Synchronous Equipment Timing Source PLL
  • ACS8522BT
    • Synchronous Equipment Timing Source for Stratum 3/4E/4, SMC and Ethernet Systems
  • ACS8595
    • ATCA Line Card Protection Switch for SONET/SDH AdvancedTCA Systems
  • ACS8530
    • Synchronous Equipment Timing Source for Stratum 2/3E/3 Systems
  • ACS8527
    • MUXPLL Line Card Protection Switch for PDH, SONET, or SDH Systems
  • ACS8526
    • LC/P Lite Line Card Protection Switch for PDH, SONET, or SDH Systems
  • ACS8525A
    • LC/P Line Card Protection Switch for SONET/SDH Systems
  • ACS8525
    • Line Card Protection Switch for SONET/SDH Systems
  • ACS8522A
    • SETS LITE Synchronous Equipment Timing Source for Stratum 3/4E/4 and SMC Systems
Semtech ACS8522

Semtech ACS8522

SETS Lite Synchronous Equipment Timing Source for Stratum 3/4E/4 and SMC Systems

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 Stratum 3 and GR-253, and ITU-T G.813 Options and 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 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.

Applications


Packaging

LQFP64

Order Codes

  • ACS8522 : NCNR, 160 per tray, ok to order partial tray quantities
  • ACS8522T: Lead-free, RoHS and WEEE compliant, NCNR, 160 per tray, ok to order partial tray quantities