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Apple inc. (20250080126). MIXER SECOND-ORDER INPUT-INTERCEPT POINT TEMPERATURE COMPENSATION

From WikiPatents

MIXER SECOND-ORDER INPUT-INTERCEPT POINT TEMPERATURE COMPENSATION

Organization Name

apple inc.

Inventor(s)

Long Kong of Campbell CA (US)

Shinan Lu of Foster City CA (US)

Utku Seckin of San Jose CA (US)

MIXER SECOND-ORDER INPUT-INTERCEPT POINT TEMPERATURE COMPENSATION

This abstract first appeared for US patent application 20250080126 titled 'MIXER SECOND-ORDER INPUT-INTERCEPT POINT TEMPERATURE COMPENSATION

Original Abstract Submitted

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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