|
SY87700AL_09 Datasheet, PDF (1/16 Pages) Micrel Semiconductor – Low-Power, 3.3V, 32Mbps to 208Mbps AnyRate Clock and Data Recovery | |||
|
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 Micrelâs 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 (â40°C to +85°C)
⢠Low power: fully compatible with Micrelâs 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 ⢠http://www.micrel.com
August 2009
M9999-082009-D
hbwhelp@micrel.com or (408) 955-1690
|
▷ |