ZL30461

The ZL30461 is a Compact Timing Module, which functions as a complete system clock solution for general Stratum 3 and SONET/SDH timing applications.

The ZL30461 uses Zarlink's Digital and Analog Phase Locked Loop (DPLL and APLL) technology and can lock to 1 of 4 input frequencies automatically. The module has multiple output clocks ranging from 8 kHz to 155.52 MHz, its primary output at 77.76 MHz has low jitter performance at less than 40 ps (Pk to Pk). The availability of multiple clocks and features such as holdover and out-of-range detection enable the ZL30461 to be used on the master timing card as well as the linecard.