公开(公告)号：US20230387959A1

公开(公告)日：2023-11-30

申请号：US18322008

申请日：2023-05-23

Applicant: Evertz Microsystems Ltd.

Inventor： Jeff WEI ,  Eric Fankhauser ,  Xiaobing Sun

IPC: H04B1/403 ,  H04B1/00

CPC classification number: H04B1/406 ,  H04B1/0021 ,  H04B1/0017

Abstract: The present disclosure generally relates to multi-stage digital converters, including multi-stage digital down-converters (DDCs) and multi-stage digital up-converters (DUCs). In at least one example, the multi-stage digital down converter (DDC) comprises a plurality of stages, each stage comprising a frequency mixer and a decimation filter, and at least one controller coupled to one or more of the plurality of stages and operable to control one of the frequency mixer and decimation filter. In another example, the multi-stage digital up converter (DUC) comprises a plurality of stages, each stage comprising a frequency mixer and interpolation filter; at least one controller coupled to one or more of the plurality of stages and operable to control one of the frequency mixer and the interpolation filter.