AD9547BCPZ datasheet(2/106 Pages) AD

2 / 106 page

AD9547

Data Sheet

Rev. G | Page 2 of 106

TABLE OF CONTENTS

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

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

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

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

Revision History ........

....................................................................... 3

Specifications..................................................................................... 4

Supply Voltage............................................................................... 4

Supply Current.............................................................................. 4

Power Dissipation......................................................................... 4

Logic Inputs (M0 to M7, RESET)............................................... 5

Logic Outputs (M0 to M7, IRQ) ................................................ 5

System Clock Inputs (SYSCLKP, SYSCLKN)............................ 5

Distribution Clock Inputs (CLKINP, CLKINN) ...................... 6

Reference Inputs (REFA/REFAA, REFB/REFBB).................... 7

Reference Monitors ...................................................................... 7

Reference Switchover Specifications.......................................... 8

Distribution Clock Outputs (OUT0, OUT1) ........................... 8

DAC Output Characteristics (DACOUTP, DACOUTN) ....... 9

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

Digital PLL .................................................................................. 10

Digital PLL Lock Detection ...................................................... 10

Holdover Specifications............................................................. 10

Serial Port Specifications—SPI Mode...................................... 11

Serial Port Specifications—I2C Mode ...................................... 12

Jitter Generation ......................................................................... 13

Absolute Maximum Ratings.......................................................... 14

ESD Caution................................................................................ 14

Pin Configuration and Function Descriptions........................... 15

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

Input/Output Termination Recommendations .......................... 23

Getting Started ................................................................................ 24

Power-On Reset .......................................................................... 24

Initial M0 to M7 Pin Programming......................................... 24

Device Register Programming.................................................. 24

Theory of Operation ...................................................................... 26

Overview...................................................................................... 26

Reference Clock Inputs.............................................................. 27

Reference Monitors .................................................................... 27

Reference Profiles ....................................................................... 28

Reference Switchover ................................................................. 30

Digital Phase-Locked Loop (DPLL) Core............................... 32

Direct Digital Synthesizer (DDS)............................................. 34

Tuning Word Processing ........................................................... 35

Loop Control State Machine..................................................... 36

System Clock Inputs................................................................... 37

SYSCLK PLL Multiplier............................................................. 38

Clock Distribution ..................................................................... 39

Status and Control.......................................................................... 44

Multifunction Pins (M0 to M7) ............................................... 44

IRQ Pin ........................................................................................ 45

Watchdog Timer......................................................................... 45

EEPROM ..................................................................................... 46

Serial Control Port ......................................................................... 51

SPI/I2C Port Selection................................................................ 51

SPI Serial Port Operation.......................................................... 51

I2C Serial Port Operation .......................................................... 56

I/O Programming Registers .......................................................... 59

Buffered/Active Registers.......................................................... 59

Autoclearing Registers............................................................... 59

Serial Port Configuration and Part Identification

(Register 0x0000 to Register 0x0005) ...................................... 70

System Clock (SYSCLK) (Register 0x0100 to

General Configuration (Register 0x0200 to

DPLL Configuration (Register 0x0300 to Register 0x031B) ..... 75

Clock Distribution Output Configuration (Register 0x0400

to Register 0x0417)......... ........................................................... 77

Reference Input Configuration (Register 0x0500 to

Profile Registers (Register 0x0600 to Register 0x07FF) ........ 81

Operational Controls (Register 0x0A00 to

Clock Part Serial ID (Register 0x0C00 to Register 0x0C07) ..... 94

Status Readback (Register 0x0D00 to Register 0x0D19) ...... 95

Nonvolatile Memory (EEPROM) Control (Register 0x0E00

to Register 0x0E03).................................................................... 97

EEPROM Storage Sequence (Register 0x0E10 to

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