1、 高 频高 频 课 程 设 计课 程 设 计 设 计 说 明 书 设计项目： 调幅广播收音机的组装与调试 调幅广播收音机的组装与调试 摘 要 电子设计自动化技术已渗透到电子系统和专用集成电路设计的各个环节， 个中软件应 用到电子设计，使电路的设计，调整和改进更加高效便捷。简单分析了超外差式调幅收音 机电路的工作原理及其组装和调试。现在的 S66E 将原来的插座改为立体声耳机插座，电 路原理图未变，步线有所调整。更改后的收音机灵敏度更高、声音更洪亮、用途更广泛， 适合 MP3、单放机等机型所使用的耳机。散件为 3V 低压金硅管六管超外差式收音机，具 有安装调试方便、工作稳定、生硬洪亮、耗电省等优
2、点。它由输入回路高放混频级、一级 中放、二级中放、前置低放兼检波级、低放级和公放级等部分组成，接受频率范围为 535KHZ1605KHZ 的中波段。 关键词：关键词：高放混频级低放兼检波级 低压金硅管 An am radio broadcast of the assembly and test Abstract Electronic design automation technology has infiltrated into electronic systems and a pplication-specific integrated circuit design in all aspe
3、cts, in a software application to th e electronic design and simulation, circuit design, adjust and improve more efficient con venient. A simple analysis of the superheterodyne AM radio circuit and the principle of assembly and debugging. Now the S66E the original stereo headphone socket to socket,
4、circuit schematics unchanged, infantry line adjustments. After the change of radio sensiti vity higher, sound more resonant, more extensive use for MP3, player models, such asb y using headphones. Parts of 3 V low-voltage of the silicon six superheterodyne radio,w ith the installation debugging convenience, the stability, rigidity, whose advantages in po wer consumption. It is the importation of high-level radioactive mixer circuit level, ina release, the two-in, pre-release of the det
