AD9864 datasheet(3/48 Pages) AD

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AD9864

Data Sheet

Rev. A | Page 2 of 47

TABLE OF CONTENTS

Features .............................................................................................. 1

Applications....................................................................................... 1

General Description ......................................................................... 1

Functional Block Diagram .............................................................. 1

Revision History ............................................................................... 2

Specifications..................................................................................... 3

Digital Specifications ................................................................... 5

Absolute Maximum Ratings............................................................ 6

Thermal Resistance ...................................................................... 6

ESD Caution.................................................................................. 6

Pin Configuration and Functional Descriptions.......................... 7

Typical Performance Characteristics ............................................. 9

Terminology .................................................................................... 14

Serial Peripheral Interface (SPI) ................................................... 15

Theory of Operation ...................................................................... 17

Introduction ................................................................................ 17

Serial Port Interface (SPI).......................................................... 18

Power-On Reset .......................................................................... 19

Synchronous Serial Interface (SSI)........................................... 19

SSI Control Registers ................................................................. 21

Synchronization Using SYNCB ................................................ 24

Interfacing to DSPs .................................................................... 24

Power Control............................................................................. 24

LO Synthesizer............................................................................ 25

Clock Synthesizer ....................................................................... 26

IF LNA/Mixer ............................................................................. 28

Band-Pass Σ-Δ ADC .................................................................. 29

Decimation Filter ....................................................................... 32

Variable Gain Amplifier Operation with Automatic

Gain Control ............................................................................... 33

Applications Considerations..................................................... 38

External Passive Component Requirements .......................... 40

Applications ................................................................................ 40

Layout Example, Evaluation Board, and Software................. 45

SPI Initialization Example......................................................... 45

Device SPI Initialization............................................................ 46

Outline Dimensions ....................................................................... 47

Ordering Guide .......................................................................... 47

REVISION HISTORY

2/16—Rev. 0 to Rev. A

Changes to Figure 2.......................................................................... 7

Changes to Typical Performance Characteristics Section........... 9

Changes to Figure 19...................................................................... 11

Changes to Table 6.......................................................................... 16

Changed General Description Section to Introduction Section ... 17

Changes to Serial Port Interface (SPI) Section ........................... 18

Added Figure 31; Renumbered Sequentially .............................. 19

Added Power-On Reset Section ................................................... 19

Deleted Table 9; Renumbered Sequentially ................................ 19

Added SSI Control Registers Section and Table 8 to Table 13 .... 21

Changes to Synchronization Using SYNCB Section and

Figure 38 .......................................................................................... 24

Changes to Clock Synthesizer Section......................................... 26

Changes to Band-Pass Σ-Δ ADC Section and Table 20 ............ 30

Changes to Table 21 ....................................................................... 31

Changes to Variable Gain Control Section ................................. 34

Deleted Table 17 ............................................................................. 34

Added Figure 64 ............................................................................. 36

Changes to Figure 72...................................................................... 40

Changes to Layout Example, Evaluation Board, and

Software Section ............................................................................. 45

Added Figure 77 and SPI Initialization Example Section......... 45

Added Device SPI Initialization Section and Table 24 .............. 46

Updated Outline Dimensions....................................................... 47

Changes to Ordering Guide .......................................................... 47

8/03—Revision 0: Initial Version

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