SY56040AR Datasheet, PDF (1/14 Pages) Micrel Semiconductor – Low Voltage 1.2V/1.8V/2.5V CML 4x4 Crosspoint Switch 6.4Gbps, 5GHz

SY56040AR
Low Voltage 1.2V/1.8V/2.5V CML 4x4
Crosspoint Switch 6.4Gbps, 5GHz
General Description
The SY56040AR is a fully differential, low voltage
1.2V/1.8V/2.5V CML 4x4 Crosspoint switch. The
SY56040AR can process clock signals as fast as 5GHz
or data patterns up to 6.4Gbps.
The differential input includes Micrel’s unique, 3-pin
input termination architecture that interfaces to LVPECL,
LVDS or CML differential signals as small as 100mV
(200mV_pp) without any level-shifting or termination
resistor networks in the signal path. For AC-coupled
input interface applications, an internal voltage
reference is provided to bias the V_T pin. The outputs are
400mV CML, with extremely fast rise/fall times
guaranteed to be less than 80ps.
The SY56040AR operates from a 2.5V ±5% core supply
and a 1.2V/1.8V/2.5V ±5% output supply and is
guaranteed over the full industrial temperature range (–
40°C to +85°C). The SY56040AR is part of Micrel’s
high-speed, Precision Edge^® product line.
Datasheets and support documentation can be found on
Micrel’s web site at: www.micrel.com.
Features
Precision Edge^®
• 1.2V/1.8V/2.5V CML 4x4 Crosspoint Switch
• Guaranteed AC performance over temperature and
voltage:
– DC to 6.4Gbps throughput
– <400ps typical propagation delay (IN-to-Q)
– <25ps typical output skew
– <80ps rise/fall times
• Ultra-low jitter design
– <1ps_RMS cycle-to-cycle jitter
– <10ps_PP total jitter
– <1ps_RMS random jitter
– <10ps_PP deterministic jitter
• High-speed CML outputs
• 2.5V ±5% , 1.2V/1.8V/2.5V ±5% power supply
operation
• Industrial temperature range: –40°C to +85°C
• Available in 44-pin (7mm x 7mm) MLF^® package
Applications
• Data Distribution: OC-48, OC-48+FEC
• SONET clock and data distribution
• Fibre Channel clock and data distribution
• Gigabit Ethernet clock and data distribution
Markets
• Storage
• ATE
• Test and measurement
• Enterprise networking equipment
• High-end servers
• Access
• Metro area network equipment
Precision Edge is a registered trademark of Micrel, Inc.
MLF and MicroLeadFrame are registered trademarks of Amkor Technology.
Micrel Inc. • 2180 Fortune Drive • San Jose, CA 95131 • USA • tel [phone] • fax + 1 [phone] • http://www.micrel.com
September 2008
M9999-093008-A
[e-mail] or [phone]