Microchip Technology SA5 Series, User Manual

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MAC-SA5X USER’S GUIDE
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2019 Microchip Technology Inc. DS50002938A-page 7
Table of Contents
Preface ........................................................................................................................... 3
Purpose of This Guide........................................................................................... 3
Who Should Read This Guide............................................................................... 3
Document Layout .................................................................................................. 3
Conventions Used in this Guide ............................................................................ 4
Warnings, Cautions, Recommendations, and Notes............................................. 4
Where to Find Answers to Product and Document Questions .............................. 5
Related Documents and Information..................................................................... 5
The Microchip Website.......................................................................................... 5
Customer Support ................................................................................................. 6
Document Revision History ................................................................................... 6
Chapter 1. Product Overview
1.1 MAC-SA5X Overview ...................................................................................... 9
1.1.1 Key Features .............................................................................................. 10
1.2 Physical Description ...................................................................................... 10
1.2.1 Communications Connections.................................................................... 11
1.2.2 Input Connections....................................................................................... 11
1.2.3 Output Connections.................................................................................... 11
1.2.4 Power and Ground Connections ................................................................ 12
1.3 Functional Description................................................................................... 12
1.4 Configuration Management ........................................................................... 13
1.5 Alarms ........................................................................................................... 13
Chapter 2. Installation
2.1 Handling Considerations .............................................................................. 15
2.2 Mounting Considerations .............................................................................. 15
2.21 Absolute Minimum and Maximum Ratings .................................................. 19
2.3 Start-Up Sequence ....................................................................................... 19
Chapter 3. Operation
3.1 Configure the Serial Port ............................................................................... 21
3.2 Analog Tuning ............................................................................................... 21
3.3 Digital Tuning ................................................................................................ 22
3.3.1 Calibration .................................................................................................. 22
3.4 1PPS Disciplining .......................................................................................... 23
3.4.1 Theory ........................................................................................................ 23
3.4.2 Selection of Disciplining Time Constant, “Tau”........................................... 25
3.4.3 JamSync..................................................................................................... 26
3.4.4 1PPS Phase Measurement Mode .............................................................. 26
3.4.5 Cable Length Compensation ...................................................................... 26