ACS8514T集成电路（IC）的应用特定时钟/定时规格书PDF中文资料

ACS8514T属于集成电路（IC）的应用特定时钟/定时。由升特制造生产的ACS8514T应用特定时钟/定时专用时钟和计时 IC（集成电路）产品族中的产品主要用于执行与时间或频率信息生成和分配相关的各种操作，适合的设计环境较特定，例如 AMD 和 Intel 的中央处理单元 (CPU) 或图形处理单元 (GPU)、DVD 音频设备、蓝光光盘播放器、以太网设备、PCIe、SATA、光纤通道接口、车载娱乐总线等。

描述 Description

The ACS8514 is an optional partner integrated circuit for applications using the ACS8520/30. It adds an additional BITS clock (T4 path) DPLL to a clock synchronization system, for applications needing two T4 paths (e.g. to GR-253 figure 5-21).

特性 Features

♦ Partner to the ACS8520 & ACS8530 for use in SONET Minimum Clock (SMC) or SONET/SDH Equipment Clock (SEC) applications, to provide :

♦ One Extra independent T4 path for those systems being designed to Figure 5-21 of Bellcore GR253[17],

♦ An additional DPLL for accurate phase, average phase, frequency and average frequency measuring of any clock source.

♦ Phase measurement accuracy to 0.7 degrees.

♦ Frequency measurement accuracy to 3x10-10

♦ Aids in enhancing Phase Build-out performance to absorb phase disturbances when switching between noisy input sources, via s/w control.

♦ Provides the facility to have long term frequency measuring and averaging for BOTH the main and any standby clock source so that the holdover frequency is always accurate for both main and standby clock selections.

♦ Accepts 14 individual input reference clocks, all with robust input clock source quality monitoring.

♦ Microprocessor interface - Intel, Motorola, Serial, Multiplexed, or boot from EPROM

♦ IEEE 1149.1[5] JTAG Boundary Scan

♦ Single 3.3 V operation. 5 V tolerant

♦ Lead (Pb)-free version available (ACS8514T), RoHS and WEEE compliant