An electronically adjustable bandpass filter

An electronically adjustable bandpass filter

An electronically adjustable bandpass filter based on the state-variable configuration is developed such that independent control of center frequency, quality factor, and gain is achieved. Electronic tuning of these parameters is accomplished with operational transconductance amplifiers is subcircui...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: Hall, J.W., Connelly, J.A.
Format: Tagungsbericht
Sprache:eng
Schlagworte:
Active filters
Band pass filters
Dynamic range
Frequency
Potentiometers
Q factor
Resistors
Transconductance
Tunable circuits and devices
Voltage control
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Beschreibung
Zusammenfassung:An electronically adjustable bandpass filter based on the state-variable configuration is developed such that independent control of center frequency, quality factor, and gain is achieved. Electronic tuning of these parameters is accomplished with operational transconductance amplifiers is subcircuits which simulate floating resistors. Linearity of center frequency versus control input and relative independence are demonstrated for a wide input dynamic range.< >
DOI:10.1109/MWSCAS.1992.271175