数字鉴相器,数字锁相环频率合成系统FPGA的实现,很有借鉴价值-Digital phase detector, digital PLL frequency synthesizer system FPGA realization of referential value

常用锁相环芯片参数，功能，使用环境。频率合成发展的历史及前景-Common PLL chip parameters, function, use of the environment. To frequency synthesis history of the development and prospects