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US 2015/0028928 A1Published application
Phase interpolators and push-pull buffers
AssigneeMicron Technology, Inc.
InventorGREGORY A. KING
Life of this patent
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Abstract
Interpolator systems are described utilizing one or more push-pull buffers to generate output clock signals that may be provided as inputs to a phase interpolator. The more linear slope on the output of the push-pull buffer may improve the linearity of a phase interpolator using the dock signals output from the push-pull buffers.
Claims20
An apparatus, comprising:
- a phase interpolator configured to receive first and second clock signals, a control signal, and a bias signal, the phase interpolator further configured to generate an output clock signal having a phase based on a phase of the first clock signal and a phase of the second clock signal, and further based on the control signal and the bias signal.
An apparatus, comprising:
- an interpolator configured to receive first and second clock signals and provide an output clock, signal, the interpolator comprising:
- a plurality of buffers configured to provide the output clock signal having a phase based on the first and second clock signals, a control signal, and a current;
- and
- a plurality of current sources configured to provide the current to the plurality of buffers based on a bias signal.
1 more element
A method, comprising:
- receiving first and second clock signals;
- receiving a bias voltage;
- receiving a control signal;
- and
- providing an output clock having, a phase based on a phase of the first and second clock signal, the bias voltage, and the control signal.
2 more elements
Dependencies are inferred from the claim text.