Title :
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
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 3rd-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;
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
DOI :
10.1109/ECTICon.2012.6254273
