The paper proposes that combined common-drain common-source configuration can be used in audio amplifier. 本文提出把共漏共源结构应用于音频功率放大器电路的设计思想。
The LNA circuit is mainly composed of two-stage common-source amplifier and an output buffer. It has realized the input matching by using the LC filter network and obtained lower power consumption and higher gain in the entire frequency band by employing the current reuse technology. 该低噪声放大器电路主要由两级共源放大器和输出缓冲器构成,采用LC滤波网络实现输入匹配,结合电流复用技术,在整个频带内获得了较低的功耗和较高的增益。