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AD9125 View Datasheet(PDF) - Analog Devices

Part NameDescriptionManufacturer
AD9125 Dual, 16-Bit, 1000 MSPS, TxDAC+ Digital-to-Analog Converter ADI
Analog Devices ADI
AD9125 Datasheet PDF : 56 Pages
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AD9125
TABLE OF CONTENTS
Features .............................................................................................. 1
Applications....................................................................................... 1
General Description ......................................................................... 1
Product Highlights ........................................................................... 1
Typical Signal Chain......................................................................... 1
Revision History ............................................................................... 2
Functional Block Diagram .............................................................. 3
Specifications..................................................................................... 4
DC Specifications ......................................................................... 4
Digital Specifications ................................................................... 5
Latency and Power-Up Timing Specifications ......................... 5
AC Specifications.......................................................................... 6
Absolute Maximum Ratings............................................................ 7
Thermal Resistance ...................................................................... 7
ESD Caution.................................................................................. 7
Pin Configuration and Function Descriptions............................. 8
Typical Performance Characteristics ........................................... 10
Terminology .................................................................................... 16
Theory of Operation ...................................................................... 17
Serial Port Operation ................................................................. 17
Data Format ................................................................................ 17
Serial Port Pin Descriptions...................................................... 17
Serial Port Options ..................................................................... 18
Device Configuration Register Map ............................................ 19
Device Configuration Register Descriptions.......................... 21
CMOS Input Data Ports ................................................................ 29
Dual-Word Mode ....................................................................... 29
Word Mode ................................................................................. 29
Byte Mode.................................................................................... 29
Interface Timing ......................................................................... 30
FIFO Operation .......................................................................... 30
Digital Datapath.............................................................................. 32
Premodulation ............................................................................ 32
Interpolation Filters ................................................................... 32
REVISION HISTORY
6/10—Revision 0: Initial Version
NCO Modulation ....................................................................... 35
Datapath Configuration ............................................................ 35
Determining Interpolation Filter Modes ................................ 36
Datapath Configuration Example ............................................ 37
Data Rates vs. Interpolation Modes......................................... 38
Coarse Modulation Mixing Sequences.................................... 38
Quadrature Phase Correction................................................... 39
DC Offset Correction ................................................................ 39
Inverse Sinc Filter ....................................................................... 39
DAC Input Clock Configurations ................................................ 40
DAC Input Clock Configurations ............................................ 40
Analog Outputs............................................................................... 42
Transmit DAC Operation.......................................................... 42
Auxiliary DAC Operation ......................................................... 43
Baseband Filter Implementation .............................................. 44
Driving the ADL5375-15 .......................................................... 44
Reducing LO Leakage and Unwanted Sidebands .................. 44
Device Power Dissipation.............................................................. 45
Temperature Sensor ................................................................... 46
Multichip Synchronization............................................................ 47
Synchronization with Clock Multiplication ............................... 47
Synchronization with Direct Clocking.................................... 49
Data Rate Mode Synchronization ............................................ 49
FIFO Rate Mode Synchronization ........................................... 50
Additional Synchronization Features ...................................... 51
Interrupt Request Operation ........................................................ 52
Interrupt Service Routine.......................................................... 52
Interface Timing Validation .......................................................... 53
SED Operation............................................................................ 53
SED Example .............................................................................. 53
Example Start-Up Routine ........................................................ 54
Outline Dimensions ....................................................................... 55
Ordering Guide .......................................................................... 55
Rev. 0 | Page 2 of 56
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