AD9949

Rev. B | Page 2 of 36

TABLE OF CONTENTS

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

General Specifications ................................................................. 3

Digital Specifications ................................................................... 3

Analog Specifications................................................................... 4

Timing Specifications .................................................................. 5

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

Thermal Characteristics .............................................................. 6

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

Pin Configuration and Function Descriptions............................. 7

Terminology ...................................................................................... 8

Equivalent Input/Output Circuits .................................................. 9

Typical Performance Characteristics ........................................... 10

System Overview ............................................................................ 11

H-Counter Behavior .................................................................. 11

Serial Interface Timing .................................................................. 12

Complete Register Listing ............................................................. 13

Precision Timing High Speed Timing Generation...................... 18

Timing Resolution...................................................................... 18

High Speed Clock Programmability ........................................ 18

H-Driver and RG Outputs ........................................................ 19

Digital Data Outputs.................................................................. 19

Horizontal Clamping and Blanking ............................................. 21

Individual CLPOB and PBLK Sequences................................ 21

Individual HBLK Sequences..................................................... 21

Generating Special HBLK Patterns .............................................. 23

Horizontal Sequence Control ................................................... 23

External HBLK Signal................................................................ 23

H-Counter Synchronization ..................................................... 24

Power-Up Procedure...................................................................... 25

Recommended Power-Up Sequence ....................................... 25

Analog Front End Description and Operation .......................... 26

DC Restore .................................................................................. 26

Correlated Double Sampler ...................................................... 26

PxGA............................................................................................ 26

Variable Gain Amplifier ............................................................ 29

ADC ............................................................................................. 29

Optical Black Clamp .................................................................. 29

Digital Data Outputs.................................................................. 29

Applications Information .............................................................. 30

Circuit Configuration ................................................................ 30

Grounding and Decoupling Recommendations.................... 30

Driving the CLI Input................................................................ 31

Horizontal Timing Sequence Example.................................... 31

Outline Dimensions ....................................................................... 34

Ordering Guide .......................................................................... 34

REVISION HISTORY

1

1/04—Data Sheet Changed from Rev. A to Rev. B

Changes to Ordering Guide .......................................................... 35

9/04—Data Sheet Changed from Rev. 0 to Rev. A

Changes to Features.......................................................................... 1

Changes to Analog Specifications .................................................. 4

Changes to Terminology Section.................................................... 9

Added H-Counter Behavior Section............................................ 12

Changes to Table 7.......................................................................... 14

Changes to Table 12 ....................................................................... 17

Changes to Table 15 ....................................................................... 17

Changes to H-Counter Sync Section ........................................... 24

Changes to Recommended Power-Up Sequence Section ......... 25

Changes to Ordering Guide .......................................................... 35

5/03—Revision 0: Initial Version