ACS8522BT集成電路（IC）的應(yīng)用特定時(shí)鐘/定時(shí)規(guī)格書(shū)PDF中文資料

ACS8522BT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ACS8522BT應(yīng)用特定時(shí)鐘/定時(shí)專(zhuān)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(pán)播放器、以太網(wǎng)設(shè)備、PCIe、SATA、光纖通道接口、車(chē)載娛樂(lè)總線(xiàn)等。

Description

The ACS8522BT 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), frame synchronization clocks and Ethernet clocks. The ACS8522BT 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) and Ethernet applications.

? Meets Telcordia 1244-CORE Stratum 3 and GR-253, and ITU-T G.813 Options I and II and ITU-T G.8262 (Draft) 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.

? Generates four Ethernet frequencies (25 Mhz, 50 MHz, 62.5 MHz and 125 MHz) on any combination of four TO 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 JTAG Boundary Scan.

? Single 3.3 V operation.

? Available in LQFP 64-pin package.

? Lead (Pb)-free, Halogen free, RoHS and WEEE compliant.