延迟电路可通用于输出时钟的频率调整以及相位调整这两方面。
The delay circuit is used for both frequency and phase adjustments of the output clock.
传统电压控制模式的电机驱动电路系统频率都受电机的本征频率制约，其相位延迟会随负载的变化而变化。
The system bandwidth of conventional voltage-control-mode motor driver circuits is limited by the intrinsic frequency of the load, and its phase lag is also load-dependent.
但由于各通道光信号传输距离不同以及电路自身延迟会导致未知的相位差，给信号的处理带来困难。
But due to different transmission distances among various channels, and self-delay, unknown phase difference may occur, to bring difficulty for signal processing.
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