Analog Devices AD9549BCPZ

PLL Clock Synthesizer Single 64-Pin LFCSP EP Tray

750MHz LFCSP-64-VQ(9x9) Clock Jitter Cleaners & Synchronizers ROHS

Dual Input Network Clock Generator/Synchronizer / Clock Generator 0.008MHz to 750MHz-IN 725MHz-OUT 64-Pin LFCSP EP Tray

IC CLOCK GEN/SYNCHRONIZR 64LFCSP

The AD9549 provides synchronization for many systems, including synchronous optical networks (SONET/SDH). The AD9549 generates an output clock, synchronized to one of two external input references. The external references may contain significant time jitter, also specified as phase noise. Using a digitally controlled loop and holdover circuitry, the AD9549 continues to generate a clean (low jitter), valid output clock during a loss of reference condition, even when both references have failed. The AD9549 operates over an industrial temperature range of −40°C to +85°C. APPLICATIONS Network synchronization Reference clock jitter cleanup SONET/SDH clocks up to OC-192, including FEC Stratum 3/3E reference clocks Wireless base stations, controllers Cable infrastructure Data communications