1.5 GHz to 2.4 GHz RF Vector Modulator Data Sheet AD8341 FEATURES FUNCTIONAL BLOCK DIAGRAM VPRF QBBP QBBM VPS2 Cartesian amplitude and phase modulation 1.5 GHz to 2.4 GHz frequency range 90 Continuous magnitude control of 4.5 dB to 34.5 dB RFOP Continuous phase control of 0 to 360 RFIP RFIM Output third-order intercept 17.5 dBm RFOM Output 1 dB compression point 8.5 dBm 0 Output noise floor 150.5 dBm/Hz at full gain Adjustable modulation bandwidth up to 230 MHz CMOP IBBP IBBM DSOP Fast output power disable Figure 1. 4.75 V to 5.25 V single-supply voltage APPLICATIONS RF PA linearization/RF predistortion Amplitude and phase modulation Variable attenuators and phase shifters CDMA2000, WCDMA, GSM/EDGE linear power amplifiers Smart antennas GENERAL DESCRIPTION The AD8341 vector modulator performs arbitrary amplitude bandwidth is 230 MHz, which can be reduced by adding external and phase modulation of an RF signal. Because the RF signal capacitors to limit the noise bandwidth on the control lines. path is linear, the original modulation is preserved. This part can Both the RF inputs and outputs can be used differentially or be used as a general-purpose RF modulator, a variable attenuator/ single-ended and must be ac-coupled. The RF input and output phase shifter, or a remodulator. The amplitude can be controlled impedances are nominally 50 over the operating frequency from a maximum of 4.5 dB to less than 34.5 dB, and the phase range. The DSOP pin allows the output stage to be disabled can be shifted continuously over the entire 360 range. For max- quickly in order to protect subsequent stages from overdrive. imum gain, the AD8341 delivers an OP1dB of 8.5 dBm, an OIP3 The AD8341 operates off supply voltages from 4.75 V to 5.25 V of 17.5 dBm, and an output noise floor of 150.5 dBm/Hz, while consuming approximately 125 mA. independent of phase. It operates over a frequency range of The AD8341 is fabricated on Analog Devices proprietary, high 1.5 GHz to 2.4 GHz. performance 25 GHz SOI complementary bipolar IC process. It The baseband inputs in Cartesian I and Q format control the is available in a 24-lead, lead-free LFCSP package and operates amplitude and phase modulation imposed on the RF input over a 40C to +85C temperature range. Evaluation boards signal. Both I and Q inputs are dc-coupled with a 500 mV are available. differential full-scale range. The maximum modulation Rev. B 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 20042017 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. 04700-001AD8341* PRODUCT PAGE QUICK LINKS Last Content Update: 09/27/2017 COMPARABLE PARTS DESIGN RESOURCES View a parametric search of comparable parts. AD8341 Material Declaration PCN-PDN Information EVALUATION KITS Quality And Reliability AD8341 Evaluation Board Symbols and Footprints DOCUMENTATION DISCUSSIONS Application Notes View all AD8341 EngineerZone Discussions. AN-924: Digital Quadrature Modulator Gain Data Sheet SAMPLE AND BUY AD8341: 1.5 GHz to 2.4 GHz RF Vector Modulator Data Visit the product page to see pricing options. Sheet TECHNICAL SUPPORT TOOLS AND SIMULATIONS Submit a technical question or find your regional support ADIsimPLL number. ADIsimRF DOCUMENT FEEDBACK REFERENCE MATERIALS Submit feedback for this data sheet. Product Selection Guide RF Source Booklet This page is dynamically generated by Analog Devices, Inc., and inserted into this data sheet. A dynamic change to the content on this page will not trigger a change to either the revision number or the content of the product data sheet. This dynamic page may be frequently modified.