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参数资料
型号： ACS8509
元件分类： 数字传输电路
英文描述： ATM/SONET/SDH SUPPORT CIRCUIT, PQFP100
封装： LQFP-100
文件页数： 12/68页
文件大小： 703K
代理商： ACS8509
Table of Contents
Revision 2.00/January 2006 Semtech Corp.
Page 2
www.semtech.com
ACS8509 SETS
Section
Page
ADVANCED COMMUNICATIONS
FINAL
DATASHEET
Description ................................................................................................................................................................................................. 1
Block Diagram............................................................................................................................................................................................ 1
Features ..................................................................................................................................................................................................... 1
Table of Contents ...................................................................................................................................................................................... 2
Pin Diagram ............................................................................................................................................................................................... 4
Pin Description........................................................................................................................................................................................... 5
Functional Description .............................................................................................................................................................................. 8
Local Oscillator Clock.........................................................................................................................................................................8
Crystal Frequency Calibration.................................................................................................................................................. 8
Input Interfaces..................................................................................................................................................................................9
Over-Voltage Protection .....................................................................................................................................................................9
Input Reference Clock Ports .............................................................................................................................................................9
DivN Examples....................................................................................................................................................................... 10
Input Wander and Jitter Tolerance ................................................................................................................................................ 10
Frame Sync and Multi-Frame Sync Clocks (Part of TOUT0) ................................................................................................. 12
Output Clock Ports .......................................................................................................................................................................... 12
Low-speed Output Clock (TOUT4) .......................................................................................................................................... 12
High-speed Output Clock (Part of TOUT0) ............................................................................................................................. 12
Low Jitter Multiple E1/DS1 Outputs .................................................................................................................................... 13
Output Wander and Jitter ............................................................................................................................................................... 13
Phase Variation ............................................................................................................................................................................... 14
Phase Build-Out .............................................................................................................................................................................. 17
Microprocessor Interface ............................................................................................................................................................... 17
Motorola Mode ...................................................................................................................................................................... 17
Intel Mode.............................................................................................................................................................................. 17
Multiplexed Mode.................................................................................................................................................................. 17
Serial Mode............................................................................................................................................................................ 17
EPROM Mode......................................................................................................................................................................... 17
Register Set ..................................................................................................................................................................................... 18
Configuration Registers ........................................................................................................................................................ 18
Status Registers .................................................................................................................................................................... 18
Register Access............................................................................................................................................................................... 18
Interrupt Enable and Clear ............................................................................................................................................................. 18
Register Map ................................................................................................................................................................................... 18
Register Map Description............................................................................................................................................................... 23
Selection of Input Reference Clock Source................................................................................................................................... 36
Forced Control Selection....................................................................................................................................................... 36
Automatic Control Selection ................................................................................................................................................. 36
Ultra Fast Switching .............................................................................................................................................................. 37
Clock Quality Monitoring................................................................................................................................................................. 37
Activity Monitoring........................................................................................................................................................................... 38
Frequency Monitoring..................................................................................................................................................................... 39
Modes of Operation ........................................................................................................................................................................ 39
Free-run mode ....................................................................................................................................................................... 39
Pre-Locked mode .................................................................................................................................................................. 39
Locked mode ......................................................................................................................................................................... 39
Lost_Phase mode.................................................................................................................................................................. 40
Holdover mode ...................................................................................................................................................................... 40
Pre-Locked(2) mode.............................................................................................................................................................. 41
Table of Contents
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相关代理商/技术参数
参数描述
ACS8509T 制造商:SEMTECH 制造商全称:Semtech Corporation 功能描述:Synchronous Equipment Timing Source for SONET or SDH Network Elements
ACS8510 制造商:Semtech Corporation 功能描述:Timing Source 100-Pin LQFP
ACS8510_03 制造商:SEMTECH 制造商全称:Semtech Corporation 功能描述:Synchronous Equipment Timing Source for SONET or SDH Network Elements
ACS8510REV2.1 制造商:Semtech Corporation 功能描述:Timing Source 100-Pin LQFP
ACS8510REV2.1SETS 制造商:未知厂家 制造商全称:未知厂家 功能描述:Synchronous Equipment Timing Source for SONET or SDH Network Elements
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