Precision Edge鈩?/div>
DESCRIPTION
The SY58040U is a low jitter, low skew, high-speed 4脳4
crosspoint switch optimized for precision telecom and
enterprise server/storage distribution applications. The
SY58040U distributes clock frequencies from DC to 4GHz,
and data rates to 5Gbps guaranteed over temperature and
voltage.
The SY58040U differential input includes Micrel鈥檚 unique,
3-pin input termination architecture that directly interfaces
to any differential signal (AC or DC-coupled) as small as
100mV (200mV
pp
) without any level shifting or termination
resistor networks in the signal path. The outputs are 50鈩?/div>
source-terminated CML with extremely fast rise/fall times
guaranteed to be less than 60ps.
The SY58040U features a patent-pending isolation design
that significantly improves on channel-to-channel crosstalk
performance.
The SY58040U operates from a 2.5V
鹵5%
or 3.3V
鹵10%
supply and is guaranteed over the full industrial temperature
range of 鈥?0擄C to +85擄C. The SY58040U is part of Micrel鈥檚
high-speed, Precision Edge鈩?product line.
Data sheets and support documentation can be found on
Micrel鈥檚 web site at www.micrel.com.
s
Unique, patent-pending, 50
鈩?/div>
input termination
extended CMVR, and VT pin accepts DC- and AC-
coupled differential inputs
s
400mV CML output swing
s
50
鈩?/div>
source terminated outputs minimize round-trip
reflections
s
Power supply 2.5V
鹵
5% or 3.3V
鹵
10%
s
鈥?0
擄
C to +85
擄
C temperature range
s
Available in 44-pin (7mm
脳
7mm) MLF鈩?package
APPLICATIONS
s
s
s
s
Data communication systems
All SONET/SDH data/clock applications
All Fibre Channel applications
All Gigabit Ethernet applications
Precision Edge is a trademark of Micrel, Inc.
MLF and
Micro
LeadFrame are trademarks of Amkor Technology, Inc.
M9999-072904
hbwhelp@micrel.com or (408) 955-1690
Rev.: A
Amendment: /0
1
Issue Date: July 2004
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