AD9868 Просмотр технического описания (PDF) - Analog Devices

Номер в каталоге

Компоненты Описание

Список матч

AD9868

Broadband Modem Mixed-Signal Front End

Analog Devices 

AD9868

TABLE OF CONTENTS

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

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

Functional Block Diagram .............................................................. 1

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

Revision History ............................................................................... 2

Specifications..................................................................................... 3

Tx Path Specifications.................................................................. 3

Rx Path Specifications.................................................................. 4

Power Supply Specifications........................................................ 6

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

Serial Port Timing Specifications ............................................... 7

Half-Duplex Data Interface (ADIO Port) Timing

Specifications ................................................................................ 8

Full-Duplex Data Interface (Tx and Rx Port) Timing

Specifications ................................................................................ 8

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

Thermal Characteristics .............................................................. 9

Explanation of Test Levels ........................................................... 9

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

Pin Configuration and Function Descriptions........................... 10

Serial Port ........................................................................................ 12

Register Map Description.......................................................... 14

Serial Port Interface (SPI).......................................................... 14

Digital Interface .............................................................................. 16

Half-Duplex Mode ..................................................................... 16

REVISION HISTORY

5/07—Revision 0: Initial Version

Full-Duplex Mode ...................................................................... 17

RxPGA Control .......................................................................... 19

TxPGA Control .......................................................................... 20

Transmit Path.................................................................................. 21

Digital Interpolation Filters ...................................................... 21

TxDAC and IAMP Architecture .............................................. 22

Tx Programmable Gain Control .............................................. 23

TxDAC Output Operation........................................................ 23

IAMP Current-Mode Operation.............................................. 23

Receive Path .................................................................................... 24

Rx Programmable Gain Amplifier........................................... 24

Low-Pass Filter............................................................................ 25

Analog-to-Digital Converter (ADC)....................................... 26

AGC Timing Considerations.................................................... 27

Clock Synthesizer ........................................................................... 28

Power Control and Dissipation .................................................... 30

Power-Down ............................................................................... 30

Half-Duplex Power Savings ...................................................... 30

Power Reduction Options ......................................................... 31

Power Dissipation....................................................................... 33

Mode Select upon Power-Up and Reset.................................. 33

Analog and Digital Loopback Test Modes.............................. 34

Outline Dimensions ....................................................................... 35

Ordering Guide .......................................................................... 35

Rev. 0 | Page 2 of 36

Share Link: