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AD6649BCPZ Datasheet(PDF) 2 Page - Analog Devices |
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AD6649BCPZ Datasheet(HTML) 2 Page - Analog Devices |
2 / 40 page AD6649 Rev. 0 | Page 2 of 40 TABLE OF CONTENTS Features .............................................................................................. 1 Applications....................................................................................... 1 General Description ......................................................................... 1 Functional Block Diagram .............................................................. 1 Revision History ............................................................................... 2 Product Highlights ........................................................................... 3 Specifications..................................................................................... 4 ADC DC Specifications................................................................. 4 ADC AC Specifications ................................................................. 5 Digital Specifications ..................................................................... 6 Switching Specifications ................................................................ 8 Timing Specifications .................................................................. 9 Absolute Maximum Ratings.......................................................... 10 Thermal Characteristics ............................................................ 10 ESD Caution................................................................................ 10 Pin Configuration and Function Descriptions........................... 11 Typical Performance Characteristics ........................................... 13 Equivalent Circuits ......................................................................... 16 Theory of Operation ...................................................................... 17 ADC Architecture ...................................................................... 17 Analog Input Considerations.................................................... 17 Voltage Reference ....................................................................... 19 Clock Input Considerations ...................................................... 19 Power Dissipation and Standby Mode..................................... 20 Digital Outputs ........................................................................... 21 Digital Processing ........................................................................... 22 Numerically Controlled Oscillator (NCO) ............................. 22 NCO and FIR Filter Modes....................................................... 22 fS/4 Fixed-Frequency NCO ....................................................... 22 Numerically Controlled Oscillator (NCO) ................................. 23 Frequency Translation ............................................................... 23 NCO Synchronization ............................................................... 23 NCO Amplitude and Phase Dither.......................................... 23 FIR Filters ........................................................................................ 24 FIR Synchronization .................................................................. 24 Filter Performance...................................................................... 24 Output NCO ............................................................................... 25 ADC Overrange and Gain Control.............................................. 26 ADC Overrange (OR)................................................................ 26 Gain Switching............................................................................ 26 DC Correction ................................................................................ 27 Channel/Chip Synchronization.................................................... 28 Serial Port Interface (SPI).............................................................. 29 Configuration Using the SPI..................................................... 29 Hardware Interface..................................................................... 29 SPI Accessible Features.............................................................. 30 Memory Map .................................................................................. 31 Reading the Memory Map Register Table............................... 31 Memory Map Register Table..................................................... 32 Memory Map Register Description ......................................... 36 Applications Information .............................................................. 39 Design Guidelines ...................................................................... 39 Outline Dimensions ....................................................................... 40 Ordering Guide .......................................................................... 40 REVISION HISTORY 4/11—Revision 0: Initial Version |
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