3-레벨 EDSM 송신 구조에서 DSM 회로의 입력 신호 처리 방법

In a 3-level envelope delta-sigma modulation (EDSM) transmitter, a delta-sigma modulator (DSM) block is employed for the process of an envelope signal. For a good performance in a circuit level implementation, a differential signal is used for the input of a DSM circuit. In this work, a proper driving method of the DSM circuit is proposed, and verified through a simulation.