APPARATUS AND METHOD TO PROVIDE BACKGROUND REAL-TIME SECONDARY INPUT INTERCEPT POINT CORRECTION

摘要

Provided are an apparatus and a method to correct a background real-time IIP2 correction. The method filters the output of an in-phase mixer (I-mixer), filters the output of a quadrature-phase mixer (Q-mixer), converts the output of a first LPF, converts the output of a second LPF, buffers the output of a first ADC, buffers the output of a second ADC, buffers a transmitter signal, generates a reference signal from the output of a TX data capture buffer, removes a direct current from the reference signal, and adaptively controls the output of a first RX data capture buffer, the output of a second RX data capture buffer, the output from a direct current removal unit, and a Q-mixer digital-to-analog (DAC) code and an I-mixer DAC code from a predetermined step size about each of the Q-mixer DAC code and the I-mixer DAC code.;COPYRIGHT KIPO 2017