公开(公告)号：US20190190554A1

公开(公告)日：2019-06-20

申请号：US15907544

申请日：2018-02-28

Applicant: NXP B.V.

Inventor： Radha SRINIVASAN ,  Ulrich Andreas MUEHLMANN ,  Frederic BENOIST ,  Stefan MENDEL ,  Steve CHARPENTIER

IPC: H04B1/12 ,  H04B5/00 ,  H04B17/318

Abstract: Embodiments are provided for a method of operating a receiver system, the receiver system comprising one or more channels, the method comprising: monitoring a residual DC (direct current) offset in a present channel by sampling an output of an analog-to-digital converter (ADC) of the present channel; adjusting a DCO (direct current offset) correction signal that corresponds to the residual DC offset in response to an absolute value of the residual DC offset exceeding a programmable DCO threshold; and subtracting the DCO correction signal from an analog signal provided to the ADC to reduce the residual DC offset below the programmable DCO threshold.