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