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AD9834 Datasheet(PDF) 2 Page - Analog Devices |
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AD9834 Datasheet(HTML) 2 Page - Analog Devices |
2 / 32 page AD9834 Rev. B | Page 2 of 32 TABLE OF CONTENTS Features .............................................................................................. 1 Applications....................................................................................... 1 General Description ......................................................................... 1 Functional Block Diagram .............................................................. 1 Revision History ............................................................................... 2 Specifications..................................................................................... 3 Timing Characteristics ................................................................ 5 Absolute Maximum Ratings............................................................ 6 ESD Caution.................................................................................. 6 Pin Configuration and Function Descriptions............................. 7 Typical Performance Characteristics ............................................. 9 Terminology .................................................................................... 13 Theory of Operation ...................................................................... 14 Circuit Description......................................................................... 15 Numerically Controlled Oscillator Plus Phase Modulator ... 15 SIN ROM ..................................................................................... 15 Digital-to-Analog Converter .................................................... 15 Comparator ................................................................................. 15 Regulator...................................................................................... 16 Functional Description .................................................................. 17 Serial Interface ............................................................................ 17 Powering Up the AD9834 ......................................................... 17 Latency......................................................................................... 17 Control Register ......................................................................... 17 Frequency and Phase Registers ................................................ 19 Writing to a Frequency Register............................................... 20 Writing to a Phase Register....................................................... 20 RESET Function ......................................................................... 20 SLEEP Function.......................................................................... 20 Sign Bit Out Pin.......................................................................... 21 The IOUT and IOUTB Pins...................................................... 21 Applications..................................................................................... 22 Grounding and Layout .................................................................. 25 Interfacing to Microprocessors..................................................... 26 AD9834 to ADSP-21xx Interface ............................................. 26 AD9834 to 68HC11/68L11 Interface....................................... 26 AD9834 to 80C51/80L51 Interface .......................................... 27 AD9834 to DSP56002 Interface ............................................... 27 Evaluation Board ............................................................................ 28 Using the AD9834 Evaluation Board....................................... 28 Prototyping Area ........................................................................ 28 XO vs. External Clock................................................................ 28 Power Supply............................................................................... 28 Bill of Materials........................................................................... 30 Outline Dimensions ....................................................................... 31 Ordering Guide .......................................................................... 31 REVISION HISTORY 4/10—Rev. A to Rev. B Changes to Comparator Section................................................... 15 Added Figure 28.............................................................................. 16 Changes to Serial Interface Section.............................................. 17 8/06—Rev. 0 to Rev. A Updated Format..................................................................Universal Changed to 75 MHz Complete DDS................................Universal Changes to Features Section............................................................ 1 Changes to Table 1............................................................................ 4 Changes to Table 2............................................................................ 6 Changes to Table 3............................................................................ 8 Added Figure 10, Figures Renumbered Sequentially ...................9 Added Figure 16 and Figure 17, Figures Renumbered Sequentially ..................................................................................... 10 Changes to Table 6.......................................................................... 19 Changes to Writing a Frequency Register Section..................... 20 Changes to Figure 29...................................................................... 21 Changes to Table 19 ....................................................................... 30 Changes to Figure 38...................................................................... 28 2/03—Revision 0: Initial Version |
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Similar Description - AD9834_10 |
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