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A Field Programmable Analog Array for Embedded Systems
Fabian Henrici
Graduiertenkolleg “Embedded Microsystems”, Universität Freiburg
Analog filters are generally more energy efficient than their digital equivalents. Overall power consumption can therefore be reduced by shifting a part or all signal processing tasks into the analog front-end. A field programmable analog array ideally suited for the task at hand is presented and evaluated. It uses Gm-C filters arranged in a hexagonal grid allowing for complex filter structures. The structure and the filter coefficients can be reprogrammed digitally via boundary scan.
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