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我们在研制住竞选址通讯时频制电台中,同步系统采用快插快放的参数字式锁相环。这种锁相环,捕捉迅速,实现简单,全集成化,在低频试验中,性能尚好。一、总体整个同步系统,主要由振荡源,相位调整、调整控制,地址编码:地地识别,同步废弃等六个部分组成,总体■总体电路图见图二。
We are in the development of competitive site communication frequency of radio stations, the synchronization system uses fast plug-in parameters of digital phase-locked loop. This phase-locked loop, capture quickly, to achieve simple, fully integrated, low-frequency test, the performance is still good. First, the overall synchronization system, mainly by the oscillation source, phase adjustment, adjustment and control, address coding: ground recognition, simultaneous discarding six components, the overall ■ overall circuit shown in Figure II.