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<font color=#008040>不断地捕捉→比较→锁定<br />失锁后再度进入锁定,需要一个捕捉过程,若范围不够大的话,就锁不了相.<br />你可适当调整一下压控振荡器及低通滤波器参数,使之能自动进入锁定<br /></font><br /><br /><font color=#FF0000>锁相环电路设计和调试心得.pdf → </font> <a href="https://bbs.21ic.com/upfiles/img/20095/200957154819489.pdf" target=_blank>https://bbs.21ic.com/upfiles/img/20095/200957154819489.pdf</a><br /> <br /><img src="https://bbs.21ic.com/upfiles/img/20095/20095716016325.gif"><br /><br /><img src="https://bbs.21ic.com/upfiles/img/20095/20095716052826.gif"><br /><br /><br /><font color=#FF0000>如何调试锁相环频率合成器.pdf → </font><a href="https://bbs.21ic.com/upfiles/img/20095/200957155635181.pdf" target=_blank>https://bbs.21ic.com/upfiles/img/20095/200957155635181.pdf</a><br /> <br /><img src="https://bbs.21ic.com/upfiles/img/20095/20095716128980.gif"><br /><br /><img src="https://bbs.21ic.com/upfiles/img/20095/20095716157160.gif"><br /><br /><font color=#FF0000></font><br /><font color=#FF0000>锁相环捕捉过程的定性分析.ppt → </font><a href="https://bbs.21ic.com/upfiles/img/20095/200957153954364.rar" target=_blank>https://bbs.21ic.com/upfiles/img/20095/200957153954364.rar</a><br /><br /><img src="https://bbs.21ic.com/upfiles/img/20095/200957153439286.gif">
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