Phase locked loop

Details Phase locked loop Phase locked loop

2006-09-12

2006-09-12

Kinkead, Arnold (Department: 2817)

Oscillators

Automatic frequency stabilization using a phase or frequency...

Tuning compensation

C331S00100A, C331S175000, C331S17700V

Reexamination Certificate

active

07106141

ABSTRACT:
The phase locked loop according to the invention has an adjustable charge pump (2) which is intended to generate a control voltage (UVCO). A voltage-controlled oscillator (4) and an evaluation unit (14) are connected downstream of said charge pump. In this case, the evaluation unit (14) is designed in such a manner that it can be used to generate a correction signal (Iref) using the control voltage (UVCO) and a nominal gradient ({circumflex over (K)} vco) of the voltage-controlled oscillator (4) and to apply said signal to the evaluation output. The latter is, in turn, connected to an input of the charge pump (2).

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patent: 1 244 215 (2002-09-01), None

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