公开(公告)号：US20240313732A1

公开(公告)日：2024-09-19

申请号：US18601676

申请日：2024-03-11

Applicant: Nordic Semiconductor ASA

Inventor： Marko PESSA ,  David ZAPATA

IPC: H03G3/30 ,  H03F3/21

CPC classification number: H03G3/3036 ,  H03F3/211 ,  H03F2200/451 ,  H03G2201/103 ,  H03G2201/307

Abstract: An amplifier circuit portion is proved. The amplifier circuit is arranged to amplify an input signal with a gain based on a gain control signal. The amplifier circuit portion comprises a plurality of amplifier cells having a common input for receiving the input signal and a common output for providing an amplified version of the input signal. At least one of the amplifier cells is operable in: a controllable gain mode in which the amplifier cell provides an amplification gain to the input signal based on the gain control signal; and a fixed gain mode in which the amplifier cell provides a fixed, non-zero amplification gain to the input signal.