1500 MHz to 2500 MHz Quadrature Modulator Data Sheet ADL5372 FEATURES FUNCTIONAL BLOCK DIAGRAM Output frequency range: 1500 MHz to 2500 MHz IBBP Modulation bandwidth: >500 MHz (3 dB) IBBN 1 dB output compression: 14 dBm at 1900 MHz Noise floor: 158 dBm/Hz Sideband suppression: 45 dBc at 1900 MHz LOIP QUADRATURE PHASE VOUT Carrier feedthrough: 45 dBm at 1900 MHz SPLITTER LOIN Single supply: 4.75 V to 5.25 V 24-lead LFCSP QBBN APPLICATIONS QBBP Cellular communication systems CDMA2000/GSM/WCDMA Figure 1. WiMAX/broadband wireless access systems Satellite modems GENERAL DESCRIPTION The ADL5372 is a member of the fixed-gain quadrature modulator The ADL5372 accepts two differential baseband inputs and a (F-MOD) family designed for use from 1500 MHz to 2500 MHz. single-ended, local oscillator (LO) and generates a single- Its excellent phase accuracy and amplitude balance enable high ended output. performance intermediate frequency or direct radio frequency The ADL5372 is fabricated using the Analog Devices, Inc., modulation for communication systems. advanced silicon-germanium bipolar process. It is available in The ADL5372 provides a >500 MHz, 3 dB baseband bandwidth, a 24-lead, exposed-paddle, RoHS compliant, LFCSP. Performance making it ideally suited for use in broadband zero IF or low is specified over a 40C to +85C temperature range. A RoHS IF-to-RF applications and in broadband digital predistortion compliant evaluation board is available. transmitters. Rev. A Document Feedback 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 One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A. rights of third parties that may result from its use. Specifications subject to change without notice. No Tel: 781.329.4700 20062016 Analog Devices, Inc. All rights reserved. license is granted by implication or otherwise under any patent or patent rights of Analog Devices. Technical Support www.analog.com Trademarks and registered trademarks are the property of their respective owners. 06511-001ADL5372 Data Sheet TABLE OF CONTENTS Features .............................................................................................. 1 DAC Modulator Interfacing ..................................................... 14 Applications ....................................................................................... 1 Limiting the AC Swing .............................................................. 14 Functional Block Diagram .............................................................. 1 Fi lter ing ........................................................................................ 14 General Description ......................................................................... 1 Using the AD9779 Auxiliary DAC for Carrier Feedthrough Nulling ......................................................................................... 15 Revision History ............................................................................... 2 GSM Operation .......................................................................... 15 Specif icat ions ..................................................................................... 3 WCDMA Operation .................................................................. 16 Absolute Maximum Ratings ............................................................ 5 WiMAX Operation .................................................................... 16 ESD Caution .................................................................................. 5 LO Generation Using PLLs ....................................................... 16 Pin Configuration and Function Descriptions ............................. 6 Transmit DAC Options ............................................................. 17 Typical Performance Characteristics ............................................. 7 Modulator/Demodulator Options ........................................... 17 Theory of Operation ...................................................................... 11 Evaluation Board ............................................................................ 18 Circuit Description..................................................................... 11 Characterization Setup .................................................................. 19 Basic Connections .......................................................................... 12 Outline Dimensions ....................................................................... 21 Optimization ............................................................................... 13 Ordering Guide .......................................................................... 21 Applications Information .............................................................. 14 REVISION HISTORY 5/2016Rev. 0 to Rev. A Changed CP-24-2 to CP-24-14 .................................... Throughout Changes to Figure 2 and Table 3 ..................................................... 6 Changes to Figure 25 ...................................................................... 12 Change to Table 5 ........................................................................... 16 Changes to Table 7 .......................................................................... 17 Changes to Figure 39 ...................................................................... 18 Updated Outline Dimensions ...................................................... 21 Changes to Ordering Guide .......................................................... 21 12/2006Revision 0: Initial Version Rev. A Page 2 of 24