ZL30138GGG2

ZL30138GGG2 Features

• Supports the requirements of ITU-T G.8262 forsynchronous Ethernet Equipment slave Clocks(EEC option 1 and 2) • Supports the requirements of Telcordia GR-1244Stratum 2/3/3E and GR-253, ITU-T G.812, G.813,and G.781 SETS • Supports ITU-T G.823, G.824 and G.8261 for2048 kbits/s and 1544 kbits.s interfaces • Meets the SONET/SDH jitter generationrequirements up to OC-192/STM-64 • Synchronizes to telecom reference clocks (2 kHz,N*8 kHz up to 77.76 MHz, 155.52 MHz) or toEthernet reference clocks (25 MHz, 50 MHz,62.5 MHz, 125 MHz) • Supports composite clock inputs (64 kHz, 64 kHz+ 8 kHz, 64kHz + 8 kHz + 400 Hz) • Generates standard SONET/SDH clock rates(e.g. 19.44 MHz, 38.88 MHz, 77.76 MHz,155.52 MHz, 622.08 MHz) or Ethernet clock rates(e.g. 25 MHz, 50 MHz, 125 MHz, 156.25 MHz,312.5 MHz) for synchronizing Gigabit EthernetPHYs • Programmable output synthesizers (P0, P1)generate telecom clock frequencies from anymultiple of 8 kHz up to 100 MHzOrdering InformationZL30138GGG 100 Pin CABGA TraysZL30138GGG2 100 Pin CABGA* Trays*Pb Free Tin/Silver/Copper-40oC to +85oC • Generates several styles of telecom frame pulseswith selectable pulse width, polarity andfrequency • Provides two DPLLs which are independentlyconfigurable through a serial interface •Internal state machine automatically controlsmode of operation (free-run, locked, holdover) • Flexible input reference monitoring automaticallydisqualifies references based on frequency andphase irregularities • Provides automatic reference switching andholdover during loss of reference input • Supports master/slave configuration and dynamicinput to output delay compensation forAdvancedTCATM • Configurable input to output delay and output tooutput phase alignmentFigure 1 - Functional Block Diagram1

ZL30138GGG2 Applications

•ITU-T G.8262 System Timing Cards which support 1 GbE and 10 GbE interfaces • Telcordia GR-253 Carrier Grade SONET/SDH Stratum 2/3E/3 System Timing Cards • System Timing Cards which support ITU-T G.781 SETS (SDH Equipment Timing Source)