Back to Search
Start Over
Time-Based High-Pass, Low-Pass, Shelf, and Notch Filters.
- Source :
- Electronics & Electrical Engineering; 2023, Vol. 29 Issue 6, p33-40, 8p
- Publication Year :
- 2023
-
Abstract
- This paper presents formulations for time-based first-order and second-order high-pass, shelf, and notch filters. These formulations are an extension to the existing literature where low-pass filters are already developed using a multiphase controlled oscillator in conjunction with a phase detector and charge pump. The presented high-pass filter expands the circuit by introducing a current-controlled delay line (CCDL) that provides a direct path from input to output. By combining the high-pass filter with the low-pass filter, we show that shelf and notch filters can be obtained without an increase in circuit complexity compared to the high-pass filter. The results show good matching between the ideal small signal and the simulated time-based large signal frequency response. The simulated of total harmonic distortion for the filters shows an increase in distortion due to the nonlinearities introduced by the CCDL for the high-pass, notch, and shelf filter compared to the existing low-pass filter. The derivation of the new filter types allows the creation of complex high-order time-based filters by combining multiple first- or second-order filters. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 13921215
- Volume :
- 29
- Issue :
- 6
- Database :
- Supplemental Index
- Journal :
- Electronics & Electrical Engineering
- Publication Type :
- Academic Journal
- Accession number :
- 174489184
- Full Text :
- https://doi.org/10.5755/j02.eie.35277