SY87700AL

SY87700AL Low-Power, 3.3V, 32Mbps to 208Mbps AnyRate® Clock and Data Recovery General Description The SY87700AL is a complete clock recovery and data retiming integrated circuit for data rates from 32Mbps up to 208Mbps 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 SY87700AL also includes a link fault detection circuit. Data sheets and support documentation can be found on Micrel’s web site at: www.micrel.com. Features AnyRate® 3.3V power supply SONET/SDH/ATM compatible Clock and data recovery from 32Mbps up to 208Mbps NRZ data stream; clock generation from 32Mbps to 208Mbps 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) Low power: fully compatible with Micrel’s SY87700V, but with 30% less power Available in 32-pin EPAD-TQFP and 28-pin EPAD SOIC packages, (28-pin SOIC is available, but NOT recommended for n...