公开(公告)号：EP3586442A1

公开(公告)日：2020-01-01

申请号：EP18713041.4

申请日：2018-01-16

申请人： Qualcomm Incorporated

发明人： MALLIA, Sreenivasa ,  MITTAL, Ayush ,  THIAGARAJAN, Krishnaswamy ,  ARUPPUKOTTAI BOOMINATHAN, Karthikeya

IPC分类号： H03K3/356

公开(公告)号：EP3080908A1

公开(公告)日：2016-10-19

申请号：EP14815166.5

申请日：2014-12-01

申请人： Qualcomm Incorporated

发明人： RAJENDRAN, Gireesh ,  KUMAR, Rakesh ,  PANIKKATH, Vinod Venugopal ,  MITTAL, Ayush ,  JOSHI, Alok

IPC分类号： H03H11/04

CPC分类号： H03H11/1213 ,  G05F1/445 ,  H02M11/00 ,  H03H11/045 ,  H03H2011/0483

摘要： An area efficient baseband filter is disclosed. In an exemplary embodiment, an apparatus includes a current to voltage (I-V) filter configured to receive an input current signal at an input port and generate a filtered output voltage signal at an output port based on a feedback transconductance. The input current signal comprises an input DC current in addition to a signal current. The apparatus also includes a feedback circuit connected between the output port and the input port, the feedback circuit having at least one transistor configured to couple the input DC current to a signal ground and to provide the feedback transconductance for the I-V filter.