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Mit einem einen Gleichanteil aufweisenden Modulationssignal modulierbare PLL-Schaltung

PLL circuit which can be modulated by a modulation signal comprising a DC component
 
: Heuberger, A.; Wallrapp, L.; Seitzer, D.

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Frontpage ()

DE 1992-4214385 A: 19920430
DE 1992-4214385 A: 19920430
EP 1993-905341 AW: 19930311
DE 4214385 C1: 19930805
EP 630535 B1: 19950830
H03C0003
Deutsch
Patent, Elektronische Publikation
Fraunhofer IIS ()

Abstract
A PLL circuit which can be modulated by a modulation circuit comprising a DC component has a voltage- controlled main oscillator, a loop divider, a phase comparator and a loop filter. The comparison frequency signal for the phase comparator is derived from the modulation signal by a first compensation filter which is followed by a voltage-controlled reference oscillator and a reference divider. The voltage- controlled main oscillator is controlled by the modulation signal via a second compensation filter followed by a data lowpass filter.

: http://publica.fraunhofer.de/dokumente/PX-24285.html