Frequency Temperature Compensation Techniques for Quartz Crystal Oscillators - read free eBook in online reader or directly download on the web page. Select files or add your book in reader. Download and read online ebook Frequency Temperature Compensation Techniques for Quartz Crystal Oscillators write by C. D. Dominguez. This book was released on 1966. Frequency Temperature Compensation Techniques for Quartz Crystal Oscillators available in PDF, EPUB and Kindle. The purpose of this program was to advance circuit techniques for a new class of ovenless crystal oscillators having frequency temperature stabilities previously achieved in temperature stabilized oscillators consuming several watts of power. Two basic approaches to obtain computer optimized component values for a compensation network required to generate a desired non-linear voltage function, and hence achieve the desired degree of stability, are presented. Two groups of oscillator units, one group built to achieve a design goal frequency stability of + or -1 x 10 to the minus 7th power over the ambient temperature range of -40 C to +75 C and the other group built to achieve a design goal frequency stability of + or -5 x 10 to the minus 8th power over the ambient temperature range of -5 C to approximately +85 C, are discussed. (Author).
Research Work for Frequency Temperature Compensation Techniques for Quartz Crystal Oscillators
Research Work for Frequency Temperature Compensation Techniques for Quartz Crystal Oscillators - read free eBook in online reader or directly download on the web page. Select files or add your book in reader. Download and read online ebook Research Work for Frequency Temperature Compensation Techniques for Quartz Crystal Oscillators write by . This book was released on 1964. Research Work for Frequency Temperature Compensation Techniques for Quartz Crystal Oscillators available in PDF, EPUB and Kindle. The purpose of this project is to evolve a practical approach to the temperature compensation of quartz crystal oscillators. The study will be concentrated on a nominal frequency of five megacycles, but will be generally applicable to AT cut quartz crystals of from 1 to 20 megacycles. The use of graphical analysis for TCXO design is discussed. The results of this investigation show that a graphical analysis will not be useable for very accurate compensation because of resolution and parameters that cannot be taken into account with graphs. The techniques for determining compensation networks are discussed. A new technique is described where diodes are used in conjunction with thermistor-resistor networks. The 5 x 10 to the minus 8th power, Group III, TCXO's are discussed. Results of the first compensation attempts are given. The compensation networks and techniques used are presented. (Author).
Research Work for Frequency Temperature Compensation Techniques for Quartz Crystal Oscillators in Conjunction with Signal Corps Technical Requirements Scl-6610b Dated 9 September 1963
Research Work for Frequency Temperature Compensation Techniques for Quartz Crystal Oscillators in Conjunction with Signal Corps Technical Requirements Scl-6610b Dated 9 September 1963 - read free eBook in online reader or directly download on the web page. Select files or add your book in reader. Download and read online ebook Research Work for Frequency Temperature Compensation Techniques for Quartz Crystal Oscillators in Conjunction with Signal Corps Technical Requirements Scl-6610b Dated 9 September 1963 write by BENDIX CORP DAVENPORT IA PIONEER-CENTRAL DIV.. This book was released on 1964. Research Work for Frequency Temperature Compensation Techniques for Quartz Crystal Oscillators in Conjunction with Signal Corps Technical Requirements Scl-6610b Dated 9 September 1963 available in PDF, EPUB and Kindle. A computer program is presented that was successfully used to determine thermistor-resistor compensation networks. Examples are given and results of synthesizing a number of compensation networks are given. The computer program will solve for the thermistor-resistor values in the compensation network, the R1/R2 ratio of the network at all temperatures of interest; the error in R1/R2 of the synthesized network compared to the required R1/R2 ratio; and the resultant expected frequency error at each temperature. (Author).
Frequency Temperature Compensation Technique for Quartz Crystal Oscillators
Frequency Temperature Compensation Technique for Quartz Crystal Oscillators - read free eBook in online reader or directly download on the web page. Select files or add your book in reader. Download and read online ebook Frequency Temperature Compensation Technique for Quartz Crystal Oscillators write by Darrell E. Newell. This book was released on 1971. Frequency Temperature Compensation Technique for Quartz Crystal Oscillators available in PDF, EPUB and Kindle. The purpose of the project was to advance frequency temperature compensation techniques for stabilities of plus or minus 2 x 10 to the minus 7th power (Group 1) and plus or minus 5 x 10 to the minus 8th power (Group 2) over their operating ambient temperature ranges. It is the object of the work to simplify frequency temperature compensation networks and associated compensation procedures such as to realize a significant unit cost reduction. The report discusses the crystal specification selected. The difficulties encountered with the network voltage-temperature retrace, are discussed. A schematic and test results of a special test unit are shown. General performance on sample units are also discussed. A general segmented network compensation procedure is included. (Author).
Design and Development of Frequency Temperature Compensated Quartz Crystal Oscillator 0-1227 ()/u
Design and Development of Frequency Temperature Compensated Quartz Crystal Oscillator 0-1227 ()/u - read free eBook in online reader or directly download on the web page. Select files or add your book in reader. Download and read online ebook Design and Development of Frequency Temperature Compensated Quartz Crystal Oscillator 0-1227 ()/u write by C. D. DOMINQUEZ. This book was released on 1965. Design and Development of Frequency Temperature Compensated Quartz Crystal Oscillator 0-1227 ()/u available in PDF, EPUB and Kindle. The need for ovenless quartz crystal oscillators having a deviation less than plus or minus 0.75 parts per million from an absolute frequency over all service conditions, including crystal aging, has been evident for modern communications systems. Knowledge derived from studies on frequecy temperature compensation techniques indicated the feasibility of developing compensated oscillators providing a reduction in both required input power and size over conventional oscillator-oven assemblies. The object of Phase I of this program was to design and fabricate seven exploratory development oscillator models employing such compensation techniques to achieve a frequency stability of less than plus or minus 0.5 ppm over the temperature range of -40C to +65C. This effort was reported in the Phase I Interim Report under this contract. After evaluation of these exploratory models, 18 advanced models were designed and fabricated under Phase II of this program with the same stability over 140C to +75C. This report covers the effort expended and the results obtained during Phase II of this program. The discussion in this report is related to (1) description and test of the Phase II oscillators, (2) design considerations in formulation of Phase II design, (3) component standardization, and (4) overall conclusions and recommendations for this program. (Author).
