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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...
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V149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。-Part of the launch phase-locked loop frequency synthesizer using technology, MC145152 and MC12022 PLL chips to lock in the exact carrier frequency 35MHz, the output carrier to achieve the stability of 4 × 10-5, reaching the accuracy of 3 × 10-5 by the varactor diode V149 and integration to achieve MC1648 chip VCO FM modulation on the carrier selection transistor amplifier at the end of class 2SC1970, to work in the C state to enlarge and improve the efficiency of the amplifier output power to meet the design requirements.
- 2022-08-18 16:37:11下载
- 积分:1
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C_NQueens Ask not what your country can do f or you Ask what you can do for your...
C_NQueens Ask not what your country can do for you Ask what you can do for your country. -C_NQueens Ask not what your country can do f or you Ask what you can do for your country.
- 2022-03-21 01:22:40下载
- 积分:1
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这是一个光盘镜像,是关于嵌入式操作系统的经典书籍<<嵌入式实时操作系统uc os2>>的附带光盘,是北航出版社出版...
这是一个光盘镜像,是关于嵌入式操作系统的经典书籍的附带光盘,是北航出版社出版-This is a disk image is embedded operating system on the classic books
- 2022-02-02 15:38:28下载
- 积分:1
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一款专业的电话交换机计费管理系统,可适用于任何行业。
一款专业的电话交换机计费管理系统,可适用于任何行业。-A professional telephone exchange billing management system, applicable to any industry.
- 2022-02-12 05:41:00下载
- 积分:1
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This program is written in C node 100 Power Flow Calculation Program
本程序是用C语言编写的100个节点的电力系统潮流计算程序-This program is written in C node 100 Power Flow Calculation Program
- 2022-02-25 11:54:00下载
- 积分:1
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wealsh network with guns is meant to facilitate the testing speed, all from the...
wealsh 网络测速器
只是为了方便测试网速,所有测试点来自 世界网络.-wealsh network with guns is meant to facilitate the testing speed, all from the test network.
- 2022-07-21 17:00:56下载
- 积分:1
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研究数据结构,使课程设计。实现一些文件,第1个…
学习数据结构做的课程设计.有多个文件实现,这个项目也是比较多人选的,相信上传会有帮助的-study data structure so the curriculum design. Achieve a number of documents, the project is more of the candidates, Upload believe can be helpful
- 2023-04-02 22:10:04下载
- 积分:1
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Jbuilder development of a peer
Jbuilder开发的一个P2P文件共享软件!-Jbuilder development of a peer-to-peer file-sharing software!
- 2022-02-03 07:24:39下载
- 积分:1
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PLSQL PLSQL PLSQL PLSQL PLSQL PLSQL PLSQL PLSQL
plsql plsql plsql plsql plsql plsql plsql plsql -plsql plsql plsql plsql plsql plsql plsql plsql plsql plsql plsql plsql plsql plsql plsql plsql plsql plsql
- 2022-02-04 16:28:23下载
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第六章实验二(1)本程序为魔方阵.C
可用来求出所指定大小的魔方...
第六章实验二(1)本程序为魔方阵.C
可用来求出所指定大小的魔方-sixth chapter two experiments (1) the procedure for the Demon phalanx. C can be used to specified sizes calculated by the Cube
- 2023-02-18 06:05:04下载
- 积分:1