sy56020r Micrel Semiconductor, sy56020r Datasheet

sy56020r

Manufacturer Part Number

sy56020r

Description

Low Voltage 1.2v/1.8v/2.5v Cml 1 4 Fanout Buffer 6.4gbps With Equalization

Manufacturer

Micrel Semiconductor

Datasheet

1.SY56020R.pdf (12 pages)

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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

differential

termination resistor networks in the signal path.

differential input can also accept AC-coupled LVPECL

and LVDS signals. Input voltages as small as 200mV

(400mV

transmission line. For AC-coupled input interface

applications, an internal voltage reference is provided to

bias the V

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

Datasheets and support documentation can be found on

Micrel’s web site at: www.micrel.com.

Functional Block Diagram

October 2008

Precision Edge is a registered trademark of Micrel, Inc.

MLF and MicroLeadFrame are registered trademarks of Amkor Technology.

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

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

pin. The outputs are CML, with extremely

signals,

architecture

without

product line.

that

any

interfaces

level-shifting

CML

The

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

• Ultra-low jitter design

• High-speed CML outputs

• 2.5V ±5% V

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

• Available in 16-pin (3mm x 3mm) MLF

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

Fanout Buffer 6.4Gbps with Equalization

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

– <1ps

operation

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

RMS

random jitter

, 1.2/1.8V/2.5V ±5% V

SY56020R

hbwhelp@micrel.com

CCO

or (408) 955-1690

M9999-100108-A

Precision Edge

package

power supply

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