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.

FEATUREs
• 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 new designs.)

APPLICATIONs
• SONET/SDH/ATM OC-1 and OC-3
• Fast Ethernet, SMPTE 259
• Proprietary architecture up to 208Mbps