US 12,712,555 B2 · Multi-phase signal generation scheme and method thereof

Abstract

The present disclosure relates to a signal generator including: a plurality of interpolators, each interpolator being configured to: receive a first input signal having a first phase, and a second input signal having a second phase; generate a plurality of interpolated signals based on a plurality of interpolations of the input signals, each interpolated signal having a respective phase based on the respective interpolation, and combine the interpolated signals to provide an output signal; the plurality of interpolators including: a first plurality of interpolators, each interpolator being configured to receive as input signals a first reference signal and a second reference signal; and a second plurality of interpolators, each interpolator being configured to receive as first input signal an output signal from an interpolator of the first plurality of interpolators and as second input signal another output signal from another interpolator of the first plurality of interpolators.

Claims19

Dependent claims

A signal generator comprising:

a plurality of layers, each layer of the plurality of layers comprising a plurality of interpolators,
wherein each interpolator of a first layer of the plurality of layers is adaptable to:
receive a first reference signal having a first phase, and a second reference signal having a second phase;
generate a plurality of interpolated signals based on a plurality of interpolations of the first reference signal with the second reference signal,
wherein each interpolated signal has a respective phase based on the respective interpolation of the first phase with the second phase;
and
combine the plurality of interpolated signals with one another to provide an output signal, and
wherein each interpolator of other layers of the plurality of layers is adaptable to receive respective output signals from two different interpolators of the preceding layer of the plurality of layers.

5 more elements

A system comprising:

a signal generator and an oscillator circuit coupled with the signal generator, wherein the signal generator comprises:
a plurality of layers
wherein each layer of the plurality of layers comprises a plurality of interpolators,
wherein each interpolator of a first layer of the plurality of layers is adaptable to:
receive a first reference signal having a first phase, and a second reference signal having a second phase;
generate a plurality of interpolated signals based on a plurality of interpolations of the first reference signal with the second reference signal, each interpolated signal having a respective phase based on the respective interpolation of the first phase with the second phase;
and
combine the plurality of interpolated signals with one another to provide an output signal,
wherein interpolators of other layers of the plurality of layers are adaptable to receive respective output signals,
wherein the signal generator is adaptable to deliver output signals of the last layer of the plurality of layers as a plurality of driving signals to the oscillator circuit, and
wherein the first reference signal and the second reference signal have a frequency that is a sub-harmonic of an oscillator frequency of the oscillator circuit.

8 more elements

Dependencies are inferred from the claim text.

Multi-phase signal generation scheme and method thereof

Life of this patent

Multi-phase signal generation scheme and method thereof

Life of this patent

Abstract

Claims19