30 MHz to 2200 MHz Quadrature Modulator Data Sheet ADL5385 FEATURES FUNCTIONAL BLOCK DIAGRAM ENBL Output frequency range: 30 MHz to 2200 MHz 1 dB output compression: 11 dBm at 350 MHz BIAS Noise floor: 159 dBm/Hz at 350 MHz TEMPERATURE TEMP SENSOR IBBP Sideband suppression: 50 dBc at 350 MHz Carrier feedthrough: 46 dBm at 350 MHz Single supply: 4.75 V to 5.5 V IBBN 24-lead, RoHS-compliant, LFCSP with exposed pad APPLICATIONS LOIP Radio-link infrastructure DIVIDE-BY-2 Cable modem termination systems VOUT QUADRATURE PHASE UHF/VHF radio SPLITTER LOIN Wireless infrastructure systems Wireless local loop WiMAX/broadband wireless access systems QBBP QBBN Figure 1. GENERAL DESCRIPTION The ADL5385 is a silicon, monolithic, quadrature modulator The ADL5385 can be used as either an IF or a direct-to-RF designed for use from 30 MHz to 2200 MHz. Its excellent phase modulator in digital communication systems. The wide accuracy and amplitude balance enable both high performance baseband input bandwidth allows for either baseband drive or intermediate frequency (IF) and direct radio frequency (RF) drive from a complex IF. Typical applications are in radio-link modulation for communication systems. transmitters, cable modem termination systems, and broadband wireless access systems. The ADL5385 takes the signals from two differential baseband inputs and modulates them onto two carriers in quadrature The ADL5385 is fabricated using the Analog Devices, Inc., advanced silicon germanium bipolar process and is packaged in with each other. The two internal carriers are derived from a single-ended, external local oscillator input signal at twice the a 24-lead, RoHS-compliant LFCSP with exposed pad. Performance frequency as the desired carrier output. The two modulated is specified over 40C to +85C. A RoHS-compliant evaluation signals are summed together in a differential-to-single-ended board is also available. amplifier designed to drive 50 loads. Rev. D 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. 06118-001ADL5385 Data Sheet TABLE OF CONTENTS Features .............................................................................................. 1 Baseband Inputs ......................................................................... 15 Applications ....................................................................................... 1 LO Input ...................................................................................... 15 Functional Block Diagram .............................................................. 1 RF Output .................................................................................... 15 General Description ......................................................................... 1 Optimization ............................................................................... 16 Revision History ............................................................................... 2 Applications Information .............................................................. 17 Specifications ..................................................................................... 3 DAC Modulator Interfacing ..................................................... 17 Absolute Maximum Ratings ............................................................ 7 155 Mbps (STM-1) 128 QAM Transmitter ............................. 18 ESD Caution .................................................................................. 7 CMTS Transmitter Application ................................................ 18 Pin Configuration and Function Descriptions ............................. 8 Spectral Products from Harmonic Mixing ............................. 19 Typical Performance Characteristics ............................................. 9 RF Second-Order Products ....................................................... 19 Circuit Description ......................................................................... 14 LO Generation Using PLLs ....................................................... 20 Overview ...................................................................................... 14 Transmit DAC Options ............................................................. 20 LO Interface................................................................................. 14 Modulator/Demodulator Options ........................................... 20 V-to-I Converter ......................................................................... 14 Evaluation Board ............................................................................ 21 Mixers .......................................................................................... 14 Characterization Setup .................................................................. 23 SSB Setup ..................................................................................... 23 D-to-S Amplifier ......................................................................... 14 Bias Circuit .................................................................................. 14 Outline Dimensions ....................................................................... 24 Basic Connections .......................................................................... 15 Ordering Guide .......................................................................... 24 Power Supply and Grounding ................................................... 15 REVISION HISTORY 12/2016Rev. C to Rev. D Added Figure 47 ............................................................................. 24 Changes to Evaluation Board Section .......................................... 21 Changes to Ordering Guide .......................................................... 26 Deleted Figure 46 and Table 9 Renumbered Sequentially ....... 23 Deleted Figure 47 ............................................................................ 24 10/2012Rev. 0 to Rev. A Changes to Ordering Guide .......................................................... 24 Added 30 MHz Output Frequency ............................. Throughout Changes to Applications Section ..................................................... 1 Changes to Table 1 ............................................................................. 3 3/2016Rev. B to Rev. C Changes to Figure 2 .......................................................................... 8 Added EPAD Notation to Figure 2 and Table 3 ............................ 8 Changes to Figure 29 ...................................................................... 15 Added Figure 8 Renumbered Sequentially ................................... 9 Changes to LO Generation Using PLLs Section and Table 7 .... 20 Added Figure 9 ................................................................................ 10 Changes to Figure 43 ...................................................................... 21 Changes to Figure 17 ...................................................................... 11 Changes to Figure 46 ...................................................................... 23 Changes to Figure 21 ...................................................................... 12 Updated Outline Dimensions ....................................................... 26 Changes to LO Input Section and RF Output Section .............. 15 Changes to Ordering Guide .......................................................... 26 Changes to LO Generation Using PLLs Section and Transmit DAC Options Section .................................................................... 20 12/2014Rev. A to Rev. B Updated Outline Dimensions ....................................................... 24 Changes to Output Voltage Parameter, Test Conditions/Comments Changes to Ordering Guide .......................................................... 24 Column, Table 1 ................................................................................ 6 Changes to D-to-S Amplifier Section .......................................... 14 10/2006Revision 0: Initial Version Changes to Evaluation Board Section, Figure 43, and Table 8 ........ 21 Changes to Figure 44 ...................................................................... 22 Added Figure 45 Renumbered Sequentially .............................. 22 Added Figure 46 and Table 9......................................................... 23 Rev. D Page 2 of 24