AD9772A-EB datasheet(2/40 Pages) AD

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AD9772A

Rev. C | Page 2 of 40

TABLE OF CONTENTS

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

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

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

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

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

Product Highlights ........................................................................... 3

Specifications..................................................................................... 4

DC Specifications ......................................................................... 4

Dynamic Specifications ............................................................... 6

Digital Specifications ................................................................... 7

Digital Filter Specifications ......................................................... 8

Absolute Maximum Ratings............................................................ 9

Thermal Characteristics .............................................................. 9

ESD Caution.................................................................................. 9

Pin Configuration and Function Descriptions........................... 10

Terminology .................................................................................... 12

Typical Performance Characteristics ........................................... 14

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

Functional Description.............................................................. 17

Digital Modes of Operation ...................................................... 17

PLL Clock Multiplier Operation .............................................. 19

Synchronization of Clock/Data

Using Reset with PLL Disabled................................................. 21

DAC Operation........................................................................... 22

DAC Transfer Function ............................................................. 22

Reference Operation .................................................................. 22

Reference Control Amplifier .................................................... 23

Analog Outputs .......................................................................... 23

Digital Inputs/Outputs .............................................................. 24

Sleep Mode Operation............................................................... 25

Power Dissipation....................................................................... 25

Applying the AD9772A ................................................................. 26

Output Configurations .............................................................. 26

Differential Coupling Using a Transformer ............................... 26

Differential Coupling Using an Op Amp................................ 26

Single-Ended, Unbuffered Voltage Output............................. 26

Single-Ended, Buffered Voltage Output.................................. 27

Power and Grounding Considerations.................................... 27

Applications Information .............................................................. 29

Multicarrier ................................................................................. 29

Baseband Single-Carrier Applications .................................... 30

Direct IF....................................................................................... 30

AD9772A Evaluation Board ......................................................... 32

Schematics................................................................................... 33

Evaluation Board Layout........................................................... 35

Outline Dimensions ....................................................................... 38

Ordering Guide .......................................................................... 38

REVISION HISTORY

2/08—Rev. B to Rev. C

Changes to DVDD Parameter......................................................... 4

Changes to PLL Clock Enabled Parameter ................................... 7

Changes to PLL Clock Disabled Parameter .................................. 7

Changes to Table 8.......................................................................... 10

Changes to Functional Description ............................................. 17

Change to Power Dissipation Section.......................................... 25

Changes to Power and Grounding Considerations Section ..... 27

Change to Figure 53 ....................................................................... 29

Change to Direct IF Section.......................................................... 30

Changes to Figure 61...................................................................... 34

Updated Outline Dimensions ....................................................... 38

Changes to Ordering Guide .......................................................... 38

6/03—Rev. A to Rev. B

Change to Features .......................................................................... 1

Change to DC Specifications .......................................................... 2

Change to Digital Filter Specifications ...........................................5

Ordering Guide Updated .................................................................6

Change to Pin Function Descriptions ............................................7

Change to Figure 13a and Figure 13b .......................................... 15

Change to Digital Inputs/Outputs................................................ 18

Change to Sleep Mode Operation ................................................ 19

Change to Figure 22 ....................................................................... 19

Change to Figure 23 ....................................................................... 19

Change to Power and Ground Considerations .......................... 21

Change to Figure 29 ....................................................................... 21

Update to Outline Dimensions..................................................... 30

3/02—Rev. 0 to Rev. A

Edits to Digital Specifications..........................................................4

Edits to Absolute Maximum Ratings ..............................................6

Change to TPC 11 .......................................................................... 10

Change to Figure 9 Caption .......................................................... 14

Change to Figure 13a and Figure 13b .......................................... 15

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