Oscillators – Automatic frequency stabilization using a phase or frequency... – Tuning compensation
Reexamination Certificate
2008-03-11
2008-03-11
Mis, David (Department: 2817)
Oscillators
Automatic frequency stabilization using a phase or frequency...
Tuning compensation
C331S010000, C331S017000, C331S066000, C331S158000, C331S175000, C331S179000
Reexamination Certificate
active
11278326
ABSTRACT:
A technique provides a clock source that meets accuracy requirements, allows the use of a low cost resonator, provides a wide range of output frequencies, and provides suitable phase noise performance. The technique generates a clock signal having a target output frequency using a controllable oscillator having at least one continuous frequency range of operation. The technique dynamically adjusts a reference control value based on a voltage for adjusting a frequency of the clock signal around a frequency determined by the reference control value. The reference control value is adjusted to be approximately within the center of an actual pull range corresponding to the controllable oscillator and a voltage control input of the controllable oscillator. The effective pull range of the controllable oscillator is continuous across the at least one continuous frequency range of operation.
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Batchelor Jeffrey S.
Thomsen Axel
Mis David
Silicon Laboratories Inc.
Zagorin O'Brien Graham LLP
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