比较了同步分频器和异步分频器，表明了异步分频器在高频应用中的特点。

The characteristics of circuits concerning speed and power are compared between the synchronous divider and the asynchronous divider.

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分析了双模前置分频器的工作原理，提出了提高其工作速度的方法，包括给出一种新型高速CMOS动态D触发器的设计以及同步分频器的改进。

Through analyzing its work principle, we find the method to raise the speed: use a novel CMOS dynamic D flip-flop and an improved synchronous frequency divider.

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基于IS A总线的微秒级同步器采用可编程硬件定时，由晶振发出脉冲经分频后送入8254计数。

Programmable hardware timing was used in design of microsecond synchronizer based on ISA bus, after pulse generated by oscillator was divided frequency, it was sent to 8254 to count.

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