link to page 1 link to page 1 link to page 1 link to page 1 link to page 1 link to page 3 link to page 4 link to page 4 link to page 5 link to page 5 link to page 6 link to page 7 link to page 8 link to page 8 link to page 8 link to page 9 link to page 10 link to page 14 link to page 15 link to page 15 link to page 17 link to page 19 link to page 20 link to page 22 link to page 22 link to page 24 link to page 24 link to page 25 link to page 26 link to page 26 link to page 28 link to page 28 AD9261TABLE OF CONTENTS Features .. 1 Typical Performance Characteristics ..9 Applications ... 1 Equivalent Circuits ... 13 Functional Block Diagram .. 1 Theory of Operation .. 14 General Description ... 1 Analog Input Considerations ... 14 Product Highlights ... 1 Clock Input Considerations .. 16 Revision History ... 2 Power Dissipation and Standby Mode .. 18 Specifications ... 3 Digital Engine ... 19 DC Specifications ... 3 Digital Outputs ... 21 AC Specifications .. 4 Timing ... 21 Digital Decimation Filtering Characteristics .. 4 Serial Port Interface (SPI) .. 23 Digital Specifications ... 5 Configuration Using the SPI ... 23 Switching Specifications .. 6 Hardware Interface ... 24 Absolute Maximum Ratings .. 7 Memory Map .. 25 Thermal Resistance .. 7 Memory Map Definitions ... 25 ESD Caution .. 7 Outline Dimensions ... 27 Pin Configuration and Function Descriptions ... 8 Ordering Guide .. 27 REVISION HISTORY4/10—Revision 0: Initial Version Rev. 0 | Page 2 of 28 Document Outline Features Applications Functional Block Diagram General Description Product Highlights Revision History Specifications DC Specifications AC Specifications Digital Decimation Filtering Characteristics Digital Specifications Switching Specifications Timing Diagram Absolute Maximum Ratings Thermal Resistance ESD Caution Pin Configuration and Function Descriptions Typical Performance Characteristics Equivalent Circuits Theory of Operation Analog Input Considerations Input Common Mode Differential Input Configurations Voltage Reference Internal Reference Connection External Reference Operation Clock Input Considerations Direct Clocking Internal PLL Clock Distribution External PLL Control PLL Autoband Select Jitter Considerations Power Dissipation and Standby Mode Digital Engine Bandwidth Selection Decimation Filters Sample Rate Converter Cascaded Filter Responses Digital Outputs Digital Output Format Overrange (OR) Condition Timing Serial Port Interface (SPI) Configuration Using the SPI Hardware Interface Memory Map Memory Map Definitions Outline Dimensions Ordering Guide