OSCin

OSCin*

R Divider

Phase

Detector

N Divider

CLKout0

CLKout0*

CLKout1

CLKout1*

CLKout2

CLKout2*

CLKout3

CLKout3*

Divider

Delay

Mux

Divider

Delay

Mux

Divider

Delay

Mux

Divider

Delay

Mux

Distribution Path

CLK

DATA

LE

Control

Registers

PWire

Port

Device

Control

LD

GOE

SYNC*

CPout

Clock Buffers

Fin

Fin*

Charge

Pump

LMK02002

www.ti.com

SNAS418 – AUGUST 2007

LMK02002 Precision Clock Conditioner with Integrated PLL

Check for Samples: LMK02002

1

FEATURES

DESCRIPTION

The LMK02002 precision clock conditioner combines

2

•

20 fs Additive Jitter

the

functions

of

jitter

cleaning/reconditioning,

•

Integrated Integer-N PLL with Outstanding

multiplication, and distribution of a reference clock.

Normalized Phase Noise Contribution of -224

The device integrates a high performance Integer-N

dBc/Hz

Phase Locked Loop (PLL), and four LVPECL clock

output distribution blocks.

•

Clock Output Frequency Range of 1 to 800

MHz

Each

clock

distribution

block

includes

a

•

4 LVPECL Clock Outputs

programmable

divider,

a

phase

synchronization

circuit, a programmable delay, a clock output mux,

•

Dedicated Divider and Delay Blocks on Each

and an LVPECL output buffer. This allows multiple

Clock Output

integer-related and phase-adjusted copies of the

•

Pin Compatible Family of Clocking Devices

reference

to

be

distributed

to

eight

system

•

3.15 to 3.45 V Operation

components.

•

Package: 48 Pin WQFN (7.0 x 7.0 x 0.8 mm)

The clock conditioner comes in a 48-pin WQFN

package and is footprint compatible with other

TARGET APPLICATIONS

clocking devices in the same family.

•

Data Converter Clocking

•

Networking, SONET/SDH, DSLAM

•

Wireless Infrastructure

•

Medical

•

Test and Measurement

•

Military / Aerospace

Functional Block Diagram

1

Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of

Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.

2

All trademarks are the property of their respective owners.

PRODUCTION DATA information is current as of publication date.

Copyright © 2007, Texas Instruments Incorporated

Products conform to specifications per the terms of the Texas

Instruments standard warranty. Production processing does not

necessarily include testing of all parameters.