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US 12,206,361 B2Granted
Oscillator frequency accuracy and amplitude control
AssigneeTexas Instruments Incorporated
InventorsHagen Graf, Danielle Griffith
Life of this patent
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Abstract
In examples, an electronic device comprises an oscillator circuit configured to provide an output signal and a controller coupled to the oscillator circuit. The controller is configured to receive first and second target rates; dynamically adjust a frequency accuracy of the output signal based on the first target rate; and dynamically adjust an amplitude of the output signal based on the second target rate.
Claims21
An electronic device, comprising:
- an oscillator circuit configured to provide an output signal;
- and
- a controller coupled to the oscillator circuit and configured to:
- receive first and second target rates;
- dynamically adjust a frequency accuracy of the output signal based on the first target rate;
- dynamically adjust an amplitude of the output signal based on the second target rate;
- and
- interleave adjustments to the frequency accuracy and the amplitude to maintain energy in a crystal of the oscillator circuit within a target range.
5 more elements
An electronic device, comprising:
- an oscillator circuit including a first adjustable component configured to control a frequency accuracy of an output signal of the oscillator circuit and a second adjustable component configured to control an amplitude of the output signal;
- and
- a controller coupled to the oscillator circuit and configured to:
- adjust a first value of the first adjustable component to a first target value at a first rate that does not exceed a first threshold rate, wherein the first target value and first threshold rate are dynamically adjustable inputs to the controller;
- and
- adjust a second value of the second adjustable component to a second target value at a second rate that does not exceed a second threshold rate, wherein the second target value and the second threshold rate are dynamically adjustable inputs to the controller.
3 more elements
A method, comprising:
- receiving a first target value and a first threshold rate for a frequency accuracy of an oscillator output signal;
- receiving a second target value and a second threshold rate for an amplitude of the oscillator output signal;
- adjusting a first value of the frequency accuracy of the oscillator output signal toward the first target value at a rate less than or equal to the first threshold rate;
- and
- adjusting a second value of the amplitude of the oscillator output signal toward the second target value at a rate less than or equal to the second threshold rate.
2 more elements
Dependencies are inferred from the claim text.