ACS8514T View Datasheet(PDF) - Semtech Corporation
Part Name
Description
MFG CO.
ACS8514T
Synchronous Equipment Timing Source Partner IC for 2nd T4 DPLL, Accurate Monitoring & Input Extender
Semtech Corporation
'ACS8514T' PDF : 86 Pages View PDF
ACS8514 SETS Buddy
ADVANCED COMMS & SENSING FINAL
DATASHEET
Table of Contents
Section
Page
Description .........................................................................................................................................................................................................1
Block Diagram....................................................................................................................................................................................................1
Features..............................................................................................................................................................................................................1
Pin Diagram........................................................................................................................................................................................................3
Pin Description...................................................................................................................................................................................................4
Introduction ........................................................................................................................................................................................................7
General Description ..........................................................................................................................................................................................7
Overview ........................................................................................................................................................................................................7
Input Reference Clock Ports .......................................................................................................................................................................8
Locking Frequency Modes......................................................................................................................................................................8
PECL/LVDS/AMI Input Port Selection...................................................................................................................................................9
Clock Quality Monitoring........................................................................................................................................................................... 10
Activity Monitoring ................................................................................................................................................................................ 10
Frequency Monitoring .......................................................................................................................................................................... 12
Phase Monitoring ................................................................................................................................................................................. 13
Selection of Input Reference Clock Source ........................................................................................................................................... 14
Forced Control Selection ..................................................................................................................................................................... 14
Automatic Control Selection................................................................................................................................................................ 14
Modes of Operation................................................................................................................................................................................... 14
DPLL Architecture and Configuration...................................................................................................................................................... 15
Monitor DPLL Main Features .............................................................................................................................................................. 15
T4 DPLL Main Features ....................................................................................................................................................................... 15
Monitor DPLL Automatic Bandwidth Controls .................................................................................................................................. 15
Phase Detectors ................................................................................................................................................................................... 15
Phase Lock/Loss Detection ................................................................................................................................................................ 16
Damping Factor Programmability....................................................................................................................................................... 16
Local Oscillator Clock........................................................................................................................................................................... 16
Output Wander & Jitter ........................................................................................................................................................................ 17
Jitter and Wander Transfer.................................................................................................................................................................. 17
Input Wander and Jitter Tolerance..................................................................................................................................................... 17
Replication of Status & Priority Tables .............................................................................................................................................. 18
T4 Generation in Master and Slave ACS8514 ................................................................................................................................. 18
Output Clock Ports..................................................................................................................................................................................... 18
Microprocessor Interface .............................................................................................................................................................................. 19
Introduction to Microprocessor Modes .................................................................................................................................................. 19
Motorola Mode........................................................................................................................................................................................... 20
Intel Mode................................................................................................................................................................................................... 22
Multiplexed Mode...................................................................................................................................................................................... 24
Serial Mode ................................................................................................................................................................................................ 26
EPROM Mode............................................................................................................................................................................................. 28
Power-On Reset ......................................................................................................................................................................................... 28
Register Map ................................................................................................................................................................................................... 29
Register Organization................................................................................................................................................................................ 29
Multi-word Registers ............................................................................................................................................................................ 29
Register Access..................................................................................................................................................................................... 29
Interrupt Enable and Clear.................................................................................................................................................................. 29
Defaults.................................................................................................................................................................................................. 29
Register Descriptions..................................................................................................................................................................................... 32
Electrical Specifications................................................................................................................................................................................. 73
JTAG............................................................................................................................................................................................................. 73
Over-voltage Protection............................................................................................................................................................................. 73
ESD Protection........................................................................................................................................................................................... 73
Latchup Protection.................................................................................................................................................................................... 73
Maximum Ratings...................................................................................................................................................................................... 74
Revision 3.00 April 2007 © Semtech Corp.
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