公开(公告)号：US20190068214A1

公开(公告)日：2019-02-28

申请号：US15690728

申请日：2017-08-30

Applicant: Infineon Technologies AG

Inventor： Ketan Dewan ,  Reinhard Kussian ,  Juergen Schaefer

IPC: H03M3/00

Abstract: A modulator including a delta-sigma modulation circuit having an order greater than 1, and configured to modulate an input signal into a Pulse Density Modulated (PDM) signal; and a Pad Asymmetric Compensation (PAC) circuit configured to linearize a relation between a magnitude of the input signal and a number of rise or fall transitions of the PDM signal by maximizing the number of rise or fall transitions of the PDM signal, and to output a modified PDM signal, wherein the linearized relation is for compensating for any offset in the PDM signal.