This paper describes using large scale integrated circuit—switch capacitatice filter (SCF) as basic components, taking out the characteristic of speech and making up microcomputer into control centre.
本文利用大规模集成电路一开关电容滤波器SCF作为语音特征提取的基本组件，以微机为控制中心，设计了时分复用动态语谱分析系统。
Based on characteristics of PIN diode switch circuit in rf signal switching, a PIN electronic switch circuit is designed to perform filter switching.
基于PIN二极管开关电路在射频信号切换方面的特性，设计了一种应用于滤波器切换的PIN电子开关电路。
The circuit design part mainly introduces the duplexer design with lumped apices filter, and the antenna switch design with PIN diode.
在电路结构设计部分，主要讨论了采用集总参数传输零点滤波器实现天线双工器和采用PIN管实现天线开关的设计方法。
The circuit design part mainly introduces the duplexer design with lumped apices filter, and the antenna switch design with PIN diode.
在电路结构设计部分，主要讨论了采用集总参数传输零点滤波器实现天线双工器和采用PIN管实现天线开关的设计方法。
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