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Microsemi SA.22c - User Manual

Microsemi SA.22c
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Designer Reference and User Guide
SA.22c Rubidium Oscillator

Table of Contents

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Summary

Revision History

Revision D Details

Details changes made in Revision D of the document.

Revision C Details

Details changes made in Revision C of the document.

Revision B Details

Details changes made in Revision B of the document.

Revision A Details

Details changes made in Revision A of the document.

Overview

Applications

Lists typical applications of the SA.22c oscillator.

Specifications

Provides physical and electrical specifications for the SA.22c.

Design Integration Considerations

Mechanical Considerations

Details mounting and connector information for the SA.22c.

Environmental Considerations

Discusses thermal, humidity, and dust effects on the SA.22c.

External Interfaces and Grounding

Covers I/O connector and grounding practices for the SA.22c.

Electrical Interface

Details main input/output signals of the SA.22c.

Modifiable Unit Settings

Information on configurable hardware/software items for the SA.22c.

Susceptibility to Input Noise

Discusses noise impact on SA.22c performance.

Reliability and Maintenance

Covers unit reliability and service for the SA.22c.

Installation and Operation

Installation

Provides general installation advice for the SA.22c.

Start-Up Sequence

Details the unit's warm-up and stabilization process.

Theory of Operation

Explains the FLL and control loop principles of the SA.22c.

Troubleshooting

Lists common faults and checks for the SA.22c.

Repairs and Support

Information on factory service and contact details.

Appendix: Using the Developers Kit

Mounting the Unit with the Adapter Test Board

Guides mounting the SA.22c unit to the test board.

Interfacing the Adapter Test Board

Explains connecting and using the SA.22c adapter test board.

Options for Supplying Power to the Adapter Test Board

Details power supply options for the test board.

Appendix: Microsemi Serial Interface Protocol

Using the Microsemi Serial Interface Protocol

Introduces MSIP for PC communication with SA.22c.

Host Terminal Emulator Setup

Configures terminal for MSIP communication.

Run Mode Data Format (Customer Mode)

Explains data encoding for customer mode in MSIP.

Factory Mode

Notes factory mode data output is not for users.

Serial Interface Initialization

Describes serial interface initialization steps for MSIP.

Appendix: One Pulse Per Second Source Connection

Connection Requirements

Lists connections required for 1PPS setup.

Background

Explains GPS synchronization benefits for time/frequency.

1 PPS Functions

Details SA.22c's 1PPS capabilities.

System Requirements

Lists requirements for 1PPS setup and operation.

1 PPS Algorithm Operation

Factory Default

Provides default damping factor and tau values for 1PPS sync.

Setting the 1 PPS Synchronization

Steps for configuring 1PPS signal synchronization.

Setting the 1 PPS Synchronization

Changing the y Coefficients

Steps to modify damping factor and time constant.

y Coefficients Factory Default

Details factory default y coefficients.

The j Command

Returns delta register and 1PPS state values.

The g Command

Toggles 1PPS modes and lock indicator behavior.

1 PPS Algorithm Theory of Operation

Flywheeling Recovery Example-Normal

Demonstrates normal 1PPS output recovery.

Recovery with JamSynch

Shows 1PPS recovery after induced errors.

Microsemi SA.22c Specifications

General IconGeneral
BrandMicrosemi
ModelSA.22c
CategoryPower Tool
LanguageEnglish

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