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US 10,476,660 B1Granted
Quadrature signal generation
AssigneeMicron Technology, Inc.
InventorsLiuchun Cai, Steven G. Wurzer, Gregory A. King
Life of this patent
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Abstract
Apparatuses and methods for quadrature signal generation are provided. An example includes a quadrature signal generator. The quadrature signal generator is configured to generate, based on a received differential signal, a plurality of quadrature clock signals at a same frequency as that of the received differential signal. The quadrature signal generator is also configured to provide the plurality of quadrature clock signals to a memory system.
Claims19
An apparatus, comprising:
- a quadrature signal generator configured to:
- generate, based on a received differential signal, a plurality of quadrature clock signals at a same frequency as that of the received differential signal;
- and
- provide the plurality of quadrature clock signals to a memory system;
- wherein:
- the filter bank is one of a plurality of components included in the quadrature signal generator;
- at least one of the plurality of components comprises a capacitor bank whose constituent capacitors are controllable by respective control bits.
4 more elements
A quadrature signal generator, comprising:
- an input channel configured to receive a differential signal having a non-sinusoidal waveform from a clock generator, wherein the quadrature signal generator is configured to convert the received differential signal to a sinusoidal waveform;
- and
- a polyphase filter configured to:
- receive the differential signal having the converted sinusoidal waveform;
- and
- generate a plurality of quadrature signals having the sinusoidal waveform.
3 more elements
A method, comprising:
- generating, at a polyphase filter of a quadrature signal generator, a plurality of quadrature signals having a sinusoidal waveform at a same frequency as that of a differential signal received from a clock generator;
- converting, to a non-sinusoidal waveform, the plurality of quadrature signals generated at the polyphase filter;
- and
- generating, based on the plurality of quadrature signals having the converted non-sinusoidal waveform, a plurality of quadrature clock signals having the non-sinusoidal waveform.
1 more element
Dependencies are inferred from the claim text.