POWER-EFFICIENT MIXED-SIGNAL CIRCUIT INCLUDING ANALOG MULTIPLY AND ACCUMULATE ENGINES
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United States of America
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Issued Date -
Mar 6, 2025
app pub date -
Aug 29, 2023
filing date -
Aug 29, 2023
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Abstract
A first circuit is configured to split a first integer value into a first coarse value and a first fine value, and split a second integer value into a second coarse value and a second fine value. A second circuit performs an analog multiply and accumulate (MAC) operation on the first and second coarse values to produce a first analog output, perform an analog MAC operation on the first coarse value and the second fine value to produce a second analog output, perform an analog MAC operation on the first fine value and the second coarse value to produce a third analog output, and perform an analog MAC operation on the first and second fine values together to produce a fourth analog output. A third circuit is configured to perform analog-to-digital (A/D) conversion on and combine the analog output signals to produce a reconstructed digital output signal.
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