Frequency generator with a phase locked loop

Details Frequency generator with a phase locked loop Frequency generator with a phase locked loop

2007-05-15

2007-05-15

Mis, David (Department: 2817)

Oscillators

Automatic frequency stabilization using a phase or frequency...

Particular error voltage control

C331S008000, C331S016000

Reexamination Certificate

active

11234324

ABSTRACT:
A frequency generator with a phase locked loop includes a loop filter, the transfer function of which has a pair of complex conjugated poles. The present invention provides an optimum and greatly improved compromise, in particular as opposed to the prior art, between phase noise and settling time of the phase locked loop of the frequency generator.

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patent: 102 55 863 (2004-06-01), None
Bram De Muer, and Michael S. J. Steyaert; “A CMOS Monolithic Controlled Fractional—N Frequency Synthesizer for DCS-1800”; IEEE Journal of Solid-State Circuits, vol. 37, No. 7, Jul. 2002.
Maxim/Dallas Direct; “Microprocessor Programmable Universal Active Filters”; 19 0352, Rev 2, Jul. 2002.
PCT/ISA/210; PCT/EP2004/003261; Mar. 26, 2004.
International Preliminary Report on Patentability and translation of PCT Written Opinion of the Int'l Searching Authority; PCT/EP2004/003261; Mar. 26, 2004.

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