Tunable tracking filter

An integrated tuner circuit ( 20 ) with an arbitrary IF output. The tuner includes an integrated circuit with a fixed-frequency control loop ( 30 ) and a matched external variable capacitance Ct, to achieve tracking of a tuned LC band-pass filter ( 10 ) with an arbitrary oscillator.

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Bibliographische Detailangaben
1. Verfasser:	RUITENBURG LEONARDUS J.M
Format:	Patent
Sprache:	eng
Schlagworte:	BASIC ELECTRONIC CIRCUITRY CONVERSION OR DISTRIBUTION OF ELECTRIC POWER ELECTRICITY EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS GENERATION SELECTING RESONANT CIRCUITS TUNING RESONANT CIRCUITS
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Beschreibung
Zusammenfassung:	An integrated tuner circuit ( 20 ) with an arbitrary IF output. The tuner includes an integrated circuit with a fixed-frequency control loop ( 30 ) and a matched external variable capacitance Ct, to achieve tracking of a tuned LC band-pass filter ( 10 ) with an arbitrary oscillator.