Low expense architectures for a dynamic spectrum analyzer based on SC-filters

Author

Marschner, Uwe ; Fischer, Wolf Joachim ; Kranz, Emst Georg

Author_Institution

Lab. of Semicond. & Microsystems Technol., Tech. Univ. Dresden, Germany

Volume

2

fYear

1998

fDate

31 May-3 Jun 1998

Firstpage

276

Abstract

In this paper new architectures for a dynamic spectrum analyzer are presented. The basis of the spectrum analyzer is a Switched Capacitor (SC) filter which is periodically reprogrammed or tuned by a change of the clock frequency. For a small reprogramming cycle time, a hyperbolic change of the clock frequency is applied. In the first part of the paper the effects of a stepwise and continuous reprogramming are investigated. In the second part analog and digital hyperbolic clock generators are presented

Keywords

analogue circuits; clocks; digital circuits; programmable filters; signal generators; spectral analysers; switched capacitor filters; timing; timing circuits; SC-filters; analog hyperbolic clock generators; clock frequency; continuous reprogramming; digital hyperbolic clock generators; dynamic spectrum analyzer; low expense architectures; reprogramming cycle time; stepwise reprogramming; switched-capacitor filter; Band pass filters; Capacitors; Chebyshev approximation; Circuits; Clocks; Frequency; Laboratories; Passband; Q factor; Spectral analysis;

fLanguage

English

Publisher

ieee

Conference_Titel

Circuits and Systems, 1998. ISCAS '98. Proceedings of the 1998 IEEE International Symposium on

Conference_Location

Monterey, CA

Print_ISBN

0-7803-4455-3

Type

conf

DOI

10.1109/ISCAS.1998.706907

Filename

706907