公开(公告)号：US20140191803A1

公开(公告)日：2014-07-10

申请号：US14141128

申请日：2013-12-26

Applicant: Huawei Technologies Co., Ltd.

Inventor： Zhi ZHANG ,  Xinrong HU ,  Jin RAO ,  Yongli WANG ,  Xiaosheng ZHU ,  Rong PENG

IPC: H03G3/30

CPC classification number: H03G1/0023 ,  H03G3/3036

Abstract: A continuous variable gain amplifier includes an attenuator network, a boost network, a first amplifying network, and a second amplifying network, where the attenuator network generates first differential output signals according to an input signal and sends the first differential output signals to the first amplifying network and the second amplifying network; the first amplifying network and the second amplifying network receive one output of the first differential output signals each, and generate a first final output signal and a second final output signal respectively according to an externally input control voltage; and the boost network receives the first final output signal and the second final output signal, generates second differential output signals, and sends a first output and a second output of the second differential output signals to the first amplifying network and the second amplifying network, respectively

Abstract translation: 连续可变增益放大器包括衰减器网络，升压网络，第一放大网络和第二放大网络，其中衰减器网络根据输入信号产生第一差分输出信号，并将第一差分输出信号发送到第一放大网络 网络和第二放大网络; 第一放大网络和第二放大网络分别接收第一差分输出信号的一个输出，并根据外部输入的控制电压产生第一最终输出信号和第二最终输出信号; 并且升压网络接收第一最终输出信号和第二最终输出信号，产生第二差分输出信号，并且将第二差分输出信号的第一输出和第二输出分别发送到第一放大网络和第二放大网络