公开(公告)号：US20250007481A1

公开(公告)日：2025-01-02

申请号：US18709090

申请日：2022-03-21

Applicant: SANECHIPS TECHNOLOGY CO., LTD.

Inventor： Siyu LIN

IPC: H03G3/30 ,  H03G1/00 ,  H04B1/04

Abstract: Provided in the present disclosure is a variable gain amplifier, including: a voltage signal input end; a high level generation module including two high level signal output ends, and configured to convert a voltage signal input from the voltage signal input end into a first high level signal and a second high level signal; a switch signal conversion module including a high level signal input end, N digital signal input ends and N switch signal output ends, and configured to output, through corresponding switch signal output ends and under the control of signals input from the digital signal input ends, gain control signals associated with a signal output from the first high level signal output end; and an amplification module including an amplification unit and N stages of gain control units, where N is a positive integer not less than 1. Further provided is a transmitting apparatus.