Patent ID: 8995569
Filing Date: 2015-03-31
Classification: H04L

Abstract:
1. A wireless radio-frequency (RF) transmitter comprising: a digital-to-intermediate frequency (IF) circuit block configured to receive a digital in-phase baseband signal and a digital quadrature baseband signal and to up-convert the digital in-phase and quadrature baseband signals to a digital in-phase IF signal and a digital quadrature IF signal; a digital-to-analog (DAC) converter block configured to convert the digital in-phase IF signal and the digital quadrature IF signal to an in-phase analog IF signal and a quadrature analog IF signal respectively; and an IF-to-RF up-converter block configured to up-convert the analog in-phase IF signal and the analog quadrature IF signal to an RF output, wherein the digital-to-IF circuit block comprises: