AD9518-2 Analog Devices, Inc., AD9518-2 Datasheet

AD9518-2

Manufacturer Part Number

AD9518-2

Description

6-output Clock Generator With Integrated 2.2 Ghz Vco

Manufacturer

Analog Devices, Inc.

Datasheet

1.AD9518-2.pdf (64 pages)

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Company:

H&T Electronics

Part Number:

AD9518-2ABCPZ-RL7

Quantity:

750

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FEATURES

Low phase noise, phase-locked loop

3 pairs of 1.6 GHz LVPECL outputs

Automatic synchronization of all outputs on power-up

Manual synchronization of outputs as needed

Serial control port

48-lead LFCSP

APPLICATIONS

Low jitter, low phase noise clock distribution

Clocking high speed ADCs, DACs, DDSs, DDCs, DUCs, MxFEs

High performance wireless transceivers

High performance instrumentation

Broadband infrastructure

ATE

GENERAL DESCRIPTION

The AD9518-2

function with subpicosecond jitter performance, along with an

on-chip PLL and VCO. The on-chip VCO tunes from 2.05 GHz

to 2.33 GHz. Optionally, an external VCO/VCXO of up to

2.4 GHz may be used.

The AD9518-2 emphasizes low jitter and phase noise to

maximize data converter performance, and can benefit other

applications with demanding phase noise and jitter requirements.

Rev. 0

Information furnished by Analog Devices is believed to be accurate and reliable. However, no

responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other

rights of third parties that may result from its use. Specifications subject to change without notice. No

license is granted by implication or otherwise under any patent or patent rights of Analog Devices.

Trademarks and registered trademarks are the property of their respective owners.

On-chip VCO tunes from 2.05 GHz to 2.33 GHz

External VCO/VCXO to 2.4 GHz optional

1 differential or 2 single-ended reference inputs

Reference monitoring capability

Auto and manual reference switchover/holdover modes

Autorecover from holdover

Accepts references to 250 MHz

Programmable delays in path to PFD

Digital or analog lock detect, selectable

Each pair shares 1 to 32 dividers with coarse phase delay

Additive output jitter 225 fs rms

Channel-to-channel skew paired outputs <10 ps

provides a multi-output clock distribution

6-Output Clock Generator with

One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.

Tel: 781.329.4700

Fax: 781.461.3113

The AD9518-2 features six LVPECL outputs (in three pairs).

The LVPECL outputs operate to 1.6 GHz.

Each pair of outputs has dividers that allow both the divide

ratio and coarse delay (or phase) to be set. The range of division

for the LVPECL outputs is 1 to 32.

The AD9518-2 is available in a 48-lead LFCSP and can be

operated from a single 3.3 V supply. An external VCO, which

requires an extended voltage range, can be accommodated

by connecting the charge pump supply (VCP) to 5.5 V. A

separate LVPECL power supply can be from 2.375 V to 3.6 V.

The AD9518-2 is specified for operation over the industrial

range of −40°C to +85°C.

AD9518 is used throughout to refer to all the members of the AD9518

family. However, when AD9518-2 is used, it is referring to that specific

member of the AD9518 family.

REFIN

CLK

FUNCTIONAL BLOCK DIAGRAM

SERIAL CONTROL PORT

Integrated 2.2 GHz VCO

REF1

REF2

DIGITAL LOGIC

AND

AND MUXs

DIVIDER

DIV/Φ

Figure 1.

LVPECL

VCO

AD9518-2

MONITOR

STATUS

www.analog.com

OUT0

OUT1

OUT2

OUT3

OUT4

OUT5

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