公开(公告)号：US20220407529A1

公开(公告)日：2022-12-22

申请号：US17763224

申请日：2019-12-26

Applicant: Intel Corporation

Inventor： Tzvi MAIMON ,  Ofir DEGANI ,  Assaf BEN-BASSAT ,  Anna NAZIMOV

IPC: H03M1/00 ,  H04B1/04

Abstract: A communication device includes a power amplifier that generates power signals according to one or more operating bands of communication data, with the amplitude being driven and generated in output stages of the power amplifier. A number of capacitive digital analog converter (CDAC) cells of a power amplifier can be sized to provide defined power signals along a signal path. In response to an optimization component that is coupled to a CDAC cell of the plurality of CDAC cells operating in a high efficiency enable mode and the CDAC cell being powered off in an off mode, the optimization component can increase a power efficiency of the power amplifier by reducing an impedance of an output capacitor of the CDAC cell.