公开(公告)号：US20240204753A1

公开(公告)日：2024-06-20

申请号：US18068837

申请日：2022-12-20

Applicant: QUALCOMM Incorporated

Inventor： Peter GAZZERRO ,  Nitz SAPUTRA ,  Ashok SWAMINATHAN ,  Osama ELHADIDY ,  Bo YANG

IPC: H03H11/04 ,  H03M1/06 ,  H03M1/66 ,  H04B1/04

CPC classification number: H03H11/0461 ,  H03M1/0626 ,  H03M1/66 ,  H04B1/04

Abstract: Methods and apparatus for filtering a signal using a current-mode filter circuit implementing source degeneration. An example filter circuit generally includes an input node; an output node; a power supply node; a first transistor comprising a drain coupled to the input node; a second transistor comprising a drain coupled to the output node and comprising a gate coupled to a gate of the first transistor; a capacitive element coupled between the drain of the first transistor and the power supply node; a first resistive element coupled between the drain and the gate of the first transistor; a first source degeneration element coupled between a source of the first transistor and the power supply node; and a second source degeneration element coupled between a source of the second transistor and the power supply node.