SY55859L_10 Datasheet, PDF (1/12 Pages) Micrel Semiconductor – 3.3V, 3.2Gbps Dual 2X2 Crosspoint Switch

SY55859L
3.3V, 3.2Gbps Dual 2X2 Crosspoint Switch
General Description
The SY55859L is a dual CML 2x2 crosspoint switch
optimized for high-speed data and/or clock applications
(up to 3.2Gbps or 2.7GHz) where low jitter and skew are
critical. This device is pin-for-pin, plug-in compatible to the
MAX3840. Each 2x2 of the SY55859L routes any input to
any output, and thus can distribute or multiplex a clock or
data stream. The I/O architecture is fully differential and
CML compatible. Both inputs and outputs are optimized for
50 transmission lines. The inputs (DA 0-1 and DB 0-1)
are internally terminated with 50, thus eliminating
external termination, and the outputs (QA0-1 and QB0-1)
include 50 source termination. Furthermore, a power-
saving output enable feature is provided which powers-
down unused outputs.
The SY5859L operates from a +3.3V ±10% supply, and is
guaranteed over the industrial (–40°C to +85°C)
temperature range. It is available in a 32-pin (5mm x
5mm) QFN package.
For applications that require either lower voltage operation
or a more flexible input interface (for applications such as
AC–coupled LVPECL inputs), consider the SY55858U.
Features
SuperLite^TM
• Pin-for-pin, plug-in compatible to the MAX3840
• Supply voltage operation: +3.3V±10%
• Low Jitter:
-2ps_RMS random jitter
-5ps_PP deterministic jitter
• Power saving output disable feature
• 15ps channel-to-channel skew
• Fast CML outputs: <100ps t_r/t_f
• Available in a small (5mm x 5mm) 32-pin EPAD-QFN
package
Applications
• SONET/SDH optical transport
• High-speed backplane redundancy
• Add-drop multiplexers
Data sheets and support documentation can be found on
Micrel’s web site at: www.micrel.com.
___________________________________________________________________________________________________________
Typical Applications
Typical Performance
SuperLite is a 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
M9999-012110-A
[e-mail] or [phone]