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本文介绍采用可编程定时／计数器８２５３作为分频器与锁相环４０４６组成一个程控式锁相倍频器，可用于数字合成波测试电源的组成环节。文章给出了线路及参数的设计、计算。
This article describes the use of programmable timer / counter 8253 as a divider and phase-locked loop 4046 to form a programmable phase-locked multiplier, can be used for digital synthesis wave test power components. The paper gives the design and calculation of circuit and parameters.