IDT82V3002A 查看數據表（PDF） - Integrated Device Technology
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IDT82V3002A Datasheet PDF : 28 Pages
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IDT82V3002A WAN PLL WITH DUAL REFERENCE INPUTS
INDUSTRIAL TEMPERATURE RANGE
TABLE OF CONTENTS
1 IDT82V3002A PIN CONFIGURATION........................................................................................................................... 6
2 PIN DESCRIPTION ........................................................................................................................................................ 7
3 FUNCTIONAL DESCRIPTION..................................................................................................................................... 10
3.1 State Control Circuit............................................................................................................................................. 10
3.1.1 Normal Mode ............................................................................................................................................11
3.1.2 Fast Lock Mode ........................................................................................................................................ 11
3.1.3 Holdover Mode ......................................................................................................................................... 11
3.1.4 Freerun Mode ........................................................................................................................................... 12
3.2 Frequency Select Circuit...................................................................................................................................... 12
3.3 Reference Input Switch........................................................................................................................................ 12
3.4 Reference Input Monitor ...................................................................................................................................... 12
3.5 Invalid Input Signal Detection .............................................................................................................................. 12
3.6 TIE Control Block................................................................................................................................................. 12
3.7 DPLL Block .......................................................................................................................................................... 14
3.7.1 Phase Detector (PHD) .............................................................................................................................. 15
3.7.2 Limiter ....................................................................................................................................................... 15
3.7.3 Loop Filter................................................................................................................................................. 15
3.7.4 Fraction Block ........................................................................................................................................... 15
3.7.5 Digital Control Oscillator (DCO)................................................................................................................ 15
3.7.6 Lock Indicator ........................................................................................................................................... 16
3.7.7 Output Interface ........................................................................................................................................ 16
3.8 OSC ..................................................................................................................................................................... 16
3.8.1 Clock Oscillator......................................................................................................................................... 16
3.9 JTAG.................................................................................................................................................................... 16
3.10 Reset Circuit ........................................................................................................................................................ 16
4 MEASURES OF PERFORMANCE .............................................................................................................................. 17
4.1 Intrinsic Jitter........................................................................................................................................................ 17
4.2 Jitter Tolerance .................................................................................................................................................... 17
4.3 Jitter Transfer....................................................................................................................................................... 17
4.4 Frequency Accuracy ............................................................................................................................................17
4.5 Holdover Accuracy............................................................................................................................................... 17
4.6 Capture Range .................................................................................................................................................... 17
4.7 Lock Range.......................................................................................................................................................... 17
4.8 Phase Slope ........................................................................................................................................................ 17
4.9 Time Interval Error (TIE) ...................................................................................................................................... 17
4.10 Maximum Time Interval Error (MTIE) .................................................................................................................. 17
4.11 Phase Continuity.................................................................................................................................................. 18
4.12 Phase Lock Time ................................................................................................................................................. 18
5 TEST SPECIFICATIONS ............................................................................................................................................. 19
5.1 AC Electrical Characteristics ............................................................................................................................... 20
6 TIMING CHARACTERISTICS...................................................................................................................................... 24
7 ORDERING INFORMATION ........................................................................................................................................ 28
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