公开(公告)号：US20240313728A1

公开(公告)日：2024-09-19

申请号：US18601651

申请日：2024-03-11

Applicant: Nordic Semiconductor ASA

Inventor： Marko PESSA ,  Tuomas LEINONEN

IPC: H03G3/00 ,  H03F3/24 ,  H03G1/04

CPC classification number: H03G3/001 ,  H03F3/245 ,  H03F2200/465 ,  H03G1/04

Abstract: An amplifier apparatus is arranged to amplify an input signal with a gain based on a digital gain control signal. The amplifier apparatus comprises a digital-to-analogue converter arranged to convert the digital gain control signal into an analogue gain control signal according to a first non-linear relationship between digital gain control signal and analogue gain control signal; and an amplifier circuit portion arranged to amplify the input signal with a gain based on the analogue gain control signal according to a second non-linear relationship between analogue gain control signal and gain. The first non-linear relationship is based on the second non-linear relationship.