SY89858UMG Micrel Inc, SY89858UMG Datasheet

SY89858UMG

Manufacturer Part Number

SY89858UMG

Description

IC BUFFER 1:8 LVPECL 32-MLF

Manufacturer

Micrel Inc

Series

Precision Edge®r

Type

Fanout Buffer (Distribution)r

Datasheet

1.SY89858UMG.pdf (10 pages)

Specifications of SY89858UMG

Number Of Circuits

Ratio - Input:output

1:8

Differential - Input:output

Yes/Yes

Input

CML, LVDS, PECL

Output

LVPECL

Frequency - Max

3GHz

Voltage - Supply

2.375 V ~ 3.6 V

Operating Temperature

-40°C ~ 85°C

Mounting Type

Surface Mount

Package / Case

32-MLF®, QFN

Frequency-max

3GHz

Number Of Outputs

Operating Supply Voltage (max)

3.6V

Operating Temp Range

-40C to 85C

Propagation Delay Time

0.38ns

Operating Supply Voltage (min)

2.375V

Mounting

Surface Mount

Pin Count

Operating Supply Voltage (typ)

2.5/3.3V

Package Type

MLF

Input Frequency

3GHz

Operating Temperature Classification

Industrial

Lead Free Status / RoHS Status

Lead free / RoHS Compliant

Other names

576-2103-5
SY89858UMG

Available stocks

Company

Part Number

Manufacturer

Quantity

Price

Company:

Bonase Electronics (HK) Co., Limited

Part Number:

SY89858UMG

Manufacturer:

MICREL

Quantity:

272

Current page: 1 of 10
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General Description

The SY89858U is a 2.5V/3.3V precision, high-

speed, fully differential LVPECL 1:8 fanout buffer

optimized to provide eight identical output copies

with less than 30ps of skew and less than 10ps

total jitter. It can process clock signals as fast as

2.0GHz.

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

input termination architecture that

SY89858U to directly interface to LVPECL, CML,

and LVDS differential signals (AC- or DC-coupled)

as small as 100mV without any level shifting or

termination resistor networks in the signal path. The

result is a clean, stub-free, low-jitter interface

solution.

compensated) outputs feature 800mV typical swing

into 50 Ω loads, and provide fast rise/fall times

guaranteed to be less than 200ps.

The SY89858U operates from a 2.5V ±5% supply or

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

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

applications that require a higher speed fanout

buffer, consider the SY58032U. The SY89858U is

part of Micrel’s high-speed, Precision Edge

line. All support documentation can be found on

Micrel’s web site at: www.micrel.com.

Precision Edge is a registered trademark of Micrel, Inc.

August 2007

Micrel Inc. • 2180 Fortune Drive • San Jose, CA 95131 • USA • tel +1 (

The

LVPECL

(100k

temperature

allows

product

the

408

Features

• Precision 1:8, LVPECL fanout buffer

• Low power: 238mW (2.5V)

• Guaranteed AC performance over temperature

• Ultra-low jitter design:

• 100k LVPECL compatible outputs

• Fully differential inputs/outputs

• Accepts an input signal as low as 100mV

• Unique patent pending input termination and VT

• Power supply 2.5V ±5% or 3.3V ±10%

• -40°C to +85°C industrial temperature range

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

Applications

• All SONET and GigE clock distribution

• All Fibre Channel clock and data distribution

• Network routing engine timing distribution

• High-end, low-skew multiprocessor synchronous

Markets

• LAN/WAN

• Enterprise servers

• ATE

• Test and measurement

Fanout Buffer with Internal Termination

) 944-0800 • fax + 1 (408) 474-1000 • http://www.micrel.com

and supply voltage:

– Wide operating frequency: DC to 2.0GHz

– <380ps In-to-Out t

– <200ps t

– <30ps skew

– <1ps

– <10ps

(200mV

pin accepts DC-coupled and AC-coupled

differential inputs (LVPECL, LVDS, and CML)

clock distribution

Precision Low Power 1:8 LVPECL

RMS

)

total jitter

cycle-to-cycle jitter

random jitter

hbwhelp@micrel.com

SY89858U

or (408) 955-1690

M9999-082907-C

Precision Edge

Related parts for SY89858UMG

SY89858UMG Summary of contents

Page 1

... All support documentation can be found on Micrel’s web site at: www.micrel.com. Precision Edge is a registered trademark of Micrel, Inc. Micrel Inc. • 2180 Fortune Drive • San Jose, CA 95131 • USA • tel +1 ( August 2007 Precision Low Power 1:8 LVPECL Fanout Buffer with Internal Termination Features • ...

Page 2

Micrel, Inc. Typical Application August 2007 2 hbwhelp@micrel.com SY89858U M9999-082907-C or (408) 955-1690 ...

Page 3

... Micrel, Inc. (1) Ordering Information Part Number Package SY89858UMG QFN-32 (2) SY89858UMGTR QFN-32 Notes: 1. Contact factory for die availability. Dice are guaranteed Tape and Reel. Pin Configuration Pin Description Pin Number Pin Name 3, 6 IN, / VREF- 16, 18, VCC 23, 25, 32 Q0, /Q0, Q1, 31, 30, 29, 28, /Q1, Q2, /Q2, ...

Page 4

Micrel, Inc. Absolute Maximum Ratings Supply Voltage (V ) .......................... –0.5V to +4.0V CC Input Voltage (V ) .................................. –0. Termination Current Source or sink current (3) Reference Current Source or sink current on ...

Page 5

Micrel, Inc. LVPECL Outputs DC Electrical Characteristics V = 2.5V ±5% or 3.3V ±10 Symbol Parameter V Output HIGH Voltage Output LOW Voltage Output Voltage Swing OUT ...

Page 6

Micrel, Inc. Typical Operating Characteristics Output Swing vs. Frequency 900 800 700 600 500 400 300 200 100 0 FREQUENCY (MHz) Functional Characteristics August 2007 Propagation Delay vs. Input Swing 270 265 260 255 250 245 240 0 200 400 ...

Page 7

Micrel, Inc. Singled-Ended and Differential Swings Figure 1a. Single-Ended Voltage Swing Timing Diagram Input and Output Stages Figure 2a. Simplified Differential Input Stage August 2007 Figure 1b. Differential Voltage Swing Figure 2b. Simplified LVPECL Output Stage 7 hbwhelp@micrel.com SY89858U M9999-082907-C ...

Page 8

Micrel, Inc. Input Interface Applications Figure 3a. LVPECL Interface (DC-Coupled) Figure 3d. CML Interface (AC-Coupled) August 2007 Figure 3b. LVPECL Interface (AC-Coupled) Figure 3e. LVDS Interface (DC-Coupled) 8 SY89858U Option: may connect Figure 3c. CML ...

Page 9

Micrel, Inc. LVPECL Output Interface Applications LVPECL has high input impedance, and very low output impedance (open emitter), and small signal swing which results in low EMI. LVPECL is ideal for driving 50 Ω and 100Ω controlled transmission lines. There ...

Page 10

Micrel, Inc. Package Information Package Notes: 1. Package meets Level 2 Moisture Sensitivity Classification. 2. All parts are dry-packaged before shipment. 3. Exposed pad must be soldered to a ground for proper thermal management. MICREL, INC. 2180 FORTUNE DRIVE SAN ...

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