NDLI: Trim effect compensation using an artificial neural network

Content Provider	IEEE Xplore Digital Library
Author	Esterline, J.C.
Copyright Year	2013
Description	Author affiliation: Greenray Ind., Mechanicsburg, PA, USA (Esterline, J.C.)
Abstract	Trim effect is a skewing of the frequency versus temperature performance of a crystal oscillator as the frequency is pulled (trimmed) away from the oscillator's nominal frequency. As TCXO (Temperature Compensated Crystal Oscillator) frequency versus temperature stabilities have improved to ppb (part per billion) levels trim effect has become more of a concern. Even though unwanted, the degradation of performance from trim effect is something generally accepted as a characteristic of TCXOs. This paper focuses on a method of compensating crystal oscillator trim effect. Through the use of an artificial neural network, trim effect compensation of AT cut crystal oscillators can be achieved with better than +/-15ppb stability over the industrial temperature range (-40 to +85 °C). This is more than a 10 fold improvement over the inherent trim effect found using state of the art polynomial function generator compensation. The theory of this compensation method with be discussed, and data showing the results of trim effect compensation on actual oscillators will be presented.
Sponsorship	IEEE Ultrason., Ferroelectr., Freq. Control Soc.
Starting Page	963
Ending Page	966
File Size	812577
Page Count	4
File Format	PDF
DOI	10.1109/EFTF-IFC.2013.6702048
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2013-07-21
Publisher Place	Czech Republic
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Neurons Artificial neural networks Crystals Voltage control Oscillators Frequency control Biological neural networks
Content Type	Text
Resource Type	Article

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1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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