AD9864 Analog Devices, AD9864 Datasheet - Page 2

• Manufacturer Part Number: AD9864
• Description: IF Digitizing Subsystem
• Manufacturer: Analog Devices

Specifications of AD9864

• Resolution (bits): 24bit
• # Chan: 1
• Sample Rate: 18MSPS
• Interface: Ser,SPI
• Analog Input Type: Diff-Uni,SE-Uni
• Adc Architecture: Sigma-Delta
• Pkg Type: CSP

AD9864
TABLE OF CONTENTS
General Description ......................................................................... 3
AD9864 Specifications..................................................................... 4
Digital Specifications........................................................................ 6
Absolute Maximum Ratings............................................................ 7
Pin Configuration and Functional Descriptions.......................... 8
Typical Performance Characteristics ........................................... 10
Theory of Operation ...................................................................... 17
REVISION HISTORY
Revision 0: Initial Version
Thermal Resistance ...................................................................... 7
Definition of Specifications/Test Methods ............................... 9
Serial Peripheral Interface (SPI) ............................................... 15
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
Rev. 0 | Page 2 of 44
Outline Dimensions ....................................................................... 43
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
ESD Caution................................................................................ 43
Ordering Guide .......................................................................... 43