请问相锁环pll怎样使用在模拟扫描振荡器中?

tsun

<img src="attachments/dvbbs/2012-5/201251913501267625.jpg" border="0" onclick="zoom(this)" onload="if(this.width>document.body.clientWidth*0.5) {this.resized=true;this.width=document.body.clientWidth*0.5;this.style.cursor='pointer';} else {this.onclick=null}" alt="" />
<img src="attachments/dvbbs/2012-5/201251913502570020.jpg" border="0" onclick="zoom(this)" onload="if(this.width>document.body.clientWidth*0.5) {this.resized=true;this.width=document.body.clientWidth*0.5;this.style.cursor='pointer';} else {this.onclick=null}" alt="" />
想了很久相锁环是会稳频,应该怎样连接?[em13]想用相锁环调校中心频率