Continuously variable dynamic element matching network
AssigneeSkyworks Solutions, Inc.
InventorsMark R. Peting, Miles Reuben Thompson
Life of this patent
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Abstract
This disclosure relates to a system for mitigating distortion in a signal, including a plurality of bit-cells, a calculation circuit configured to determine a bit-cell population that is available to be activated for a given clock cycle, a dynamic element matching network configured to activate a subset of bit-cells of the bit-cell population, and a controller configured to control a pattern of activation of the subset of bit-cells of the bit-cell population.
Claims20
A system for mitigating distortion in a signal comprising:
- a plurality of bit-cells;
- a calculation circuit configured to determine a bit-cell population that is available to be activated for a given clock cycle;
- a dynamic element matching network configured to activate a subset of bit-cells of the bit-cell population;
- and
- a controller configured to control a pattern of activation of the subset of bit-cells of the bit-cell population.
A method of activating bit-cells of a plurality of bit-cells to mitigate distortion in a signal comprising:
- determining a bit-cell population of the plurality of bit-cells to be available to be activated based on a signal strength of a signal;
- randomly selecting a first subset of bit-cells of the bit-cell population to activate based on the signal strength;
- activating the first subset of bit-cells on a first clock cycle;
- and
- deactivating the first subset of bit-cells on a second clock cycle.
A dynamic element matching network (DEM) comprising:
- an input;
- a bit-cell population calculator coupled to the input;
- a variable dynamic element matching network (variable DEM) coupled to the bit-cell population calculator and to a fixed-variable split calculator;
- and
- an output coupled to the variable DEM.
Dependencies are inferred from the claim text.