频率合成器环路滤波器的设计，介绍由集成锁相芯片PE3236 和集成锁相芯片ADF4107 组成的单环锁相环常用的环路滤波器。-Frequency synthesizer loop filter design, introduced by the integrated phase-locked-chip phase-locked PE3236 and an integrated single-chip component Central ADF4107 PLL loop filter commonly used.