ACS8509T集成電路（IC）的應(yīng)用特定時(shí)鐘/定時(shí)規(guī)格書PDF中文資料

ACS8509T屬于集成電路（IC）的應(yīng)用特定時(shí)鐘/定時(shí)。由Semtech Corporation制造生產(chǎn)的ACS8509T應(yīng)用特定時(shí)鐘/定時(shí)專用時(shí)鐘和計(jì)時(shí) IC（集成電路）產(chǎn)品族中的產(chǎn)品主要用于執(zhí)行與時(shí)間或頻率信息生成和分配相關(guān)的各種操作，適合的設(shè)計(jì)環(huán)境較特定，例如 AMD 和 Intel 的中央處理單元 (CPU) 或圖形處理單元 (GPU)、DVD 音頻設(shè)備、藍(lán)光光盤播放器、以太網(wǎng)設(shè)備、PCIe、SATA、光纖通道接口、車載娛樂總線等。

Description

The ACS8509 is a highly integrated, single-chip solution for the Synchronous Equipment Timing Source (SETS) function in a SONET or SDH Network Element. The device generates SONET or SDH Equipment Clocks (SEC) and Frame Synchronization clocks. The ACS8509 is fully compliant with the required international specifications and standards.

The device supports Free-run, Locked and Holdover modes. It also supports all three types of reference clock source: recovered line clock, PDH network, and node synchronization. The ACS8509 generates independent SEC and BITS/SSU clocks, an 8 kHz Frame Synchronization clock and a 2 kHz Multi-Frame Synchronization clock.

Two ACS8509 devices can be used together in a Master/Slave configuration mode allowing system protection against a single ACS8509 failure.

Features

? Suitable for Stratum 3E*, 3, 4E, 4 and SONET Minimum Clock (SMC) or SONET/SDH Equipment Clock (SEC) applications

? Meets AT&T, ITU-T, ETSI and Telcordia specifications

? Accepts four individual input reference clocks

? Generates six output clocks

? Supports Free-run, Locked and Holdover modes of operation

? Robust input clock source quality monitoring on all inputs

? Automatic “hit-less” source switchover on loss of input

? Phase build-out for output clock phase continuity during input switchover and mode transitions

? Microprocessor interface - Intel, Motorola, Serial, Multiplexed, EPROM

? Programmable wander and jitter tracking attenuation 0.1 Hz to 20 Hz

? Support for Master/Slave device configuration alignment and hot/standby redundancy

? IEEE 1149.1 JTAG Boundary Scan

? Single +3.3 V operation, +5 V I/O compatible

? Operating temperature (ambient) -40°C to +85°C

? Available in 100 pin LQFP package.

? Lead (Pb)-free version available (ACS8509T), RoHS and WEEE compliant.