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ADL5385 Datasheet(PDF) 1 Page - Analog Devices |
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ADL5385 Datasheet(HTML) 1 Page - Analog Devices |
1 / 26 page 30 MHz to 2200 MHz Quadrature Modulator Data Sheet ADL5385 FEATURES Output frequency range: 30 MHz to 2200 MHz 1 dB output compression: 11 dBm at 350 MHz Noise floor: –159 dBm/Hz at 350 MHz Sideband suppression: −50 dBc at 350 MHz Carrier feedthrough: −46 dBm at 350 MHz Single supply: 4.75 V to 5.5 V 24-lead, RoHS-compliant, LFCSP_VQ with exposed paddle APPLICATIONS Radio-link infrastructure Cable modem termination systems UHF/VHF radio Wireless infrastructure systems Wireless local loop WiMAX/broadband wireless access systems FUNCTIONAL BLOCK DIAGRAM TEMPERATURE SENSOR BIAS VOUT TEMP ENBL IBBP IBBN QBBP QBBN LOIP LOIN DIVIDE-BY-2 QUADRATURE PHASE SPLITTER Figure 1. GENERAL DESCRIPTION The ADL5385 is a silicon, monolithic, quadrature modulator designed for use from 30 MHz to 2200 MHz. Its excellent phase accuracy and amplitude balance enable both high performance intermediate frequency (IF) and direct radio frequency (RF) modulation for communication systems. The ADL5385 takes the signals from two differential baseband inputs and modulates them onto two carriers in quadrature with each other. The two internal carriers are derived from a single-ended, external local oscillator input signal at twice the frequency as the desired carrier output. The two modulated signals are summed together in a differential-to-single-ended amplifier designed to drive 50 Ω loads. The ADL5385 can be used as either an IF or a direct-to-RF modulator in digital communication systems. The wide baseband input bandwidth allows for either baseband drive or drive from a complex IF. Typical applications are in radio-link transmitters, cable modem termination systems, and broadband wireless access systems. The ADL5385 is fabricated using the Analog Devices, Inc., advanced silicon germanium bipolar process and is packaged in a 24-lead, RoHS-compliant LFCSP_VQ with exposed paddle. Performance is specified over –40°C to +85°C. A RoHS- compliant evaluation board is also available. Rev. B Document Feedback Information furnished by Analog Devices is believed to be accurate and reliable. However, no responsibilityisassumedbyAnalogDevicesforitsuse,norforanyinfringementsofpatentsorother rightsofthirdpartiesthatmayresultfromitsuse.Specificationssubjecttochangewithoutnotice.No license is granted by implication or otherwise under any patent or patent rights of Analog Devices. Trademarksandregisteredtrademarksarethepropertyoftheirrespectiveowners. One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A. Tel: 781.329.4700 ©2006–2014 Analog Devices, Inc. All rights reserved. Technical Support www.analog.com |
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