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ADP150 Fiches technique(PDF) 1 Page - Analog Devices |
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ADP150 Fiches technique(HTML) 1 Page - Analog Devices |
1 / 5 page Circuit Note CN-0134 Circuits from the Lab™ tested circuit designs address common design challenges and are engineered for quick and easy system integration. For more information and/or support, visit www.analog.com/CN0134. Devices Connected/Referenced ADF4350 Fractional-N PLL IC with Integrated VCO ADL5375 Wideband Transmit Modulator ADP150 Low Noise 3.3 V LDO ADP3334 Low Noise Adjustable LDO Broadband Low Error Vector Magnitude (EVM) Direct Conversion Transmitter Rev. B Circuitsfromthe Lab™circuitsfromAnalogDeviceshave beendesignedandbuiltbyAnalogDevices engineers. Standard engineering practices have been employed in the design and construction of eachcircuit,andtheirfunctionandperformancehavebeentestedandverifiedinalabenvironmentat room temperature. However, you are solely responsible for testing the circuit and determining its suitabilityandapplicabilityforyouruseandapplication.Accordingly,innoeventshallAnalogDevices be liable for direct, indirect, special, incidental, consequential or punitive damages due to any cause whatsoeverconnectedtotheuseofanyCircuitsfromtheLabcircuits. (Continuedonlastpage) One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A. Tel: 781.329.4700 www.analog.com/circuits Fax: 781.461.3113 ©2010 Analog Devices, Inc. All rights reserved. EVALUATION AND DESIGN SUPPORT Circuit Evaluation Boards CN-0134 Evaluation Board (CFTL-CN0134-EVALZ) Design and Integration Files Schematics, Layout Files, Bill of Materials CIRCUIT FUNCTION AND BENEFITS This circuit is a complete implementation of the analog portion of a broadband direct conversion transmitter (analog baseband in, RF out). RF frequencies from 500 MHz to 4.4 GHz are supported through the use of a PLL with a broadband integrated voltage controlled oscillator (VCO). Harmonic filtering of the LO from the PLL ensures excellent quadrature accuracy. 22nF 10nF 330nF 180Ω 82Ω IBBP IBBN LOIP LOIN QBBP QBBN ADF4350 VVCO VVCO VDD 3.3V CPGND AGND DGND RFOUTB– RFOUTB+ CPOUT 1nF 1nF 4.7kΩ RSET LE DATA CLK REFIN FREFIN VTUNE DVDD AVDD CE 10 28 16 29 1 2 3 22 8 31 9 11 18 21 27 51Ω AGNDVCO 14 15 17 20 7 PDBRF 26 SDGND 6 32 SDVDD VP 5 SW 4 ADL5375 RFOUT RFOUTA– RFOUTA+ 13 12 VVCO ZBIAS ZBIAS QUADRATURE PHASE SPLITTER I/Q SMA INPUTS I/Q SMA INPUTS ADP150 1µF 1µF 5.5V 5.0V VPS1, VPS2 ADP3334 1µF 1µF 5.5V Figure 1. Direct Conversion Transmitter (Simplified Schematic: All Connections and Decoupling Not Shown) |
Numéro de pièce similaire - ADP150 |
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Description similaire - ADP150 |
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