公开(公告)号：US20210075470A1

公开(公告)日：2021-03-11

申请号：US16988852

申请日：2020-08-10

Applicant: NXP B.V.

Inventor： Fred George NUNZIATA ,  Martin Buchsbaum ,  Erich Merlin ,  Adrian Rafael Krenn

IPC: H04B5/00

Abstract: In accordance with a first aspect of the present disclosure, a near field communication (NFC) device is provided, comprising: a modulator configured to modulate a carrier signal received from an external reader, resulting in a modulated carrier signal; a controller configured to control a transmission of the modulated carrier signal to the external reader; a transmitter driver configured to transmit said modulated carrier signal, said transmitter driver having a variable resistance; wherein the controller is further configured to change said variable resistance during a modulation phase of the NFC device such that a clock synchronization window is widened. In accordance with a second aspect of the present disclosure, a corresponding method of operating an NFC device is conceived. In accordance with a third aspect of the present disclosure, a non-transitory machine-readable medium is provided, comprising instructions which, when executed, carry out a method of the kind set forth.