Microchip SY58604U Handleiding

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SY58604U

3.2Gbps Precision, LVPECL Buffer with

Internal Termination and Fail Safe Input

Micrel Inc. • 218

0 Fortune Drive • San Jose, CA 95131 • USA • tel +1 (408) 944-0800 • fax + 1 (408) 474-1000 • ht

tp://www.micrel.com

General Description

The SY586

04U is a 2.5/3.3V, high-speed, fully

differential LVPECL buffer optimized to provide only

108fs

RMS

phase jitter. The SY58604U can process clock

signals as fast as 2.5GHz or data patterns up to

3.2Gbps.

The differential input includes Micrel’s unique, 3-pin

input termination architecture that interfaces to LVPECL,

LVDS or CML differential signals, (AC- or DC-coupled)

as small as 100mV (200mV

pp

) without any level-shifting

or termination resistor networks in the signal path. For

AC-coupled input interface applications, an integrated

voltage reference (V

REF-AC

) is provided to bias the V

T

pin.

The output is 800mV LVPECL, with extremely fast

rise/fall times guaranteed to be less than 110ps.

The SY58604U operates from a 2.5V ±5% supply or

3.3V ±10% supply and is guaranteed over the full

industrial temperature range (–40°C to +85°C). For

applications that require CML or LVDS outputs, consider

the SY58603U and the SY58605U, buffers with 400mV

and 325mV output swings respectively. The SY58604U

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

.

Functional Block Diagram

Precision Edge

®

Features

•Prec

ision 800mV LVPECL buffer

•Ultra-low jitter design

–108fs

RMS

phase jitter

•Guaranteed AC performance over temperature and

voltage:

–DC-to > 3.2Gbps throughput

–<350ps typical propagation delay (IN-to-Q)

–<110ps rise/fall times

•Fail Safe Input

–Prevents output from oscillating when input is

invalid

•High-speed LVPECL output

•2.5V ±5% or 3.3V ±10% power supply operation

•Industrial temperature range: –40°C to +85°C

•Available in 8-pin (2mm x 2mm) DFN package

Applications

•All SONET clock and data distribution

•Fibre Channel clock and data distribution

•Gigabit Ethernet clock and data distribution

•Backplane distribution

Markets

•Storage

•ATE

•Test and measurement

•Enterprise networking equipment

•High-end servers

•Access

•Metro area network equipment

September 2011

M9999-092911-D

[email protected]

or (408) 955-1690

Precision Edge is a registered trademark of Micrel, Inc.

Product specificaties