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AD9949 Arkusz danych(PDF) 2 Page - Analog Devices |
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AD9949 Arkusz danych(HTML) 2 Page - Analog Devices |
2 / 36 page 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 |
Podobny numer części - AD9949_15 |
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Podobny opis - AD9949_15 |
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