ACS8522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

ACS8522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ACS8522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 ACS8522 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 ACS8522 is fully compliant with the required international specifications and standards.

Features

◆ Suitable for Stratum 3, 4E, 4 and SONET Minimum Clock (SMC) or SONET/SDH Equipment Clock (SEC) applications (to Telcordia 1244-CORE[19] Stratum 3 and GR-253[17], and ITU-T G.813[11] Options Ι and ΙΙ specifications)

◆ Accepts four individual input reference clocks, all with robust input clock source quality monitoring

◆ Simultaneously generates four output clocks, plus two Sync pulse outputs

◆ Absolute Holdover accuracy better than 3 x 10-10 (manual), 7.5 x 10-14 (instantaneous); Holdover stability defined by choice of external XO

◆ Programmable PLL bandwidth, for wander and jitter tracking/attenuation, 0.1 Hz to 70 Hz in 10 steps

◆ Automatic hit-less source switchover on loss of input

◆ Serial SPI compatible interface

◆ Output phase adjustment in 6 ps steps up to ±200 ns

◆ IEEE 1149.1[5] JTAG Boundary Scan

◆ Available in LQFP 64-pin package

◆ Single 3.3 V operation. 5 V tolerant

◆ Lead (Pb)-free version available (ACS8522T), RoHS and WEEE compliant.