AD9544SLASHPCBZ datasheet(2/62 Pages) AD

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AD9544

Data Sheet

Rev. 0 | Page 2 of 62

TABLE OF CONTENTS

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

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

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

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

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

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

Supply Voltage............................................................................... 5

Supply Current.............................................................................. 5

Power Dissipation......................................................................... 5

System Clock Inputs, XOA and XOB......................................... 6

Reference Inputs ........................................................................... 7

Reference Monitors ...................................................................... 8

DPLL Phase Characteristics........................................................ 8

Distribution Clock Outputs ........................................................ 9

Time Duration of Digital Functions ........................................ 10

Digital PLL (DPLL0, DPLL1) Specifications .......................... 10

Digital PLL Lock Detection Specifications ............................. 11

Holdover Specifications............................................................. 11

Analog PLL (APLL0, APLL1) Specifications.......................... 11

Output Channel Divider Specifications .................................. 11

System Clock Compensation Specifications........................... 12

Temperature Sensor Specifications .......................................... 12

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

Logic Input Specifications (RESETB, M0 to M6) .................. 14

Logic Output Specifications (M0 to M6) ................................ 14

Jitter Generation (Random Jitter) ............................................ 14

Phase Noise ................................................................................. 15

Absolute Maximum Ratings.......................................................... 19

Thermal Resistance .................................................................... 19

ESD Caution................................................................................ 19

Pin Configuration and Function Descriptions........................... 20

Typical Performance Characteristics ........................................... 22

Terminology .................................................................................... 26

Theory of Operation ...................................................................... 27

Overview...................................................................................... 27

Reference Input Physical Connections.................................... 27

Input/Output Termination Recommendations .......................... 28

System Clock Inputs................................................................... 28

Reference Clock Inputs.............................................................. 28

Clock Outputs ............................................................................. 29

System Clock PLL........................................................................... 30

System Clock Input Frequency Declaration ........................... 30

System Clock Source.................................................................. 30

2× Frequency Multiplier............................................................ 31

Prescale Divider.......................................................................... 31

Feedback Divider........................................................................ 31

System Clock PLL Output Frequency ..................................... 31

System Clock PLL Lock Detector............................................. 31

System Clock Stability Timer.................................................... 31

System Clock Input Termination Recommendations ........... 31

Digital PLL (DPLL) ........................................................................ 32

Overview ..................................................................................... 32

DPLL Phase/Frequency Lock Detectors ................................. 32

DPLL Loop Controller............................................................... 32

Applications Information .............................................................. 33

Optical Networking Line Card................................................. 33

Small Cell Base Station .............................................................. 34

Initialization Sequence................................................................... 35

Status and Control Pins ................................................................. 38

Multifunction Pins at Reset/Power-Up ................................... 39

Status Functionality.................................................................... 39

Control Functionality ................................................................ 39

Interrupt Request (IRQ) ................................................................ 44

IRQ Monitor ............................................................................... 44

IRQ Mask..................................................................................... 44

IRQ Clear..................................................................................... 44

Watchdog Timer ............................................................................. 46

Lock Detectors ................................................................................ 47

DPLL Lock Detectors ................................................................ 47

Phase Step Detector........................................................................ 49

Phase Step Limit ......................................................................... 49

Skew Adjustment........................................................................ 50

EEPROM Usage.............................................................................. 51

Overview ..................................................................................... 51

EEPROM Controller General Operation................................ 51

EEPROM Instruction Set .......................................................... 52

Multidevice Support .................................................................. 54

Serial Control Port ......................................................................... 56

SPI/I²C Port Selection................................................................ 56

SPI Serial Port Operation.......................................................... 56

AD9544/PCBZ 数据表(PDF) 2 Page - Analog Devices

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