SY56011R Datasheet, PDF (1/12 Pages) Micrel Semiconductor – Low Voltage 1.2V/1.8V/2.5V CML 1:2 Fanout Buffer 6.4Gbps with Equalization

SY56011R
Low Voltage 1.2V/1.8V/2.5V CML 1:2
Fanout Buffer 6.4Gbps with Equalization
Preliminary
General Description
The SY56011R is a fully differential, low voltage
1.2V/1.8V/2.5V CML 1:2 Fanout Buffer with input
equalization. The SY56011R can process clock signals
as fast as 4.5 GHz or data patterns up to 6.4Gbps.
The differential input includes Micrel’s unique, 3-pin input
termination architecture that interfaces to CML
differential signals, without any level-shifting or
termination resistor networks in the signal path. The
differential input can also accept AC-coupled LVPECL
and LVDS signals. Input voltages as small as 200mV
(400mV_pp) are applied before the 9”, 18” or 27” FR4
transmission line. For AC-coupled input interface
applications, an internal voltage reference is provided to
bias the V_T pin. The outputs are CML, with extremely
fast rise/fall times guaranteed to be less than 80ps.
The SY56011R operates from a 2.5V ±5% core supply
and a 1.2V, 1.8V or 2.5V ±5% output supply and is
guaranteed over the full industrial temperature range (–
40°C to +85°C). The SY56011R 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.
Functional Block Diagram
Features
Precision Edge^®
• 1.2V/1.8V/2.5V CML 1:2 Fanout Buffer
• Equalizes 9, 18, 27 inches of FR4
• Guaranteed AC performance over temperature and
voltage:
– DC-to > 6.4Gbps Data throughput
– DC-to > 4.5GHz Clock throughput
– <280 ps propagation delay (IN-to-Q)
– <15ps within-device skew
– <80ps rise/fall times
• Ultra-low jitter design
– <1ps_RMS random jitter
• High-speed CML outputs
• 2.5V ±5% V_CC , 1.2/1.8V/2.5V ±5% V_CCO power supply
operation
• Industrial temperature range: –40°C to +85°C
• Available in 16-pin (3mm x 3mm) MLF^® package
Applications
• Data Distribution:
• SONET clock and data distribution
• Fiber Channel clock and data distribution
• Gigabit Ethernet clock and data distribution
Markets
• Storage
• ATE
• Test and measurement
• Enterprise networking equipment
• High-end servers
• 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
July 2008
M9999-070208-A
[e-mail] or [phone]