Phase-locked loops

A phase-locked loop (PLL) (101a) is disclosed. One embodiment, among others, includes a PLL that provides a control current (233) and varies the control current in proportion to an inverse of N squared. N is the ratio of the output frequency (216) of the PLL to the reference frequency (238) of the P...

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Main Authors HATCHER, GEOFF, ZACHAN, JEFFREY M, YOUSSOUFIAN, EDWARD
Format Patent
LanguageEnglish
Published 01.08.2007
Subjects
AUTOMATIC CONTROL, STARTING, SYNCHRONISATION, OR STABILISATIONOF GENERATORS OF ELECTRONIC OSCILLATIONS OR PULSES
BASIC ELECTRONIC CIRCUITRY
ELECTRICITY
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Abstract A phase-locked loop (PLL) (101a) is disclosed. One embodiment, among others, includes a PLL that provides a control current (233) and varies the control current in proportion to an inverse of N squared. N is the ratio of the output frequency (216) of the PLL to the reference frequency (238) of the PLL. The varying of the control current compensates for bandwidth changes of the PLL.
AbstractList A phase-locked loop (PLL) (101a) is disclosed. One embodiment, among others, includes a PLL that provides a control current (233) and varies the control current in proportion to an inverse of N squared. N is the ratio of the output frequency (216) of the PLL to the reference frequency (238) of the PLL. The varying of the control current compensates for bandwidth changes of the PLL.
Author YOUSSOUFIAN, EDWARD
HATCHER, GEOFF
ZACHAN, JEFFREY M
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Snippet A phase-locked loop (PLL) (101a) is disclosed. One embodiment, among others, includes a PLL that provides a control current (233) and varies the control...
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SubjectTerms AUTOMATIC CONTROL, STARTING, SYNCHRONISATION, OR STABILISATIONOF GENERATORS OF ELECTRONIC OSCILLATIONS OR PULSES
BASIC ELECTRONIC CIRCUITRY
ELECTRICITY
Title Phase-locked loops
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