Datasheet

AD9974
Rev. A | Page 2 of 52
TABLE OF CONTENTS
Features .............................................................................................. 1
Applications ....................................................................................... 1
General Description ......................................................................... 1
Functional Block Diagram .............................................................. 1
Revision History ............................................................................... 2
Specifications ..................................................................................... 3 
Channel-to-Channel Specifications ........................................... 3
Timing Specifications .................................................................. 4
Digital Specifications ................................................................... 5
Analog Specifications ................................................................... 6
Absolute Maximum Ratings ............................................................ 8
Thermal Characteristics .............................................................. 8
ESD Caution .................................................................................. 8
Pin Configuration and Function Descriptions ............................. 9
Typical Performance Characteristics ........................................... 11
Equivalent Input/Output Circuits ................................................ 12
Terminology .................................................................................... 13
Theory of Operation ...................................................................... 14
Programmable Timing Generation .............................................. 15
Precision Timing High Speed Timing Core ............................. 15
Horizontal Clamping and Blanking ......................................... 18
Complete Field—Combining H-Patterns ............................... 25
Mode Registers ........................................................................... 26
Horizontal Timing Sequence Example .................................... 28
Analog Front End Description and Operation ...................... 29
Applications Information .............................................................. 33
Recommended Power-Up Sequence ....................................... 33
Standby Mode Operation .......................................................... 36
CLI Frequency Change .............................................................. 36
Circuit Configuration ................................................................ 37
Grounding and Decoupling Recommendations .................... 37
3-Wire Serial Interface Timing ..................................................... 39
Layout of Internal Registers ...................................................... 40
Updating of Register Values ...................................................... 41
Complete Register Listing ............................................................. 42
Outline Dimensions ....................................................................... 50
Ordering Guide .......................................................................... 50
REVISION HISTORY
10/09—Revision A: Initial Version
Changes to Table 1 ............................................................................ 3
Changes to Table 3 ............................................................................ 4
Changes to Pin Function Descriptions Table ............................... 9
Changes to Figure 11 ...................................................................... 12
Changes to Individual HBLK Pattern Section ............................ 20
Changes to Table 14 ........................................................................ 25
Added Example Register Setting for Power-Up Section ........... 34
Added Additional Restrictions Section ....................................... 35
Changes to Table 2 .......................................................................... 36
Changes to 3 V System Compatibility Section ........................... 37
Changes to Grounding and Decoupling
Recommendations Section ............................................................ 37
Changes to Table 30 ........................................................................ 48
Changes to Table 31 ........................................................................ 49
Changes to Ordering Guide .......................................................... 50