A compact All-NPN fully-differential ladder log-companding filter

Author

Chanapromma, Chaiyan ; Pookrongtong, Nattapon ; Mahattanakul, Jirayuth

Author_Institution

Fac. of Ind. Technol., Uttaradit Rajabhat Univ. Muang, Uttaradit, Thailand

fYear

2012

fDate

16-18 May 2012

Firstpage

1

Lastpage

4

Abstract

This paper presents compact structure of the ladder-based upon fully-differential Log-companding filter in [14]. The proposed filter structure is based on the exponential-state-space integrators with compatible input and output voltage levels. Based upon the proposed structure, the derivation of the all NPN-only 3^rd-order fully-differential Log-companding Chebyshev low-pass filter is demonstrated. Simulation results of the demonstrated filters are given.

Keywords

Chebyshev filters; ladder filters; low-pass filters; compact all-NPN fully-differential ladder log-companding filter; exponential-state-space integrators; third-order Chebyshev low-pass filter; voltage level; Band pass filters; Educational institutions; Filtering theory; Low pass filters; Power harmonic filters; Transistors; companding filter; fully-differential; log domain; low voltage; n-p-n transistor;

fLanguage

English

Publisher

ieee

Conference_Titel

Electrical Engineering/Electronics, Computer, Telecommunications and Information Technology (ECTI-CON), 2012 9th International Conference on

Conference_Location

Phetchaburi

Print_ISBN

978-1-4673-2026-9

Type

conf

DOI

10.1109/ECTICon.2012.6254273

Filename

6254273