Microsemi SA.22c - Design Integration Considerations; Mechanical Considerations; Environmental Considerations; External Interfaces and Grounding

SA.22c Rubidium Oscillator
Designer Reference and User Guide Revision D
5 Appendix: Using the Developer’s Kit ........................................................................................... 16
5.1 Mounting the Unit with the Adapter Test Board ............................................................................. 16
5.2 Interfacing the Adapter Test Board .................................................................................................. 17
5.3 Options for Supplying Power to the Adapter Test Board ................................................................. 19
6 Appendix: Microsemi Serial Interface Protocol ........................................................................... 25
6.1 Using the Microsemi Serial Interface Protocol ................................................................................. 25
6.1.1 Host Terminal Emulator Setup .............................................................................................................. 25
6.1.2 Run Mode Data Format (Customer Mode) ........................................................................................... 25
6.1.3 Factory Mode ........................................................................................................................................ 28
6.1.4 Serial Interface Initialization .................................................................................................................. 28
7 Appendix: One Pulse Per Second Source Connection .................................................................. 30
7.1 Connection Requirements ................................................................................................................ 30
7.2 Background ....................................................................................................................................... 30
7.3 1PPS Functions ................................................................................................................................. 30
7.4 System Requirements ....................................................................................................................... 31
7.5 1PPS Algorithm Operation ................................................................................................................ 32
7.5.1 Factory Default ...................................................................................................................................... 32
7.6 Setting the 1PPS Synchronization ..................................................................................................... 32
7.6.1 Changing the y Coefficients ................................................................................................................... 33
7.6.2 The y Coefficients – Factory Default ..................................................................................................... 33
7.6.3 The j Command ..................................................................................................................................... 33
7.6.4 The g Command .................................................................................................................................... 34
7.7 Flywheeling Recovery Example–Normal .......................................................................................... 35
7.8 Recovery with JamSynch .................................................................................................................. 36
7.9 1PPS Algorithm Theory of Operation ............................................................................................... 36
7.9.1 1PPS Algorithm High Level Flow Chart .................................................................................................. 37
7.9.2 Initialization ........................................................................................................................................... 38
7.9.3 Holdover ................................................................................................................................................ 39
7.9.4 Calcslope ............................................................................................................................................... 40
7.9.5 JamSynch ............................................................................................................................................... 41
7.9.6 Discipline ............................................................................................................................................... 42