AD8369及其在数字中频接收机中的应用  

AD8369 and Its Application in Digital Intermediate Frequency Receivers

作　　者：曹鹏[1] 费元春[1] 

机构地区：[1]北京理工大学信息科学技术学院电子工程系,北京100081

出　　处：《电讯技术》2003年第6期23-26,共4页Telecommunication Engineering

基　　金：国防预研项目(×××××0302)

摘　　要：介绍了数字可变增益放大器(DVGA)AD8369的电路结构及其关键技术指标,并用该芯片为数字中频接收机设计了全数字自动增益控制(DAGC)系统,给出了其控制回路及其实现算法。该DAGC系统具有收敛速度快、工作稳定性好和抗饱和能力强等特点。This paper introduces the key specifications and its architecture of AD8369, and designs a full digital automatic gain control(DAGC) system for digital intermediate frequency receiver, and provides its control circuit and algorithm.The DAGC system has several merits, such as fast convergent rate, good operation stability and anti-saturation,etc.

关 键 词：AD8369 数字中频接收机 数字可变增益放大器 自动增益控制 

分 类 号：TN850.3[电子电信—信息与通信工程]