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Summary of Contents for Microchip Technology 8040C
- Page 1 8040C/8040CLN User’s Guide Rubidium Frequency Standard 2021 Microchip Technology Inc. and its subsidiaries DS50003206A...
- Page 2 Microchip Technology Inc. in other countries. stated. GestIC is a registered trademark of Microchip Technology Germany II GmbH & Co. KG, a subsidiary of Microchip Technology Inc., in other countries. All other trademarks mentioned herein are property of their respective companies.
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Page 3: Preface
A note has been included on any para- graph where an update applies. PURPOSE OF THIS GUIDE The 8040C/8040CLN User’s Guide describes the procedures for unpacking, installing, using, maintaining the 8040C/8040CLN. Please review the most recent copy of the datasheet: https://www.microsemi.com/document-portal/doc_download/133415-rubidium-8040c- datasheet... -
Page 4: Conventions Used In This Guide
8040C/8040CLN internal rubidium reference changing from the SA22C oscillator to the SA55 oscillator. • Appendix B. “Revised Information Due to Implementation of SA55”: Expla- nation of changes to the 8040C/8040CLN start banner, 1 PPS disciplining, and frequency settings for the change to SA55. CONVENTIONS USED IN THIS GUIDE... - Page 5 Choice of mutually exclusive errorlevel {0|1} character: { | } arguments; an OR selection Ellipses... Replaces repeated text var_name [, var_name...] Represents code supplied by void main (void) user { ... 2021 Microchip Technology Inc. and its subsidiaries DS50003206A-page 5...
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Page 6: Warnings, Cautions, Recommendations, And Notes
• Business of Microchip – Product selector and ordering guides, latest Microchip press releases, listing of seminars and events, listings of Microchip sales offices, distributors and factory representatives 2021 Microchip Technology Inc. and its subsidiaries DS50003206A-page 6... -
Page 7: Customer Support
(FAE) for support. Local sales offices are also available to help customers. A listing of sales offices and locations is included in the back of this document. Technical support is available through the website at: www.microsemi.com/ftdsupport 2021 Microchip Technology Inc. and its subsidiaries DS50003206A-page 7... -
Page 8: Document Revision History
Preface DOCUMENT REVISION HISTORY Revision A (October 2021) • Initial release of this document as MIcrochip DS50003206A. This Microchip docu- ment replaces the Microsemi document 15254-201 revision D. 2021 Microchip Technology Inc. and its subsidiaries DS50003206A-page 8... -
Page 9: Table Of Contents
3.4.3 Manual Control ................... 17 3.4.4 Automatic Control ..................17 3.5 Configuring Outputs ..................17 3.6 Console ......................19 Chapter 4. Options 4.1 Twelve Output Option..................21 4.2 Low Phase Noise Option................21 2021 Microchip Technology Inc. and its subsidiaries DS50003206A-page 9... - Page 10 B.1 Start Banner....................27 B.2 Revision to 1 PPS Disciplining Section Based on SA55 Functionality..28 B.3 Revision to Frequency Settings Section Based on SA55 Functionality ..29 Worldwide Sales and Service..................31 2021 Microchip Technology Inc. and its subsidiaries DS50003206A-page 10...
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Page 11: Chapter 1. Introduction
• 1 MHz, 5 MHz, or 10 MHz square wave • 1 PPS The 8040C uses Microchip’s model SA22C Rubidium as its internal oscillator, and provides direct user control via an RS-232 to perform the following tasks: • Adjust the SA22C Rubidium oscillator frequency. - Page 12 8040C/8040CLN User’s Guide NOTES: 2021 Microchip Technology Inc. and its subsidiaries DS50003206A-page 12...
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Page 13: Chapter 2. Installation
POWER CONNECTION/FUSE/VOLTAGE The Microchip 8040C is powered from an AC source or optionally from a 24V DC source. The AC fuse is located inside the AC connector/filter on the rear panel. To change the fuse, open the cover on the rear panel AC connector by using a screw- driver on the connector’s cover slot. -
Page 14: Output Signals
The 1 PPS IN connector takes a 1 PPS input from an external source, such as a GPS receiver or Cesium frequency standard, which is then used to discipline the 8040C’s Rubidium oscillator. See Section 6.4 “Disciplining to External 1 PPS”. -
Page 15: Chapter 3. Operation
INDICATOR LEDS CAUTION Do not use the Microchip 8040C as a reference source until the LOCK indicator is turned on. The three LED indicators on the front panel provide a cursory view of the 8040C/8040CLN operating status. -
Page 16: Disciplining To External 1 Pps
3.4.2 Operation Connect the 1 PPS source to the 1 PPS IN on the rear panel of the 8040C/8040CLN. The 8040C/8040CLN’s Microchip Synchronization Adaptive Algorithm (SSAA) quali- fies the 1 PPS input reference by detecting 256 valid 1 PPS input pulses and determin- ... -
Page 17: Manual Control
The 8040C/8040CLN has the unique capability of providing flexible output configura- tions. To change the output configuration of your 8040C/8040CLN: 1. Unplug the 8040C/8040CLN from the AC or DC power source and remove the 2021 Microchip Technology Inc. and its subsidiaries... - Page 18 8040C/8040CLN User’s Guide top cover by removing the Phillips head screws around the perimeter of the unit. 2. Locate the main PCB inside the 8040C/8040CLN as indicated in the top half of Figure 6-2 and identify the dipswitches shown in the bottom half of Figure 6-2.
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Page 19: Console
4. After setting the outputs, replace the top cover and apply power. CONSOLE The Microchip Serial Interface Protocol (SIP) provides user communication with the 8040C/8040CLN through the serial port when the unit is connected to a host PC or terminal. All “developer-mode” commands are single-letter format. 3.6.1... - Page 20 8040C/8040CLN User’s Guide NOTES: 2021 Microchip Technology Inc. and its subsidiaries DS50003206A-page 20...
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Page 21: Chapter 4. Options
8040C/8040CLN USER’S GUIDE Chapter 4. Options There are two optional configurations for the 8040C/8040CLN, the Twelve Output option and the Low Phase Noise option. The additional outputs require an additional circuit card that provides six configurable outputs that are set up the same as in the standard unit. - Page 22 8040C/8040CLN User’s Guide NOTES: 2021 Microchip Technology Inc. and its subsidiaries DS50003206A-page 22...
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Page 23: Chapter 5. Technical Support
San Jose, CA 95134 Toll-free in North America: 1-888-367-7966 Telephone: 408-428-7907 Fax: 408-428-7998 email: ftd.support@microchip.com Internet: www.microchip.com/csac Europe, Middle East, and Africa (EMEA) Microchip FTS Services and Support EMEA Altlaufstrasse 42 85635 Hoehenkirchen-Siegertsbrunn 2021 Microchip Technology Inc. and its subsidiaries DS50003206A-page 23... -
Page 24: Customer Support
PREPARATION FOR SHIPMENT Turn off the Microchip 8040C/8040CLN prior to shipment by removing the AC or DC power cord from the rear panel. Package the instrument in its original packing, if possible. If the original packing materials are not available, pack the unit in a reinforced cardboard carton using foam to take up any space inside the carton. -
Page 25: Appendix A. Pcn00031
D, 15230-108 rev D,15230-109 rev D, 15230-111 rev D Production Shipment Schedule: Product 8040C with new oscillator is planned to ship no sooner than December 1st 2021. Existing backlog will be unaffected unless scheduled for shipment after Decem- ber 1st 2021. Exact date of cut over may vary dependent upon material availability and qualification completion. - Page 26 Microchip and is intended only for distribution by Microchip to its customers, for cus- tomers’ use only. It must not be copied or provided to any third party without Microchip’s prior written consent. 2021 Microchip Technology Inc. and its subsidiaries DS50003206A-page 26...
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Page 27: Appendix B: Revised Information Due To The Implementation Of Sa55
Appendix B. Revised Information Due to Implementation of SA55 The 8040C/8040CLN internal rubidium reference changed from the SA22C to the SA55 per PCN00031. No specification parameters were changed to the 8040C; however, some of the functionality related to the SA22C Microsemi Serial Interface Protocol specified in the Microsemi SA22C User Guide could not be directly emulated (https://www.microsemi.com/document-portal/doc_down-... -
Page 28: Revision To 1 Pps Disciplining Section Based On Sa55 Functionality
Disciplining parameter. The algorithm implements a high-resolution phase meter within the 8040C to automatically correct the phase and frequency relative to a reference 1 PPS input once per second with a resolution of 450 ps. The algorithm will simultaneously steer the phase and frequency to that of the external reference (1 PPS input), ultimately achieving accuracies of <1 ns and 1E-13, respectively,... -
Page 29: Revision To Frequency Settings Section Based On Sa55 Functionality
The frequency setting commands match SA22C, with the exception of the last frequency offset sent through command f will always be stored during power off. The command t is no longer required to store the value. 2021 Microchip Technology Inc. and its subsidiaries DS50003206A-page 29... - Page 30 8040C/8040CLN User’s Guide NOTES: 2021 Microchip Technology Inc. and its subsidiaries DS50003206A-page 30...
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Page 31: Worldwide Sales And Service
Tel: 46-31-704-60-40 Tel: 631-435-6000 Sweden - Stockholm San Jose, CA Tel: 46-8-5090-4654 Tel: 408-735-9110 UK - Wokingham Tel: 408-436-4270 Tel: 44-118-921-5800 Canada - Toronto Fax: 44-118-921-5820 Tel: 905-695-1980 Fax: 905-695-2078 DS50003206A-page 31 2021 Microchip Technology Inc. and its subsidiaries 09/14/21...
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