Analyzing the basic theory and development of PLL, and studying the design theory and impedance match problem of experimental circuit board.

分析了锁相环的基本原理和实现，并对射频电路设计理论和阻抗匹配问题进行了探究。

youdao

This program is based on the SEED-VPM642 experimental procedure development board, including many of the experimental source code.

此程序为基于SEED - VPM 642开发板的实验程序，包含了众多的实验源代码。

youdao

This program is based on the SEED-VPM642 experimental procedure development board, including many of the experimental source code.

此程序为基于SEED - VPM 642开发板的实验程序，包含了众多的实验源代码。

youdao