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US 5,856,762 AGranted
Phase-locked loop with course providing damping and natural frequency independence
AssigneeSiemens Aktiengesellschaft
InventorsHeinz Werker, Thomas Eichler, Dirk Scheideler
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Abstract
A phase-locked loop includes a switched phase detector, a loop filter and an oscillator connected in series, as well as a device for technology compensation, in particular a course control device. An operating point is adjusted during a starting phase of the phase-locked loop through the use of the course control device in such a way that the damping and natural frequency of the phase-locked loop is independent of fluctuations in technology parameters.
Claims13
A phase-locked loop, comprising:
- a switched phase detector;
- a loop filter connected in series with said phase detector;
- an oscillator connected in series with said loop filter;
- and
- a course control device adjusting an operating point during a starting phase of the phase-locked loop for making a damping and a natural frequency of the phase-locked loop independent of fluctuations in technology parameters.
2 more elements
Dependencies are inferred from the claim text.