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AD8349 Arkusz danych(PDF) 2 Page - Analog Devices |
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AD8349 Arkusz danych(HTML) 2 Page - Analog Devices |
2 / 28 page AD8349 Data Sheet Rev. B | Page 2 of 28 TABLE OF CONTENTS Features .............................................................................................. 1 Applications....................................................................................... 1 Functional Block Diagram .............................................................. 1 Product Description......................................................................... 1 Revision History ............................................................................... 2 Specifications..................................................................................... 3 Absolute Maximum Ratings............................................................ 5 ESD Caution.................................................................................. 5 Pin Configuration and Function Descriptions............................. 6 Equivalent Circuits ........................................................................... 7 Typical Performance Characteristics ............................................. 8 Circuit Description......................................................................... 14 Overview...................................................................................... 14 LO Interface................................................................................. 14 V-to-I Converter......................................................................... 14 Mixers .......................................................................................... 14 D-to-S Amplifier......................................................................... 14 Bias Circuit .................................................................................. 14 Output Enable ............................................................................. 14 Basic Connections .......................................................................... 15 Baseband I and Q Inputs ........................................................... 15 Single-Ended Baseband Drive .................................................. 15 LO Input Drive Level ................................................................. 16 Frequency Range ........................................................................ 16 LO Input Impedance Matching ................................................ 16 Single-Ended LO Drive ............................................................. 17 RF Output.................................................................................... 17 Output Enable............................................................................. 17 Baseband DAC Interface ........................................................... 18 AD9777 Interface ....................................................................... 18 Biasing and Filtering .................................................................. 18 Reducing Undesired Sideband Leakage .................................. 19 Reduction of LO Feedthrough.................................................. 19 Sideband Suppression and LO Feedthrough vs. Temperature ................................................................................ 20 Single Sideband Performance vs. Baseband Drive Level ...... 20 Improving Third Harmonic Distortion .................................. 20 Applications..................................................................................... 21 3GPP WCDMA Single-Carrier Application........................... 21 WCDMA MultiCarrier Application ........................................ 21 GSM/EDGE Application ........................................................... 22 Soldering Information ............................................................... 23 LO Generation Using PLLs ....................................................... 23 Transmit DAC Options ............................................................. 23 Evaluation Board ............................................................................ 24 Characterization Setups................................................................. 26 SSB Setup..................................................................................... 26 Outline Dimensions ....................................................................... 27 Ordering Guide .......................................................................... 27 REVISION HISTORY 2/12—Rev. A to Rev. B Added EPAD Note............................................................................ 6 Changes to Ordering Guide .......................................................... 27 11/04—Data Sheet Changed from Rev. 0 to Rev. A Changes to Figure 25 through Figure 30..................................... 11 Changes to Figure 37 through Figure 39..................................... 13 Change to WCDMA MultiCarrier Application section ............ 21 Change to Figure 60 and Figure 61 .............................................. 21 11/03—Revision 0: Initial Version |
Podobny numer części - AD8349_15 |
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Podobny opis - AD8349_15 |
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