ACS8526P 데이터 시트보기 (PDF) - Semtech Corporation
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ACS8526P Datasheet PDF : 74 Pages
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Table of Contents
ACS8526 LC/P LITE
ADVANCED COMMUNICATIONS
Table of Contents
Section
FINAL
DATASHEET
Page
Description ................................................................................................................................................................................................. 1
Block Diagram............................................................................................................................................................................................ 1
Features ..................................................................................................................................................................................................... 1
Table of Contents ...................................................................................................................................................................................... 2
Pin Diagram ............................................................................................................................................................................................... 3
Pin Description........................................................................................................................................................................................... 4
Introduction................................................................................................................................................................................................ 6
General Description................................................................................................................................................................................... 6
Inputs ..................................................................................................................................................................................................6
Preconfiguring Inputs - Expected Input Frequency ................................................................................................................ 7
Preconfiguring Inputs- SONET/SDH ........................................................................................................................................ 7
Input Locking Frequency Modes ............................................................................................................................................. 7
Selection of Input SECs .....................................................................................................................................................................8
Initialization .............................................................................................................................................................................. 8
SEC Selection - SRCSW pin...................................................................................................................................................... 8
Output Clock Phase Continuity on Source Switchover .......................................................................................................... 8
Activity Monitors.................................................................................................................................................................................9
SEC Activity Monitors ............................................................................................................................................................... 9
Fast Activity Monitor.............................................................................................................................................................. 10
Phase Locked Loops (PLLs) ........................................................................................................................................................... 10
PLL Overview ......................................................................................................................................................................... 10
PLL Architecture .................................................................................................................................................................... 11
PLL Operational Controls ...................................................................................................................................................... 14
DPLL Feature Summary ........................................................................................................................................................ 16
Outputs ............................................................................................................................................................................................ 17
Output Frequency Selection by Hardware ........................................................................................................................... 17
Output Frequency Selection by Register Programming...................................................................................................... 17
Power-On Reset............................................................................................................................................................................... 25
Local Oscillator Clock...................................................................................................................................................................... 27
Crystal Frequency Calibration............................................................................................................................................... 27
Status Reporting ............................................................................................................................................................................. 27
Loss of Input Signal - LOS Flag ............................................................................................................................................. 27
Status Information ................................................................................................................................................................ 27
Serial Interface................................................................................................................................................................................ 27
Register Map........................................................................................................................................................................................... 30
Register Organization ..................................................................................................................................................................... 30
Multi-word Registers ............................................................................................................................................................. 30
Register Access ..................................................................................................................................................................... 30
Flags ....................................................................................................................................................................................... 30
Defaults.................................................................................................................................................................................. 30
Register Descriptions ............................................................................................................................................................................. 32
Electrical Specifications ......................................................................................................................................................................... 61
JTAG ................................................................................................................................................................................................. 61
Over-voltage Protection .................................................................................................................................................................. 61
ESD Protection ................................................................................................................................................................................ 61
Latchup Protection.......................................................................................................................................................................... 61
Maximum Ratings ........................................................................................................................................................................... 62
Operating Conditions ...................................................................................................................................................................... 62
Jitter Performance .......................................................................................................................................................................... 65
Input/Output Timing ....................................................................................................................................................................... 67
Package Information .............................................................................................................................................................................. 68
Thermal Conditions......................................................................................................................................................................... 69
Application Information .......................................................................................................................................................................... 70
References .............................................................................................................................................................................................. 71
Abbreviations .......................................................................................................................................................................................... 71
Notes ....................................................................................................................................................................................................... 72
Trademark Acknowledgements ............................................................................................................................................................. 72
Revision Status/History ......................................................................................................................................................................... 73
Ordering Information .............................................................................................................................................................................. 74
Disclaimers...................................................................................................................................................................................... 74
Contacts........................................................................................................................................................................................... 74
Revision 4.01/June 2006 © Semtech Corp.
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