Publication detail

Dual-parameter control of the pole frequency in case of universal filter with MCDU elements

JEŘÁBEK, J. ŠOTNER, R. HERENCSÁR, N. POLÁK, J. DVOŘÁK, J. KOTON, J.

Original Title

Dual-parameter control of the pole frequency in case of universal filter with MCDU elements

Type

journal article in Web of Science

Language

English

Original Abstract

This paper presents an universal filter with control of the pole frequency by two mutually independent parameters - current gain (B) and intrinsic resistance (R x) in frame of two modified current differencing unit (MCDU) active elements. This type of control extends and also improves features of the tuning range and is referred to as dual-parameter control. The current-mode filter is of the second order and the required type of the response (low pass, inverting band pass, high pass, band reject and all pass) is obtained by proper selection/combination of input(s) - this filter is of the multiple-input single-output type. The filter employs two capacitors, two MCDUs, each of them with four controllable parameters and one multiple-output current follower. The paper includes tuning range analysis, the simulation results with behavioral models and also laboratory measurement results with the same models. Moreover, designed transistor-level structures of both the active elements proposed in ON Semiconductor I3T CMOS 0.35 um technology that were used for final simulations confirm the workability and features of the designed concept.

Keywords

Current differencing unit, Dual-parameter control, Electronic control, MCDU, Universal filter.

Authors

JEŘÁBEK, J.; ŠOTNER, R.; HERENCSÁR, N.; POLÁK, J.; DVOŘÁK, J.; KOTON, J.

Released

1. 12. 2016

Publisher

Springer

ISBN

0925-1030

Periodical

ANALOG INTEGRATED CIRCUITS AND SIGNAL PROCESSING

Year of study

89

Number

3

State

Kingdom of the Netherlands

Pages from

705

Pages to

718

Pages count

14

URL

https://link.springer.com/article/10.1007%2Fs10470-016-0756-7

Full text in the Digital Library

http://hdl.handle.net/11012/69955

BibTex

@article{BUT125170,
  author="Jan {Jeřábek} and Roman {Šotner} and Norbert {Herencsár} and Josef {Polák} and Jan {Dvořák} and Jaroslav {Koton}",
  title="Dual-parameter control of the pole frequency in case of universal filter with MCDU elements",
  journal="ANALOG INTEGRATED CIRCUITS AND SIGNAL PROCESSING",
  year="2016",
  volume="89",
  number="3",
  pages="705--718",
  doi="10.1007/s10470-016-0756-7",
  issn="0925-1030",
  url="https://link.springer.com/article/10.1007%2Fs10470-016-0756-7"
}