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在系统设计中,高度集成的现场可编程门阵列可以通过编写软件的方法来实现硬件功能,具有电路简单、应用方便等优点。本文介绍了ALTERA公司的ACEX1K系列芯片,及其在基于GPS的时统设备中的应用。利用其ClockLock和ClockBoost电路保证了时钟脉冲延迟和相位差的减小、时钟倍频的实现。
In the system design, the highly integrated field programmable gate array can realize the hardware function by writing software, which has the advantages of simple circuit and convenient application. This article describes ALTERA’s ACEX1K family of chips and their use in GPS-based time and date devices. Use its ClockLock and ClockBoost circuit to ensure that the clock pulse delay and phase difference decreases, the clock multiplier to achieve.