SY55854U_10 Datasheet, PDF (1/8 Pages) Micrel Semiconductor – 2 x 2 Protection Crosspoint Switch

SY55854U
2 x 2 Protection Crosspoint Switch
General Description
The SY55854U is a fully differential, CML, 2 x 2-crosspoint
switch. The non-blocking design allows any input to be
connected to any output. Varying the state of the select
inputs allows SY55854U to be used in backup, fault
tolerant, protection, and backplane distribution
applications.
SY55854U inputs can be terminated with a single resistor
between the true and the complement pins of a given
input.
The SY55854U is a member of Micrel’s new SuperLite^®
family of high-speed logic devices. This family features
very small packaging, high signal integrity, and flexible
supply voltage operation.
Datasheets and support documentation can be found on
Micrel’s web site at: www.micrel.com.
Functional Block Diagram
Features
SuperLite^®
• Guaranteed f_MAX >2.5GHz over temperature
• 2.3V to 5.7V power supply
• Non-blocking “switch architecture”
• Guaranteed <15ps channel-to-channel skew
• Guaranteed <480ps propagation delay over temperature
• Configurable as 2:1 mux, 1:2 fan-out buffer, dual buffer,
or 2 x 2 switch
• Accepts CML, PECL, LVPECL inputs
• Fully differential inputs/outputs
• Source terminated CML outputs for fast edge rates
• Wide operating temperature range: –40°C to +85°C
• Available in a tiny 16-pin EPAD-QSOP package
Applications
• High-speed logic
• Data communications systems
• Wireless communications systems
• Telecom systems
• Backplane redundancy
SuperLite 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 2010
M9999-011210-G
[e-mail] or [phone]