DIGITAL POWER AMPLIFIER AND METHOD OF OPTIMISING A DIGITAL POWER AMPLIFIER

摘要

A digital power amplifier for a signal, the digital power amplifier comprising:;a first activatable amplifier;a second activatable amplifier; andan output network,wherein an output of the first amplifier and an output of the second amplifier are coupled to the output network, andwherein the amplifiers and/or the output network are configured such that four output levels are obtainable at an output of the output network, and said output levels are configured to optimise a linearity of the digital power amplifier for said signal.