Title :
Oscillation-Based Test in High-Order Switched Capacitors Ladder Filters
Author :
Peretti, Gabriela ; Romero, Eduardo ; Marqués, Carlos
Author_Institution :
Electron. & Control Res. Group, Univ. Tecnologica Nacional, Villa Maria
Abstract :
The test of high-order switched-capacitors (SC) ladder filters by means of the oscillation-based test (OBT) is presented in this work. Particularly, we addressed the problem of testing 5th and 7 th order low-pass Butterworth and elliptic filters. We focused our attention on the ability of OBT for detecting deviation-faults in the capacitors present in the filter structure. The describing function approach is used for analyzing the system, obtaining a very good prediction of the oscillation parameters for all the oscillation modes employed in the paper
Keywords :
Butterworth filters; circuit oscillations; circuit testing; describing functions; elliptic filters; fault diagnosis; ladder filters; low-pass filters; switched capacitor filters; SC ladder filters; describing function approach; deviation-fault detection; elliptic filters; fifth order low-pass Butterworth filters; high-order switched capacitors ladder filters; oscillation-based test; seventh order low-pass Butterworth filters; Attenuation; Capacitors; Circuit faults; Circuit testing; Electronic equipment testing; Filters; Frequency; Oscillators; Passband; System testing;
Conference_Titel :
Devices, Circuits and Systems, Proceedings of the 6th International Caribbean Conference on
Conference_Location :
Playa del Carmen
Print_ISBN :
1-4244-0041-4
Electronic_ISBN :
1-4244-0042-2
DOI :
10.1109/ICCDCS.2006.250838
