AD9114 查看數據表（PDF） - Analog Devices

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AD9114

Dual Low Power, 8-/10-/12-/14-Bit TxDAC Digital-to-Analog Converters

Analog Devices 

AD9114/AD9115/AD9116/AD9117

TABLE OF CONTENTS

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

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

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

Product Highlights ........................................................................... 1

Revision History ............................................................................... 3

Functional Block Diagram .............................................................. 4

Specifications..................................................................................... 5

DC Specifications ......................................................................... 5

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

AC Specifications.......................................................................... 8

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

Thermal Resistance ...................................................................... 9

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

Pin Configurations and Function Descriptions ......................... 10

Typical Performance Characteristics ........................................... 18

Terminology .................................................................................... 31

Theory of Operation ...................................................................... 32

Serial Peripheral Interface (SPI) ................................................... 33

General Operation of the Serial Interface ............................... 33

Instruction Byte .......................................................................... 33

Serial Interface Port Pin Descriptions ..................................... 33

MSB/LSB Transfers..................................................................... 34

Serial Port Operation ................................................................. 34

Pin Mode ..................................................................................... 34

SPI Register Map............................................................................. 35

Data Sheet

SPI Register Descriptions .............................................................. 36

Digital Interface Operation ........................................................... 40

Digital Data Latching and Retimer Section............................ 41

Estimating the Overall DAC Pipeline Delay........................... 42

Reference Operation .................................................................. 43

Reference Control Amplifier .................................................... 43

DAC Transfer Function ............................................................. 43

Analog Output ............................................................................ 44

Self-Calibration........................................................................... 44

Coarse Gain Adjustment ........................................................... 45

Using the Internal Termination Resistors ............................... 46

Applications Information .............................................................. 47

Output Configurations .............................................................. 47

Differential Coupling Using a Transformer ............................... 47

Single-Ended Buffered Output Using an Op Amp ................ 47

Differential Buffered Output Using an Op Amp .................. 48

Auxiliary DACs........................................................................... 48

DAC-to-Modulator Interfacing................................................ 49

Correcting for Nonideal Performance of Quadrature

Modulators on the IF-to-RF Conversion ................................ 49

I/Q Channel Gain Matching ..................................................... 49

LO Feedthrough Compensation .............................................. 50

Results of Gain and Offset Correction .................................... 50

Outline Dimensions ....................................................................... 51

Ordering Guide .......................................................................... 52

Rev. D | Page 2 of 52

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