UC知道汉文翻译英语
来源：百度知道 编辑：UC知道 时间：2024/06/14 00:16:10
发射部分采用锁相环式频率合成器技术， MC145152和MC12022芯片组成锁相环，将载波频率精确锁定在35MHz，输出载波的稳定度达到4×10-5，准确度达到3×10-5，由变容二极管BB910和集成压控振荡器芯片MC1648实现对载波的调频调制；末级功放选用三极管2SC1970，使其工作在丙类放大状态，提高了放大器的效率，输出功率达到设计要求。
接收部分以超大规模AM/FM立体声收音集成芯片CXA1238S为主体，灵敏度、镜像抑制、信噪比等各项性能指标均达到设计要求；音频功率放大器采用集成芯片LM386，电压放大倍数最大为200。采用PT2262/2272编码/解码电路实现了数据传输业务以及对台号的选择等功能；音频输入和数据输入可自动转换；AT89S52作为整个系统的控制部分，程序设计采用C语言在KEIL51的编译器上编程实现；显示采用16×02点阵型液晶显示。经测试，整机功能齐全，各项性能指标符合系统要求，接收波形稳定，无明显失真。
有翻译牛人能帮忙翻译成英语吗
既然都是自动翻译，那你们谁给出好的自动翻译的网站，我给谁最佳吧
The simplex wireless ringing system divides launches and receives two major parts. According to the duty and the request, its operating frequency falls in the 30~40MHz frequency band, we choose use 35MHz to take the master station transmitting frequency. the launch part uses the phase-lock concentric type frequency synthesizer technology, MC145152 and the MC12022 chip composition phase-locked loop, locks precisely the carrier frequency in 35MHz, the outgoing carrier stability achieves 4×10-5, the accuracy achieves 3×10-5, controls oscillator chip MC1648 by varactor BB910 and the integrated pressure to realize to the carrier frequency modulation modulation; The last stage power amplifier selects triode 2SC1970, causes its work in the third kind of enlargement condition, raised amplifier's efficiency, the output has achieved the design requirements. the receiving unit take ultra large-scale AM/FM stereo sound reception integration chip CXA1238S as the main body, the sensitivity, t