Intel Corporation

Mingwei Huang

Keng L Wong

David E Duarte

Chi-Yeu Chao

Cangsang Zhao

Raymond (Hon-Mo) Law

Shuching Hsu

Described is an apparatus comprising: a multi-modulus divider; and a phase provider to receive a multiphase periodic signal and operable to rotate phases of the multiphase periodic signal to generate an output which is received by the multi-modulus divider.

Multi-phase fractional divider

A voltage-controlled oscillator (VCO) of ring-connected stages, where each stage in the VCO has a first set of differential inverters biased by variable bias voltages, and a second set of differential inverters biased by fixed bias voltages. The differential inverters in each stage are connected in parallel with each other. Each set of differential inverters in a stage may contain only one differential inverter. The variable bias voltages are provided by charge pumps and associated circuits as used in well-known self-biasing schemes for phase locked loops. The fixed bias voltages are provided by a biasing circuit, matched to the circuits associated with the charge pumps, but where a fixed control voltage is applied to provide the fixed bias voltages.

Split-biased interpolated voltage-controlled oscillator and phase locked loop

According to embodiments of the present invention, a phase-locked loop (PLL) may include circuitry to select a wide pulse width for the phase-frequency detector control signal when the PLL is in a frequency acquisition stage, a narrow pulse width for the phase-frequency detector control signal when the PLL is in a phase capture stage, and a wide pulse width of the phase-frequency detector control signal when the PLL is in a lock stage.

Phase-locked loop having dynamically adjustable up/down pulse widths

A system is provided that includes a power distribution network to provide a switching current and a resonance reduction circuit to sense the switching current within a frequency range and to generate a resonance reduction signal having a current component at substantially a same frequency and substantially 180 degrees out of phase from the sensed switching current. The power distribution network may combine the switching current with the resonance reduction signal to provide a total switching current that may be provided to a processor as the powering signal.

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Portland, OR, United States of America

Mingwei Huang