ACS8522A
Overview
- 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
