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ADL5370-EVALZ

300 MHz to 1000 MHz Quadrature Modulator

Analog Devices 

FEATURES

Output frequency range: 300 MHz to 1000 MHz

Modulation bandwidth: >500 MHz (3 dB)

1 dB output compression: 11 dBm @ 450 MHz

Noise floor: −160 dBm/Hz

Sideband suppression: −41 dBc @ 450 MHz

Carrier feedthrough: −50 dBm @ 450 MHz

Single supply: 4.75 V to 5.25 V

24-lead LFCSP_VQ package

APPLICATIONS

Cellular communication systems at 450 MHz

CDMA2000/GSM

WiMAX/broadband wireless access systems

Cable communication equipment

Satellite modems

GENERAL DESCRIPTION

The ADL5370 is the first in the fixed-gain quadrature modulator

(F-MOD) family designed for use from 300 MHz to 1000 MHz.

Its excellent phase accuracy and amplitude balance enable high

performance intermediate frequency or direct radio frequency

modulation for communication systems.

The ADL5370 provides a greater than 500 MHz, 3 dB baseband

bandwidth, making it ideally suited for use in broadband zero

IF or low IF-to-RF applications and in broadband digital

predistortion transmitters.

300 MHz to 1000 MHz

Quadrature Modulator

ADL5370

FUNCTIONAL BLOCK DIAGRAM

IBBP

IBBN

LOIP

LOIN

QUADRATURE

PHASE

SPLITTER

VOUT

QBBN

QBBP

Figure 1.

The ADL5370 accepts two differential baseband inputs and

a single-ended LO and generates a single-ended 50 Ω output.

The ADL5370 is fabricated using the Analog Devices, Inc.

advanced silicon-germanium bipolar process. It is available in

a 24-lead, exposed-paddle, Pb-free, LFCSP_VQ package. Perform-

ance is specified over a −40°C to +85°C temperature range.

A Pb-free evaluation board is available.

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.

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

Tel: 781.329.4700

www.analog.com

Fax: 781.461.3113

©2006 Analog Devices, Inc. All rights reserved.

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