Microchip Technology, Inc. SONET/SDH Line Card System Synchronizer ZL30122

The ZL30122 SONET/SDH Line Card Synchronizer is a highly integrated device that provides timing and synchronization for network interface cards. The DPLL is capable of locking to one of three input references and provides a wide variety of synchronized output clocks and frame pulses. Click here for secure documentation Additional Features Typical Applications AMCs for AdvancedTCATMSystems Multi-Service Edge Switches or Routers DSLAM Line Cards WAN Line Cards RNC/Mobile Switching Center Line Cards ADM Line Cards Features & Benefits Synchronizes with standard telecom system references and synthesizes a wide variety of protected telecom line interface clocks that are compliant with Telcordia GR-253-CORE and ITU-T G.813 Internal APLL provides standard output clock frequencies up to 622.08 MHz with jitter < 3 ps RMS suitable for GR-253-CORE OC-12 and G.813 STM-16 interfaces Programmable output synthesizer generates clock frequencies from any multiple of 8 kHz up to 77.76 MHz in addition to 2 kHz Provides 3 reference inputs which support clock frequencies with any multiples of 8 kHz up to 77.76 MHz in addition to 2 kHz Digital Phase Locked-Loop (DPLL) provides all the features necessary for generating SONET/SDH compliant clocks including automatic hitless reference switching, automatic mode selection (locked, free-run, holdover), and selectable loop bandwidth Generates several styles of output frame pulses with selectable pulse width, polarity, and frequency