Microchip SY58037U Handleiding

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Precision Edge

®

SY58037U

Micrel, IIIIInc.

M9999-010708

[email protected] or (408) 955-1690

DESCRIPTION

Selects between 1 of 8 inputs, and provides two

precision, low skew CML output copies

Guaranteed AC performance over temperature and

voltage:

•DC to 5Gbps throughput

•<450ps propagation delay IN-to-Q (V

IN

≥ 300mV)

•<70ps t

r

/t

f

time

•<15ps skew (output-to-output)

Unique, patent-pending, channel-to-channel

isolation design provides superior crosstalk

performance

Ultra-low jitter design:

•<1ps

RMS

random jitter

•<10ps

PP

deterministic jitter

•<10ps

PP

total jitter (clock)

•<0.7ps

RMS

crosstalk-induced jitter

Unique, patent-pending, input termination and VT

pin accepts DC- and AC-coupled inputs (CML, PECL,

LVDS)

400mV CML output swing

50

Ω source terminated outputs minimize round-trip

reflections

Power supply 2.5V ±5% or 3.3V ±10%

–40°C to +85°C temperature range

Available in 44-pin (7mm x 7mm) QFN package

FEATURES

ULTRA PRECISION 8:1MUX

WITH INTERNAL TERMINATION

AND 1:2 CML FANOUT BUFFER

PrecisionEdge

®

SY58037U

APPLICATIONS

All SONET/SDH data/clock applications

All Fibre Channel applications

All Gigabit Ethernet applications

Rev.:EAmendment: /0

Issue Date:January 2008

The SY58037U is a low jitter, low skew, high-speed 8:1

multiplexer with a 1:2 differential fanout buffer optimized for

precisiontelecomandenterpriseserverdistribution

applications. The SY58037U distributes clock frequencies

from DC to 4GHz and data rates to 5Gpbs guaranteed over

temperature and voltage.

The SY58037U 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

100mV (200mVpp) without any level shifting or termination

resistor networks in the signal path. The outputs are 50Ω

source-terminatedCMLwith extremely fast rise/falltime

guaranteed to be less than 70ps.

The SY58037U features a patent-pendingisolationdesign

that significantly improves channel-to-channel crosstalk

performance.

The SY58037U operates from a 2.5V ±5% or 3.3V ±10%

supply and is guaranteed over the fullindustrial temperature

range of –40°C to +85°C. The SY58037U 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.

Precision Edge

®

Data communication systems

Precision Edge is a registered trademark of Micrel, Inc.

Product specificaties