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.
3.3V power supply
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)
Lower power: fully compatible with Micrel's SY87700V, but with 30% less power
Available in 32-pin ePad-TQFP and 28-pin SOIC packages, (28-pin SOIC is available, but NOT recommended for new designs.)