F1385 Datasheet | Renesas

DPD Demodulator for PA Linearization 3200 to 4400 MHz Description This document describes the specification for the F1385 Digital Pre-Distortion Demodulator for PA linearization. This series of devices is offered in two frequency variants to cover mon UTRA bands. petitive Advantage In typical Base Station transmitters digital pre-distortion is employed to improve the transmitter performance. The signal out of the PA is sampled and the ining TX chain I & Q data is predistorted to counteract the distortion inherent in the PA. The PA signal is adjusted via a digital step attenuator to a lower level and then sub-sampled at an IF frequency of ~350 MHz which...