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参数资料
型号： AD9114-DPG2-EBZ
厂商： Analog Devices Inc
文件页数： 12/52页
文件大小： 0K
描述： IC DAC DUAL 8BIT LO PWR 40LFCSP
标准包装： 1
系列： TxDAC®
DAC 的数量： 2
位数： 8
采样率（每秒）： 125M
数据接口： 串行
DAC 型： 电流
工作温度： -40°C ~ 85°C
已供物品： 板
已用 IC / 零件： AD9114
AD9114/AD9115/AD9116/AD9117
Data Sheet
Rev. C | Page 2 of 52
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
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
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