global clock

Using the techniques of standing wave and coupled oscillator, the skew and jitter in global clock networks could decrease dramatically.

使用驻波和耦合振荡器技术的全局时钟网可以显著的减少信号的偏斜和抖动。

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As working frequency is exact multiples of a certain frequency, a method to make all generated signals synchronous is introduced in detail for this multi-rate system, by using synchronization circuits with a global clock whose frequency is a common multiple of the overall working frequency.

针对系统各部分工作频率的特点，采用公倍数时钟作为全局时钟进行同步设计的方法，解决了多速率系统信号输出的同步问题。

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By reasonably using the special resources in FPGA, such as DCMs ( Digital Clock Manager) and BUFGMUXs ( global clock MUX buffer) and manually building up a proper clock circuit, the interference to timing caused by clock skew is mostly reduced.

通过合理使用DCM（数字时钟管理单元）和BUFG-MUX（全局时钟选择缓冲器）等FPGA的特殊资源，手动搭建时钟电路，可以尽可能地减少时钟偏差对电路时序的影响。

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