SY89202UMG TR Micrel Inc, SY89202UMG TR Datasheet

SY89202UMG TR

Manufacturer Part Number

SY89202UMG TR

Description

IC BUFFER/CLK DIVIDER 1:8 32-MLF

Manufacturer

Micrel Inc

Type

Fanout Buffer (Distribution), Divider, Multiplexerr

Series

Precision Edge®r

Datasheet

1.SY89202UMG.pdf (13 pages)

Specifications of SY89202UMG TR

Number Of Circuits

Ratio - Input:output

1:8

Differential - Input:output

Yes/Yes

Input

CML, LVDS, PECL

Output

LVPECL

Frequency - Max

1.5GHz

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

1.5GHz

Number Of Clock Inputs

Mode Of Operation

Differential

Output Logic Level

LVPECL

Operating Supply Voltage (min)

2.375V

Operating Supply Voltage (typ)

2.5/3.3V

Operating Supply Voltage (max)

3.6V

Package Type

MLF

Operating Temp Range

-40C to 85C

Operating Temperature Classification

Industrial

Signal Type

CML/LVDS/PECL

Mounting

Surface Mount

Pin Count

Lead Free Status / RoHS Status

Lead free / RoHS Compliant

Other names

SY89202UMGTR
SY89202UMGTR

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General Description

The SY89202U is a precision, high-speed, integrated clock

divider LVPECL fanout buffer capable of handling clocks

up to 1.5GHz. Optimized for communications applications,

the three independently controlled output banks are phase

matched and can be configured for pass-through (÷1), ÷2

or ÷4 divide ratios.

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

termination architecture that allows the user to interface to

any AC- or DC-coupled signal as small as 100mV

(200mV

networks in the signal path. The low skew, low jitter

outputs are 800mV, 100k compatible LVPECL, with

extremely fast rise/fall times guaranteed to be less than

220ps.

The EN (enable) input guarantees that the ÷1, ÷2 and ÷4

outputs will start from the same state without any runt

pulse after an asynchronous MR (master reset) is

asserted. This is accomplished by enabling the outputs

after a four-clock delay to allow the counters to

synchronize.

The SY89202U is part of Micrel’s Precision Edge

family.

Datasheets and 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 (

) without any level shifting or termination resistor

product

Features

• Three independently programmable output banks

• Guaranteed AC performance over temp and voltage:

• Ultra-low jitter design:

• Internal input termination

• Patent-pending input termination and VT pin accepts

• 800mV LVPECL output swing

• CMOS/TTL-compatible output enable (EN) and divider

• Power supply 2.5V +5% or 3.3V +10%

• –40

• Available in 32-pin QFN package

Applications

• All SONET/SDH channel select applications

• All Fibre Channel multi-channel select applications

• All Gigabit Ethernet multi-channel select applications

Markets

• LAN/WAN

• Enterprise servers

• ATE

• Test and measurement

408

Three ÷1/÷2/÷4 Clock Divider Output Banks

Precision 1:8 LVPECL Fanout Buffer with

Three low-skew LVPECL output banks with

programmable ÷1, ÷2 and ÷4 divider options

– >1.5GHz clock frequency (f

– <930ps In-to-Out t

– <220ps t

– <1ps

– <10ps

AC- and DC-coupled inputs (CML, PECL, LVDS)

select control

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

C to +85

RMS

total jitter (clock)

random jitter (RJ)

C industrial temperature range

SY89202U

hbwhelp@micrel.com

MAX

)

or (408) 955-1690

Precision Edge

M9999-083107-C

Related parts for SY89202UMG TR

SY89202UMG TR Summary of contents

Page 1

... Datasheets and 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 1:8 LVPECL Fanout Buffer with Three ÷1/÷2/÷4 Clock Divider Output Banks ...

Page 2

Micrel, Inc. Functional Block Diagram August 2007 2 hbwhelp@micrel.com SY89202U M9999-083107-C or (408) 955-1690 ...

Page 3

Micrel, Inc. Ordering Information Part Number SY89202UMG (2) SY89202UMGTR Notes: 1. Contact factory for die availability. Dice are guaranteed Tape and Reel. Pin Configuration August 2007 Package Type Operating Range QFN-32 Industrial QFN-32 Industrial = 25_C, DC ...

Page 4

Micrel, Inc. Pin Description Pin Number Pin Name DIVSEL1 DIVSEL2 DIVSEL3 3, 6 IN, / VREF- 10, 19, 22, 31 VCC 16, 15, 14, Q4, /Q4, Q5, 13, 12, 11 /Q5, Q6, ...

Page 5

Micrel, Inc. Absolute Maximum Ratings Supply Voltage (V ) .......................... –0.5V to +4.0V CC Input Voltage (V ) .................................. –0. Termination Current Source or sink current on V ................... ±100mA T Output Current Source or sink current ...

Page 6

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 7

Micrel, Inc. AC Electrical Characteristics V = 2.5V ±5% or 3.3V ±10 Symbol Parameter Maximum Output Toggle Frequency f MAX Maximum Input Frequency Differential Propagation Delay t PD /MR – Q Propagation Delay t Differential Propagation Delay PD ...

Page 8

Micrel, Inc. Single-Ended and Differential Swings Figure 1a. Single-Ended Voltage Swing Timing Diagrams August 2007 Timing Diagram Showing Reset with Output Enabled 8 Figure 1b. Differential Voltage Swing M9999-083107-C hbwhelp@micrel.com or (408) 955-1690 SY89202U ...

Page 9

Micrel, Inc. August 2007 Timing Diagram Showing Enable Timing Timing Diagram Showing Disable Timing 9 SY89202U M9999-083107-C hbwhelp@micrel.com or (408) 955-1690 ...

Page 10

Micrel, Inc. Typical Operating Characteristics Functional Characteristics August 2007 10 hbwhelp@micrel.com SY89202U M9999-083107-C or (408) 955-1690 ...

Page 11

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) August 2007 Figure 2b. Simplified LVPECL Output Stage Figure 3b. LVPECL Interface (AC-Coupled) Figure 3e. ...

Page 12

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 50Ω- and 100Ω-controllled impedance transmission lines. There are ...

Page 13

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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