SY56023R_12 Datasheet, PDF (1/12 Pages) Micrel Semiconductor – Low Voltage 1.2V/1.8V/2.5V CML 2x2 Crosspoint Switch 6.4Gbps with Equalization

SY56023R
Low Voltage 1.2V/1.8V/2.5V CML 2x2
Crosspoint Switch 6.4Gbps with
Equalization
General Description
The SY56023R is a fully-differential, low-voltage
1.2V/1.8V/2.5V CML 2x2 crosspoint switch with input
equalization. The SY56023R 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 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 SY56023R 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 SY56023R 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 2x2 Crosspoint Switch
 Equalizes 9, 18, 27 inches of FR4
 Guaranteed AC performance over temperature and
voltage:
– DC-to > 6.4Gbps Data throughput
– DC-to > 5GHz Clock throughput
– <280 ps propagation delay (IN-to-Q)
– <15 ps output skew
– <80 ps rise/fall times
 Ultra-low jitter design
– <1 ps_RMS cycle-to-cycle 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) QFN package
Functional Block Diagram
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.
Micrel Inc. • 2180 Fortune Drive • San Jose, CA 95131 • USA • tel [phone] • fax + 1 [phone] • http://www.micrel.com
January 2012
M9999-011112-B
[e-mail] or [phone]