
AD9864
TABLE OF CONTENTS
General Description.........................................................................3
AD9864 Specifications.....................................................................4
Digital Specifications........................................................................6
Absolute Maximum Ratings............................................................7
Thermal Resistance......................................................................7
Pin Configuration and Functional Descriptions..........................8
Definition of Specifications/Test Methods ...............................9
Typical Performance Characteristics...........................................10
Serial Peripheral Interface (SPI)...............................................15
Theory of Operation......................................................................17
Serial Port Interface (SPI)..........................................................17
Synchronous Serial Interface (SSI)...........................................18
Syncronization Using SYNCB ..................................................22
Interfacing to DSPs.....................................................................22
Power Control.............................................................................23
LO Synthesizer............................................................................23
Fast Acquire Mode......................................................................24
Clock Synthesizer.......................................................................24
IF LNA/Mixer............................................................................. 26
Band-Pass ∑- ADC.................................................................. 27
Decimation Filter ....................................................................... 29
Variable Gain Amplifier Operation With Automatic Gain
Control......................................................................................... 30
Variable Gain Control................................................................ 31
Automatic Gain Control (AGC)............................................... 32
System Noise Figure (NF) Versus VGA (or AGC) Control.. 34
Applications Considerations..................................................... 35
Spurious Responses.................................................................... 37
External Passive Component Requirements .......................... 37
Applications ................................................................................ 38
Layout Example, Evaluation Board, and Software................. 42
Outline Dimensions....................................................................... 43
ESD Caution................................................................................ 43
Ordering Guide .......................................................................... 43
REVISION HISTORY
Revision 0: Initial Version
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