PHASE-LOCKED LOOP INCLUDES LOCK INDICATOR

被引:0
|
作者
CONNELLY, JA [1 ]
PRESCOTT, GE [1 ]
机构
[1] GEORGIA INST TECHNOL,ATLANTA,GA 30332
来源
ELECTRONICS | 1974年 / 47卷 / 18期
关键词
D O I
暂无
中图分类号
TN7 [基本电子电路];
学科分类号
080902 ;
摘要
A straightforward implementation for a phase-locked loop with lock indication is shown. A light emitting diode indicator lights when the loop is locked and goes off when the loop is unlocked. The loop's normal feedback path is opened to accommodate the lock-indicator circuitry. And the free-running frequency of the loop's controlled oscillator must be doubled because of a divide-by-2 network.
引用
收藏
页码:112 / 113
页数:2
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