Apple inc. (20250080126). MIXER SECOND-ORDER INPUT-INTERCEPT POINT TEMPERATURE COMPENSATION
MIXER SECOND-ORDER INPUT-INTERCEPT POINT TEMPERATURE COMPENSATION
Organization Name
Inventor(s)
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.