SY56028XRMG Micrel Inc, SY56028XRMG Datasheet

SY56028XRMG

Manufacturer Part Number

SY56028XRMG

Description

IC MUX CML 4:1 DIFF LV 32MLF

Manufacturer

Micrel Inc

Series

Precision Edge®r

Type

Fanout Buffer (Distribution), Multiplexerr

Datasheet

1.SY56028XRMG.pdf (11 pages)

Specifications of SY56028XRMG

Number Of Circuits

Ratio - Input:output

4:2

Differential - Input:output

Yes/Yes

Input

CML, LVDS, LVPECL

Output

CML

Frequency - Max

4.5GHz

Voltage - Supply

2.375 V ~ 2.625 V

Operating Temperature

-40°C ~ 85°C

Mounting Type

Surface Mount

Package / Case

32-MLF®, QFN

Frequency-max

4.5GHz

Lead Free Status / RoHS Status

Lead free / RoHS Compliant

Other names

576-3699-5
SY56028XRMG

Available stocks

Company

Part Number

Manufacturer

Quantity

Price

Company:

Bonase Electronics (HK) Co., Limited

Part Number:

SY56028XRMG

Manufacturer:

Micrel Inc

Quantity:

135

Current page: 1 of 11
Download datasheet (306Kb)

April 2010

General Description

The SY56028XR is a fully differential, low voltage

1.2V/1.8V/2.5V CML 4:1 MUX, with input equalization,

and integrated 1:2 Fanout Buffer. The SY56028XR 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 DC-coupled

2.5V/3.3V LVPECL, 1.2V/1.8V/2.5V CML or LVDS

differential signals. For AC-coupled input applications,

an internal voltage reference is provided for input bias.

Input voltages as small as 200mV (400mV

before the 9, 18 or 27-inch FR4 transmission line.

The SY56028XR 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 SY56028XR is part of Micrel’s

high-speed, Precision Edge

Data sheets and support documentation can be found

on Micrel’s web site at: www.micrel.com.

Applications

• Data Distribution

• SONET clock and data distribution

• Fiber Channel clock and data distribution

• Gigabit Ethernet clock and data distribution

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

product line.

) are applied

Features

• 1.2V/1.8V/2.5V CML 4:2 MUX with input equalization.

• Guaranteed AC performance over temperature and

• Ultra-low jitter design

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

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

• Available in 32-pin (5mm x 5mm) QFN package

Functional Block Diagram

voltage:

– DC-to > 6.4Gbps throughput

– <360ps propagation delay (IN-to-Q)

– <15ps within-device skew

– <0.8ps

– <10ps

Low Voltage 1.2V/1.8V/2.5V CML

6.4Gbps with EQUALIZATION

4:1 MUX with 1:2 FANOUT

RMS

deterministic jitter

random jitter

SY56028XR

hbwhelp@micrel.com

Precision Edge

or (408) 955-1690

M9999-040810-A

Related parts for SY56028XRMG

SY56028XRMG Summary of contents

Page 1

... Gigabit Ethernet clock and data distribution 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 April 2010 Low Voltage 1.2V/1.8V/2.5V CML 4:1 MUX with 1:2 FANOUT 6 ...

Page 2

... Micrel, Inc. (1) Ordering Information Part Number Package SY56028XRMG QFN-32 (2) SY56028XRMGTR QFN-32 Notes: 1. Contact factory for die availability. Dice are guaranteed Tape and Reel. Pin Configuration April 2010 Operating Package Marking Type Range Industrial SY56028X with Pb-Free bar-line indicator Industrial SY56028X with Pb-Free bar-line indicator = 25° ...

Page 3

Micrel, Inc. Pin Description Pin Number Pin Name 1,3 IN0, /IN0 5,7 IN1, /IN1 25,27 IN2, /IN2 29,31 IN3, /IN3 2 VT0 6 VT1 26 VT2 30 VT3 SEL0 18 SEL1 16,17 VCC 10,13,20,23 VCCO 4,8,9,24,28,32 GND, ...

Page 4

Micrel, Inc. Absolute Maximum Ratings Supply Voltage (V ) ............................... –0.5V to +3.0V CC Supply Voltage (V ) ............................. –0.5V to +3.0V CCO V -V ................................................................ <1.8V CC CCO V -V ............................................................... <0.5 V CCO CC Input Voltage (V ) ...

Page 5

Micrel, Inc. CML Outputs DC Electrical Characteristics = 50Ω 1.14V to 1.26V R CCO 1.7V to 1.9V, 2.375V to 2.625V, R CCO V = 2.375V to 2.625V –40°C to +85°C, unless ...

Page 6

Micrel, Inc. AC Electrical Characteristics = 50Ω 1.14V to 1.26V R CCO 1.7V to 1.9V, 2.375V to 2.625V, R CCO V = 2.375V to 2.625V –40°C to +85°C, unless otherwise stated. ...

Page 7

Micrel, Inc. Functional Description CML Output Termination with VCCO 1.2V For VCCO of 1.2V, Figure 5a, terminate the output with 50 Ohms to 1.2V, not 100 ohms differentially across the outputs coupling is used, Figure 5d, terminate into ...

Page 8

Micrel, Inc. Input and Output Stage Figure 2a. Simplified Differential Input Buffer Single-Ended and Differential Swings Figure 3a. Single-Ended Swing April 2010 Figure 2b. Simplified CML Output Buffer Figure 3b. Differential Swing 8 hbwhelp@micrel.com SY56028XR M9999-040810-A or (408) 955-1690 ...

Page 9

Micrel, Inc. Input Interface Applications Figure 4a. CML Interface 100 Ω Differential (DC-Coupled, 1.8V, 2.5V) Figure 4d. LVPECL Interface (AC-Coupled) April 2010 Figure 4b. CML Interface 50 Ω to Vcc (DC-Coupled, 1.2V,1.8V,2.5V) Figure 4e. LVPECL Interface (DC-Coupled 2.5V and 3.3V) ...

Page 10

Micrel, Inc. CML Output Termination Figure 5a. 1.2V, 1.8V, 2.5V CML DC-Coupled Termination Figure 5c. CML AC-Coupled Termination V 1.8V, 2.5V only CCO April 2010 Figure 5b. 1.8V, 2.5V CML DC-Coupled Termination Figure 5d. CML AC-Coupled Termination V 1.2V only ...

Page 11

Micrel, Inc. Package Information MICREL, INC. 2180 FORTUNE DRIVE SAN JOSE, CA 95131 USA TEL +1 (408) 944-0800 FAX +1 (408) 474-1000 WEB http://www.micrel.com The information furnished by Micrel in this data sheet is believed to be accurate and reliable. ...

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