同步设备定时源锁相环
  • ACS8509
  • 同步设备定时源用于SONET或SDH网络单元
  • ACS8510
  • 启2.1同步设备定时源用于SONET或SDH网络单元
  • ACS8514
  • 同步设备定时源伙伴IC第二T4 DPLL,准确监测输入扩展器
  • ACS8515
  • 启2.1线卡保护开关用于SONET或SDH网络元素
  • ACS8520
  • 同步设备定时源(套)为3/ 4E/4和SMC系统
  • ACS8520A
  • 集Lite同步设备定时源为3/ 4E/4和SMC系统
  • ACS8522
  • 集Lite同步设备定时源为3/ 4E/4和SMC系统
  • ACS8522BT
  • 同步设备定时源为3/ 4E/4,SMC和以太网系统
Semtech ACS8522A

Semtech ACS8522A

集Lite同步设备定时源为3/ 4E/4和SMC系统

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Not Recommended for New Designs. Please contact your local Semtech sales representative.

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.
  • Lead (Pb)-free version available (ACS8522AT), RoHS and WEEE compliant.

Applications


Packaging

LQFP64

Order Codes

  • ACS8522 A: NCNR, 160 per tray, ok to order partial tray quantities
  • ACS8522AT: Lead-free, RoHS and WEEE compliant, NCNR, 160 per tray, ok to order partial tray quantities
 
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