TUNED RESONANT CLOCK DISTRIBUTION SYSTEM
First Claim
1. A tunable clock distribution system comprising:
- a clock network comprising an inductive circuit and a capacitive circuit, at least one of the capacitive circuit or the inductive circuit being tunable;
a driving circuit configured to receive a clock signal and to distribute a resonant clock signal based on the clock signal to the clock network; and
a phase determiner configured to receive the clock signal and the resonant clock signal and to determine whether the clock signal and the resonant clock signal have a predetermined phase difference, and when the clock signal and the resonant clock signal do not have the predetermined phase difference, the phase determiner is configured to tune at least one of the capacitive circuit or the inductive circuit.
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Accused Products
Abstract
A tunable clock distribution system that includes a clock network including an inductive circuit and a capacitive circuit where at least one of the capacitive circuit or the inductive circuit is tunable. The tunable clock distribution system may further include a driving circuit and a phase determiner. The driving circuit may be configured to receive a clock signal and to distribute a resonant clock signal based on the clock signal to the clock network. The phase determiner may be configured to receive the clock signal and the resonant clock signal and to determine whether the clock signal and the resonant clock signal have a predetermined phase difference. When the clock signal and the resonant clock signal do not have the predetermined phase difference, the phase determiner may be configured to tune at least one of the capacitive circuit or the inductive circuit.
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Citations
20 Claims
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1. A tunable clock distribution system comprising:
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a clock network comprising an inductive circuit and a capacitive circuit, at least one of the capacitive circuit or the inductive circuit being tunable; a driving circuit configured to receive a clock signal and to distribute a resonant clock signal based on the clock signal to the clock network; and a phase determiner configured to receive the clock signal and the resonant clock signal and to determine whether the clock signal and the resonant clock signal have a predetermined phase difference, and when the clock signal and the resonant clock signal do not have the predetermined phase difference, the phase determiner is configured to tune at least one of the capacitive circuit or the inductive circuit. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. An integrated circuit comprising:
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a clock generator configured to generate a clock signal; a driving circuit configured to distribute the clock signal; a clock network comprising an inductive circuit and a capacitive circuit connected to the driving circuit, at least one of the capacitive circuit or the inductive circuit being tunable; and a phase determiner configured to receive the clock signal from the clock generator and a resonant clock signal from the clock network, the phase determiner configured to determine whether the clock signal and the resonant clock signal have a predetermined phase difference, and when the clock signal and the resonant clock signal do not have the predetermined phase difference, the phase determiner is configured to tune at least one of the capacitive circuit or the inductive circuit. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16)
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17. A method for tuning a resonant clock distribution network, the method comprising:
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receiving a clock signal; distributing the clock signal to a clock network that includes an inductive circuit and a capacitive circuit, at least one of the capacitive circuit or the inductive circuit being tunable; comparing a phase of the clock signal to a phase of a resonant clock signal of the clock network; determining whether a predetermined phase shift exists between the clock signal and the resonant clock signal; and tuning at least one of the capacitive circuit or the inductive circuit when it is determined that the predetermined phase shift does not exist between the clock signal and the resonant clock signal. - View Dependent Claims (18, 19, 20)
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Specification