SY69754AL

www.DataSheet4U.com SY69754AL 3.3V, 622Mbps Clock and Data Recovery General Description The SY69754AL is a complete Clock Recovery and Data Retiming integrated circuit for OC-12/STS-12 applications at 622Mbps NRZ. The device is ideally suited for SONET/SDH/ATM applications and other high-speed data transmission systems. Clock recovery and data retiming is performed by synchronizing the on-chip VCO directly to the incoming data stream. The VCO center frequency is controlled by the reference clock frequency and the selected divide ratio. On-chip clock generation is performed through the use of a frequency multiplier PLL with a byte rate source as reference. The SY69754AL also includes a link fault detection circuit. Datasheets and support documentation can be found on Micrel’s web site at: www.micrel.com. Features 3.3V power supply SONET/SDH/ATM compatible Clock and data recovery for 622Mbps NRZ data stream Two on-chip PLLs: one for clock generation and another for clock recovery Selectable reference frequencies Differential PECL high-speed serial I/O Line receiver input: no external buffering needed Link fault indication 100k ECL compatible I/O Industrial temperature range (–40°C to +85°C) Available in 32-pin EPAD-TQFP Applications Ethernet media converter SONET/SDH/ATM OC-12 Proprietary architecture at 500Mbps to 650Mbps Micrel Inc. 2180 Fortune Drive San Jose, CA 95131 USA tel +1 (408) 944-0800 fax + 1 (408) 474-1000 http://www.micr...