SY87700ALHG Microchip

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 AnyRate to 208Mbps NRZ. The device is ideally suited for Features SONET/SDH/ATM applications and other high-speed data transmission systems. 3.3V power supply Clock recovery and data retiming is performed by SONET/SDH/ATM compatible synchronizing the on-chip VCO directly to the incoming Clock and data recovery from 32Mbps up to data stream. The VCO center frequency is controlled by 208Mbps NRZ data stream clock generation from the reference clock frequency and the selected divide 32Mbps to 208Mbps ratio. On-chip clock generation is performed through the Two on-chip PLLs: one for clock generation and use of a frequency multiplier PLL with a byte rate source another for clock recovery as reference. Selectable reference frequencies The SY87700AL also includes a link fault detection Differential PECL high-speed serial I/O circuit. Line receiver input: no external buffering needed Data sheets and support documentation can be found on Micrels web site at: www.micrel.com. Link fault indication 100K ECL-compatible I/O Industrial temperature range (40C to +85C) Low power: fully compatible with Micrels 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 new designs.) Applications SONET/SDH/ATM OC-1 and OC-3 Fast Ethernet, SMPTE 259 Proprietary architecture up to 208Mbps AnyRate is a registered trademark of Micrel, Inc. Micrel Inc. 2180 Fortune Drive San Jose, CA 95131 USA tel +1 (408) 944-0800 fax + 1 (408) 474-1000 Micrel, Inc. SY87700AL (1) Ordering Information Part Number Package Operating Package Lead Type Range Marking Finish (2) SY87700ALZG Z28-1 Industrial SY87700ALZG with NiPdAu Pb-Free bar-line indicator Pb-Free (2) SY87700ALHG H32-1 Industrial SY87700ALHG with NiPdAu Pb-Free bar-line indicator Pb-Free Notes: 1. Contact factory for die availability. Dice are guaranteed at T = 25C, DC Electricals only. A 2. Pb-Free package is recommended for new designs. Pin Configuration 32-Pin EPAD-TQFP (H32-1) 28-Pin SOIC (Z28-1) 2 M9999-082009-D August 2009 hbwhelp micrel.com or (408) 955-1690