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
  • ACS8522A
  • 集Lite同步设备定时源为3/ 4E/4和SMC系统
Semtech ACS8525A

Semtech ACS8525A

LC / P的SONET / SDH系统线路卡保护开关

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

Features


  • SONET/SDH applications up to OC-3/STM-1 bit rate.
  • Switches between grouped inputs (SEC/Sync pairs).
  • Inputs: three SECs at any of 2, 4, 8 kHz (and N x 8 kHz multiples up to 155.52 MHz), plus Frame Sync/Multi-Frame Sync.
  • Outputs: two SEC clocks at any of several spot frequencies from 2 kHz up to 77.76 MHz via the TTL/CMOS port and up to 311.04 MHz via the PECL/LVDS port.
  • Selectable clock I/O port technologies.
  • Modes for E3/DS3 and multiple E1/DS1 rate output clocks.
  • Frequency translation of SEC input clock to a different local line card clock.
  • Robust input clock source activity monitoring on all inputs.
  • Supports Free-run, Locked and Digital Holdover modes of operation.
  • Automatic “Hit-less” source switchover on loss of input.
  • External force fast switch between SEC1/SEC2 inputs.
  • Phase Build-out for output clock phase continuity during input switchover.
  • PLL “Locked” and “Acquisition” bandwidths individually selectable from 18, 35 or 70 Hz.
  • Serial interface for device set-up.
  • Single 3.3 V operation.
  • Operating temperature (ambient) of 0 to +70°C.
  • Available in LQFP 64 package.
  • Lead (Pb)-free version available (ACS8525T), RoHS and WEEE compliant.

Applications


Packaging

LQFP64

Order Codes

  • ACS8525 A: NCNR, 160 per tray, ok to order partial tray quantities
  • ACS8525AT: Lead-free, RoHS and WEEE compliant, NCNR, 160 per tray, ok to order partial tray quantities
 
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