基于CXA3556N的芯片简介及应用电路设计

字数:3113,页数:18

摘要
简要介绍CXA3556N的功能、内部结构、引脚排列及典型的应用电路。CXA3556N是一个单芯片集成电路,它由自动增益控制电路,混频电路,本地振荡电路和输出放大电路组成,能处理数字广播调谐器产生的中频信号,它的表面管脚采用可实用的24-pin SSOP的封装形式.
关键字:自动增益控制   混频  
        本地振荡   输出放大
 
Abstract

It briefly introduced the CXA3556N function, internal structure, pin array and typical apply circuit. The CXA3556N is one-chip integrated IC that processes IF signals of a digital broacast tuner and includes an AGC amplifier circuit ,a mixer circuit,local oscilator circuit and an output amplifier circuit.The package utilizes a 24-pin SSOP suitable for surface mounting.

Key word:  AGC amplitier   mixer
             local oscilator  output amplifier

目 录
1.CXA3556N芯片简介.....................................................................4
2.CXA3556N封装外观.....................................................................5
3.CXA3556的方框图和引脚布局............................................................6
4. CXA3556N的引脚描述和等效电路........................................................7
5 电气特性.............................................................................9
5.1 下变频器模式.......................................................................9
5.2 线性放大模式......................................................................10
5.3输出放大特性.......................................................................12
6 测量电路1_下变频模式................................................................12
7测量电路2_线性模式...................................................................13
8测量电路3_输出放大F性能..............................................................14
9应用电路(下变频模式..................................................................15
10功能描述............................................................................15
11下变频模式电性能....................................................................16
12总结................................................................................17
参考文献..............................................................................18