OSCILLATORS HAVING ARBITRARY FREQUENCIES AND RELATED SYSTEMS AND METHODS
First Claim
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1. An oscillator configured to produce an oscillating signal of arbitrary frequency.
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Abstract
Systems and methods for operating with oscillators configured to produce an oscillating signal having an arbitrary frequency are described. The frequency of the oscillating signal may be shifted to remove its arbitrary nature by application of multiple tuning signals or values to the oscillator. Alternatively, the arbitrary frequency may be accommodated by adjusting operation one or more components of a circuit receiving the oscillating signal.
101 Citations
38 Claims
- 1. An oscillator configured to produce an oscillating signal of arbitrary frequency.
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12. A circuit, comprising:
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a reference clock comprising; a reference oscillator configured to produce a reference oscillator signal having an arbitrary frequency that is not a power of 2; and counter circuitry configured to receive the reference oscillator signal and count a number of oscillations of the reference oscillator signal, wherein the reference clock is configured to output a reference clock signal with a time base based on the number of oscillations of the reference oscillator signal counted by the counter circuitry; and a real time clock coupled to the reference clock and configured to receive the reference clock signal having the time base, and configured to produce an output indicative of current time. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25)
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26. A circuit comprising:
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a tunable reference oscillator configured to produce a tunable reference oscillating signal; and a real time clock configured to receive a reference clock signal derived from the tunable reference oscillating signal and produce an output indicative of current time. - View Dependent Claims (27, 28, 29, 30, 31, 32, 33, 34)
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35. A method of operating clock circuitry, comprising:
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generating a reference oscillating signal having an arbitrary frequency that is not a power of 2; counting a number of oscillations of the reference oscillating signal; producing a reference clock signal based on the number of oscillations of the reference oscillating signal counted; providing the reference clock signal to a real time clock; and generating an output of the real time clock indicative of current time. - View Dependent Claims (36, 37, 38)
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Specification