SY89859UMG TR Micrel Inc, SY89859UMG TR Datasheet

SY89859UMG TR

Manufacturer Part Number

SY89859UMG TR

Description

IC MUX 8:1 PREC LP 44-MLF

Manufacturer

Micrel Inc

Series

SY89r

Type

Multiplexerr

Datasheet

1.SY89859UMY.pdf (13 pages)

Specifications of SY89859UMG TR

Circuit

1 x 8:1

Independent Circuits

Voltage Supply Source

Single Supply

Voltage - Supply

3 V ~ 3.6 V

Operating Temperature

-40°C ~ 85°C

Mounting Type

Surface Mount

Package / Case

44-MLF®, QFN

Lead Free Status / RoHS Status

Lead free / RoHS Compliant

Current - Output High, Low

Other names

SY89859UMGTR
SY89859UMGTR

Current page: 1 of 13
Download datasheet (476Kb)

General Description

The SY89859U is a low jitter, low-power, high-speed

8:1 multiplexer with a 1:2 differential fanout buffer

optimized for precision telecom and enterprise server

distribution applications. The SY89859U distributes

clock frequencies from DC to >2.5GHz, and data rates

to 2.5Gbps guaranteed over temperature and voltage.

The SY89859U differential input includes Micrel’s

unique, 3-pin input termination architecture that

directly interfaces to any differential signal (AC- or

DC-coupled) as small as 100mV (200mVpp) without

level shifting or termination resistor networks in the

signal path. The outputs are 800mV, 100K-compatible

LVPECL with extremely fast rise/fall time guaranteed

to be less than 180ps.

The SY89859U features a patent-pending isolation

design that significantly improves on channel-to-

channel crosstalk-induced jitter performance.

The SY89859U operates from a 2.5V ±5% or 3.3V

±10% supply and is guaranteed over the full industrial

temperature range of –40°C to +85°C. The SY89859U

is part of Micrel’s high-speed, Precision Edge

line.

All

Micrel’s web site at:

December 2007

Precision Edge is a registered trademark of Micrel, Inc.

support

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

documentation

www.micrel.com.

can

found

product

Precision Low-Power 8:1 MUX with Internal

Termination and 1:2 LVPECL Fanout Buffer

Features

• Selects between 1 of 8 inputs, and provides 2

• Low power: 150mW typ. (2.5V)

• Guaranteed AC performance over temperature and

• Unique, patent-pending channel-to-channel

• Ultra-low jitter design:

• Unique, patented input termination and VT pin

• Power supply 2.5V ±5% or 3.3V ±10%

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

• Available in 44-pin (7mm x 7mm) QFN package

Applications

• Data communication systems

• All SONET/SDH data/clock applications

• All Fibre Channel applications

• All Gigabit Ethernet applications

precision, low skew 100K-compatible LVPECL

output copies

voltage:

– DC to >2.5Gbps

– DC to >2.5GHz

– <690ps propagation delay

– <180ps t

– <20ps skew (output-to-output)

isolation design provides superior crosstalk

performance

– <1ps

– <10ps

– <1ps

– <0.7ps

accepts DC- and AC-coupled inputs (CML, PECL,

LVDS)

RMS

SY89859U

deterministic jitter

total jitter (clock)

random jitter

cycle-to-cycle jitter

crosstalk-induced jitter

time

hbwhelp@micrel.com

Precision Edge

or (408) 955-1690

M9999-120607-D

Related parts for SY89859UMG TR

SY89859UMG TR Summary of contents

Page 1

... 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 (408) 944-0800 • fax + 1 (408) 474-1000 • http://www.micrel.com December 2007 Precision Low-Power 8:1 MUX with Internal ...

Page 2

Micrel, Inc. Functional Block Diagram December 2007 2 hbwhelp@micrel.com SY89859U M9999-120607-D or (408) 955-1690 ...

Page 3

Micrel, Inc. (1) Ordering Information Part Number Package Type SY89859UMY QFN-44 (2) SY89859UMYTR QFN-44 Notes: 1. Contact factory for die availability. Dice are guaranteed Tape and Reel. Pin Configuration Truth Table SEL2 ...

Page 4

Micrel, Inc. Pin Description Pin Number Pin Name 20, 18 IN0, /IN0 16, 14 IN1, /IN1 13, 11 IN2, /IN2 9, 7 IN3, /IN3 5, 3 IN4, /IN4 1, 43 IN5, /IN5 42, 40 IN6, /IN6 38, 36 IN7, /IN7 ...

Page 5

Micrel, Inc. Absolute Maximum Ratings Supply Voltage (V ) .......................... –0.5V to +4.0V CC Input Voltage SEL0, SEL1, SEL2 .......................... –0. IN0, /IN0, IN1, /IN1,…/IN7, /IN7 ...... –0. LVPECL Output Current (I ) OUT Continuous ................................................ ...

Page 6

Micrel, Inc. 100K LVPECL Output DC Electrical Characteristics V = +2.5V ±5% or 3.3V ±10 Symbol Parameter V Output HIGH Voltage OH (Q, /Q) V Output LOW Voltage OL (Q, /Q) V Output Differential Swing OUT V Differential ...

Page 7

Micrel, Inc. AC Electrical Characteristics V = +2.5V ±5% or 3.3V ±10 otherwise stated. Symbol Parameter Maximum Operating Frequency f MAX Differential Propagation Delay IN-to SEL-to-Q Differential Propagation Delay t pd Temperature Coefficient Tempco Output-to-Output Skew ...

Page 8

Micrel, Inc. Typical Operating Characteristics V = 3.3V, GND = 100mV (200mVpp December 2007 = 50Ω –2V 25°C, unless otherwise stated hbwhelp@micrel.com SY89859U M9999-120607-D or (408) ...

Page 9

Micrel, Inc. Functional Characteristics V = 3.3V, GND = 100mV (200mVpp December 2007 = 50Ω –2V 25°C, unless otherwise stated hbwhelp@micrel.com SY89859U M9999-120607-D or (408) 955-1690 ...

Page 10

Micrel, Inc. Input and Output Stages Figure 2a. Simplified Differential Input Stage Input Interface Applications Figure 3a. LVPECL Interface (DC-Coupled) Figure 3d. CML Interface (AC-Coupled) December 2007 Figure 2b. Simplified LVPECL Output Stage Figure 3b. LVPECL Interface (AC-Coupled) Figure 3e. ...

Page 11

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

Page 12

Micrel, Inc. Package Information PCB Thermal Consideration for 44-Pin QFN™ Package (Always solder, or equivalent, the exposed pad to the PCB) Package Notes December 2007 44-Pin QFN (QFN-44) Package meets Level 2 qualification. All parts are dry-packaged ...

Page 13

Micrel, Inc. 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. However, no ...

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