Digitally Controlled 'Programmable' Active Filters.

Abstract

In this research a general purpose digitally controlled analog filter is presented. The novel design is a cascade of second-order sections that are individually programmed to achieve any filtering toplogies. Two-binary words are used to control the pole frequency omega p and selectivity Qp of each section independently. Each second-order section is a Generalized-Immittance Converter (GIC) biquads which are known for their high stability and low active and passive sensitivity. CMOS switches are used to electronically relocate the minimum number of passive elements to achieve function programmability. Switches are also used to select the number of cascaded sections to realize higher order transfer functions. (Theses)

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Document Details

Document Type
Technical Report
Publication Date
Dec 01, 1985
Accession Number
ADA164999

Entities

People

  • Panagiotis Andresakis

Organizations

  • Naval Postgraduate School

Tags

Communities of Interest

  • Advanced Electronics
  • C4I
  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Computer Programs
  • Computer Simulations
  • Computers
  • Converters
  • Electrical Engineering
  • Engineering
  • Filters
  • Filtration
  • Frequency
  • Frequency Agility
  • Frequency Shift
  • Linear Systems
  • Resonant Frequency
  • Schools
  • Signal Processing
  • Simulations
  • Transfer Functions

Readers

  • Approximation Theory.
  • Computer Science/Computer Engineering/Data Science/Digital Signal Processing.
  • Microwave Engineering.

Technology Areas

  • Microelectronics