MIXER SECOND-ORDER INPUT-INTERCEPT POINT TEMPERATURE COMPENSATION
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United States of America
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Mar 6, 2025
app pub date -
Sep 1, 2023
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Sep 1, 2023
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Abstract
The present disclosure relates to compensating for temperature variation of a mixer. Embodiments herein may include performing a single-point Fast Fourier Transform (FFT) (or complex downconversion with DC average) for a number of samples to obtain a transform for each of the number of samples, phase aligning a set of phases associated with each transform, and averaging each transform to generate an analog-to-digital converter (ADC) power value. Further, the disclosed embodiments may include generating a compensation value based on the analog-to-digital converter power value and applying the compensation value to the calibration circuit of the mixer to compensate for a second-order intermodulation product.
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