ACS8530: Synchronous Equipment Timing Source for Stratum 2/3E/3 Systems

The ACS8530 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.


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Features

  • Highly integrated single-chip solution for the SETS function in a SONET or SDH network
  • Suitable for Stratum 2, 3E, 3, 4E and 4 and SONET Minimum Clock (SMC) or SONET/SDH Equipment Clock (SEC) applications
  • Meets specifications
    • Telcordia (Bellcore) 1244-CORE
    • Stratum 3E
    • GR-253
    • ITU-T G.812 Type III
    • ITU-T G.813
  • Accepts 14 individual input reference clocks, all with robust input clock source quality monitoring
  • Simultaneously generates nine 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, 0.5 MHz to 70 Hz in 18 steps
  • Automatic hit-less source switchover on loss of input
  • Phase transient protection and phase build-out on locked-to reference and on reference switching
  • Microprocessor interface
    • Intel
    • Motorola
    • Serial
    • Multiplexed
    • Boot from EPROM
  • Output phase adjustment in 6 ps steps up to ± 200 ns
  • IEEE 1149.1 JTAG boundary scan
  • Single 3.3 V operation; 5 V tolerant
  • LQFP-100 package
  • Lead (Pb) - free version available (ACS8530T), RoHS and WEEE compliant.

Diagrams

Block Diagram

ACS8530 - Block Diagram

Click diagram to enlarge

Packaging

LQFP100

Order Codes
  • ACS8530 : NCNR, 90 per tray, ok to order partial tray quantities
  • ACS8530T: Lead-free, RoHS and WEEE compliant, NCNR, 90 per tray, ok to order partial tray quantities