Instrukcja obsługi Microchip SY56020R

Przeczytaj poniżej 📖 instrukcję obsługi w języku polskim dla Microchip SY56020R (11 stron) w kategorii nieskategoryzowany. Ta instrukcja była pomocna dla 15 osób i została oceniona przez 8 użytkowników na średnio 4.7 gwiazdek

SY56020R

Low Voltage 1.2V/1.8V/2.5V CML 1:4

Fanout Buffer 6.4Gbps with Equalization

Precision Edge is a registered trademark of Micrel, Inc.

Micrel Inc. • 2180 Fortune Drive • San Jose, CA 95131 • USA • tel +1 (408) 944-0800 • fax + 1 (408) 474-1000 • http://www.micrel.com

General Description

The SY56020R is a fully-differential, low-voltage

1.2V/1.8V/2.5V CML 1:4 Fanout Buffer with input

equalization. The SY56020R can process clock signals

as fast as 4.5GHz or data patterns up to 6.4Gbps.

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

termination architecture that interfaces to CML

differential signals, without any level-shifting or

termination resistor networks in the signal path. The

differential input can also accept AC-coupled LVPECL

and LVDS signals. Input voltages as small as 200mV

(400mVpp) are applied before the 9”, 18” or 27” FR4

transmission line. For AC-coupled input interface

applications, an internal voltage reference is provided to

bias the VT pin. The outputs are CML, with extremely

fast rise/fall times guaranteed to be less than 90ps.

The SY56020R operates from a 2.5V ±5% core supply

and a 1.2V, 1.8V or 2.5V ±5% output supply and is

guaranteed over the full industrial temperature range

(–40°C to +85°C). The SY56020R 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

•1.2V/1.8V/2.5V CML 1:4 Fanout Buffer

•Equalizes 9, 18, 27 inches of FR4

•Guaranteed AC performance over temperature and

voltage:

– DC-to > 6.4Gbps Data throughput

– DC-to > 4.5GHz Clock throughput

– <280 ps propagation delay (IN-to-Q)

– <15ps within-device skew

– <90ps rise/fall times

•Ultra-low jitter design

– <1psRMS random jitter

•High-speed CML outputs

•2.5V ±5% VCC , 1.2/1.8V/2.5V ±5% VCCO power supply

operation

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

•Available in 16-pin (3mm x 3mm) QFN package

Applications

•Data distribution

•SONET clock and data distribution

•Fiber Channel clock and data distribution

•Gigabit Ethernet clock and data distribution

Markets

•Storage

•ATE

•Test and measurement

•Enterprise networking equipment

•High-end servers

•Metro area network equipment

November 2010M9999-111810-A

hbwhelp@micrel.com

or (408) 955-1690

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