Clock and data recovery circuit using an injection locked oscillator
First Claim
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1. A clock and data recovery circuit, comprising:
- an injection locked oscillator configured to generate a recovered clock signal, the injection locked oscillator comprising;
a two stage ring oscillator; and
an injection switch coupled to the two stage ring oscillator;
a pulse generator coupled to the injection locked oscillator and configured to generate a pulse signal according to input data for controlling the injection locked oscillator; and
a sampler coupled to the input data and the injection locked oscillator and configured to sample the input data according to the recovered clock signal.
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Abstract
A clock and data recovery circuit includes a sampler, a skew compensation block, a pulse generator, and an injection locked oscillator. The injection locked oscillator generates a recovered clock signal, the pulse generator generates a pulse signal according to input data for controlling the injection locked oscillator, the skew compensation block compensates the input data and generate compensated data, and the sampler samples the compensated data according to the recovered clock signal.
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14 Claims
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1. A clock and data recovery circuit, comprising:
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an injection locked oscillator configured to generate a recovered clock signal, the injection locked oscillator comprising; a two stage ring oscillator; and an injection switch coupled to the two stage ring oscillator; a pulse generator coupled to the injection locked oscillator and configured to generate a pulse signal according to input data for controlling the injection locked oscillator; and a sampler coupled to the input data and the injection locked oscillator and configured to sample the input data according to the recovered clock signal. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A method of operation of a clock and data recovery, comprising:
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an injection locked oscillator generating a recovered clock signal; a pulse generator generating a pulse signal according to input data for controlling the injection locked oscillator; and a sampler sampling the input data according to the recovered clock signal. - View Dependent Claims (10, 11, 12, 13, 14)
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Specification