis of clock jitter in switched-capacitor systems

Author

Beex, A.A. ; Fargues, Monique P.

Author_Institution

Bradley Dept. of Electr. Eng., Virginia Polytech. Inst. & State Univ., Blacksburg, VA, USA

Volume

39

Issue

7

fYear

1992

fDate

7/1/1992 12:00:00 AM

Firstpage

506

Lastpage

519

Abstract

The effect of periodic clock jitter in switched-capacitor filters is analyzed, extending a previously introduced state-space approach. This procedure facilitates the evaluation of the effects of the internally generated noise sources upon the output spectral density. This makes it possible to evaluate the sensitivity of a specific structure to its switched-capacitor and operational amplifier noise sources. The application of the results to a switched-capacitor integrator shows that the output noise level may be very sensitive to the jitter amplitude and indicates the need for high-precision clock circuitry to minimize the effects of internally generated noise on the switched capacitor filter output

Keywords

integrating circuits; noise; state-space methods; switched capacitor filters; clock jitter; high-precision clock circuitry; internally generated noise sources; jitter amplitude; operational amplifier noise sources; output noise level; state-space approach; switched-capacitor filters; switched-capacitor integrator; switched-capacitor systems; Clocks; Digital filters; Frequency; Integrated circuit noise; Jitter; Noise generators; Noise level; Switched capacitor circuits; Switching circuits; Voltage;

fLanguage

English

Journal_Title

Circuits and Systems I: Fundamental Theory and Applications, IEEE Transactions on

Publisher

ieee

ISSN

1057-7122

Type

jour

DOI

10.1109/81.257284

Filename

257284