ACS8582: Synchronous Equipment Timing Source for Stratum 3/4E and SMC Systems

The ACS8582 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 ACS8582 is fully compliant with the required international specifications and standards.

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Features

Suitable for Stratum 3, 4E and SONET Minimum Clock(SMC) or SONET/SDH Equipment Clock (SEC)applications (to Telcordia 1244-CORE Stratum 3 andGR-253, and ITU-T G.813 Options I and II specifications).
Accepts two individual input reference clocks with robust input clock source quality monitoring for T0 path.
Independent T4 DPLL with independent input.
Simultaneously generates four output clocks, plus two Sync pulse outputs.
Absolute Holdover accuracy better than 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.
IEEE 1149.1 JTAG Boundary Scan.
Single 3.3 V operation.