INTEGRATED CIRCUIT HAVING A CLOCK DESKEW CIRCUIT THAT INCLUDES AN INJECTION-LOCKED OSCILLATOR
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Abstract
Methods and apparatuses featuring an injection-locked oscillator (ILO) are described. In some embodiments, an ILO can have multiple injection points and a free-running frequency that is capable of being adjusted based on a control signal. In some embodiments, each injection point of an ILO can correspond to a phase tuning range. In some embodiments, a circuit can include circuitry to detect a phase boundary between two adjacent phase tuning ranges. In some embodiments, a circuit can use the detected phase boundary to switch between the two adjacent phase tuning ranges.
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Citations
40 Claims
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1. -20. (canceled)
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21. A circuit, comprising:
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a first injection-locked oscillator (ILO) to generate a first output signal based on an input signal, wherein the first ILO has a first free-running frequency that is capable of being adjusted based on a first control signal; a second ILO to generate a second output signal based on the input signal, wherein the second ILO has a second free-running frequency that is capable of being adjusted based on a second control signal; and circuitry to generate the first control signal and the second control signal. - View Dependent Claims (22, 23, 24, 25, 26, 27)
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28. A memory system, comprising:
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a memory device; and a memory controller that orchestrates data flow to and from the memory device, the memory controller comprising; a first injection-locked oscillator (ILO) to generate a first output signal based on an input signal, wherein the first ILO has a first free-running frequency that is capable of being adjusted based on a first control signal; a second ILO to generate a second output signal based on the input signal, wherein the second ILO has a second free-running frequency that is capable of being adjusted based on a second control signal; and circuitry to generate the first control signal and the second control signal. - View Dependent Claims (29, 30, 31, 32, 33, 34)
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35. A method, comprising:
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generating, by using a first injection-locked oscillator (ILO), a first output signal based on an input signal, wherein the first ILO has a first free-running frequency that is capable of being adjusted based on a first control signal; generating, by using a second ILO, a second output signal based on the input signal, wherein the second ILO has a second free-running frequency that is capable of being adjusted based on a second control signal; and generating the first control signal and the second control signal. - View Dependent Claims (36, 37, 38, 39, 40)
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Specification