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SY58040U

Micrel

M9999-072904

hbwhelp@micrel.com or (408) 955-1690

Rev.: A

Amendment: /0

Issue Date:

July 2004

DESCRIPTION

s Provides crosspoint switching between any input

pair to any output pair

s Guaranteed AC performance over temperature and

voltage:

• DC to >5Gbps throughput

• <350ps propagation delay

• <25ps skew (output-to-output)

s Unique, patent-pending, channel-to-channel

isolation design provides superior crosstalk

performance

s Ultra-low jitter design:

s Unique, patent-pending, 50

extended CMVR, and VT pin accepts DC- and AC-

coupled differential inputs

s 400mV CML output swing

s 50

reflections

s Power supply 2.5V

s –40

s Available in 44-pin (7mm

××××× 7mm) MLF™ package

FEATURES

ULTRA PRECISION 4

×××××4 CML

SWITCH WITH INTERNAL

I/O TERMINATION

Precision Edge™

SY58040U

APPLICATIONS

s Data communication systems

s All SONET/SDH data/clock applications

s All Fibre Channel applications

s All Gigabit Ethernet applications

The SY58040U is a low jitter, low skew, high-speed 4

×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’s unique,

3-pin input termination architecture that directly interfaces

to any differential signal (AC or DC-coupled) as small as

resistor networks in the signal path. The outputs are 50

Ω

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

±5% or 3.3V ±10%

supply and is guaranteed over the full industrial temperature

range of –40

°C to +85°C. The SY58040U is part of Micrel’s

high-speed, Precision Edge™ product line.

Data sheets and support documentation can be found on

Micrel’s web site at www.micrel.com.

Precision Edge is a trademark of Micrel, Inc.

MLF and

Precision Edge™