IDT82V3011PVG【PDF 23/31 页】IC PLL WAN T1/E1/OC3 SGL 56-SSOP

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Table Of Contents

3

May 24, 2006

TABLE OF CONTENTS

Pin Description...................................................................................................................................................................................................7

Functional Description ......................................................................................................................................................................................9

State Control Circuit ..................................................................................................................................................................................9

Normal Mode..............................................................................................................................................................................10

Fast Lock Mode..........................................................................................................................................................................10

Holdover Mode ...........................................................................................................................................................................10

Freerun Mode.............................................................................................................................................................................10

Frequency Select Circuit .........................................................................................................................................................................10

Reference Input Monitor ..........................................................................................................................................................................10

Invalid Input Signal Detection ..................................................................................................................................................................10

TIE Control Block.....................................................................................................................................................................................11

DPLL Block..............................................................................................................................................................................................13

Phase Detector (PHD)................................................................................................................................................................13

Limiter.........................................................................................................................................................................................13

Loop Filter ..................................................................................................................................................................................13

Fraction Block.............................................................................................................................................................................13

Digital Control Oscillator (DCO)..................................................................................................................................................13

Lock Indicator .............................................................................................................................................................................13

Output Interface..........................................................................................................................................................................13

OSC.........................................................................................................................................................................................................13

Clock Oscillator ..........................................................................................................................................................................13

JTAG .......................................................................................................................................................................................................14

Reset Circuit ............................................................................................................................................................................................14

2.10 Power Supply Filtering Techniques .........................................................................................................................................................15

Measures of Performance ...............................................................................................................................................................................16

Intrinsic Jitter ...........................................................................................................................................................................................16

Jitter Tolerance........................................................................................................................................................................................16

Jitter Transfer ..........................................................................................................................................................................................16

Frequency Accuracy................................................................................................................................................................................16

Holdover Accuracy ..................................................................................................................................................................................16

Capture Range ........................................................................................................................................................................................16

Lock Range .............................................................................................................................................................................................16

Phase Slope ............................................................................................................................................................................................16

Time Interval Error (TIE)..........................................................................................................................................................................16

3.10 Maximum Time Interval Error (MTIE) ......................................................................................................................................................16

3.11 Phase Continuity .....................................................................................................................................................................................17

3.12 Phase Lock Time.....................................................................................................................................................................................17

Absolute Maximum Ratings ............................................................................................................................................................................18

Recommended DC Operating Conditions .....................................................................................................................................................18

DC Electrical Characteristics..........................................................................................................................................................................18

Single End Input/Output Port...................................................................................................................................................................18

Differential Output Port (LVDS) ...............................................................................................................................................................19

AC Electrical Characteristics..........................................................................................................................................................................20

Performance ............................................................................................................................................................................................20

Intrinsic Jitter Unfiltered ...........................................................................................................................................................................21

C1.5o (1.544 MHz) Intrinsic Jitter Filtered ...............................................................................................................................................21

C2o (2.048 MHz) Intrinsic Jitter Filtered ..................................................................................................................................................21

C19o (19.44 MHz) Intrinsic Jitter Filtered ................................................................................................................................................21

8 kHz Input to 8 kHz Output Jitter Transfer .............................................................................................................................................22

1.544 MHz Input to 1.544 MHz Output Jitter Transfer.............................................................................................................................22

2.048 MHz Input to 2.048 MHz Output Jitter Transfer.............................................................................................................................22

19.44 MHz Input to 19.44 MHz Output Jitter Transfer.............................................................................................................................23

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