Accession Number : ADP001563

Title :   Computer Aided Design and Assembly of Oscillators,

Corporate Author : BELL TELEPHONE LABS INC ALLENTOWN PA

Personal Author(s) : Hall,T. M.

Report Date : 1982

Pagination or Media Count : 6

Abstract : This paper provides an overview of Bell Lab's experience in applying computers to modeling and design; to data acquisition; to data analysis; to component selection; and to other miscellaneous tasks. In the past, quartz crystal oscillators could be modeled most easily using linear circuits models. Although non-linear modes exists (e.g., SPICE, CAPITAL, etc.), they could not be used to make a closed loop analysis of crystal oscillators because of the high Q involved. Recently, however, the WATAND program developed by the University of Waterloo has become available and allows closed-loop non-linear analysis of quartz crystal oscillators. Both linear and non-linear analysis programs are being used at Bell Labs to evaluate new designs with particular attention being paid to the effect of component variations on manufacturability.

Descriptors :   *Frequency, *Control, *Symposia, *Computer aided design, *Crystal oscillators, Models, Assembly, Computers, Measurement, Temperature, Variations, Manufacturing, Production

Distribution Statement : APPROVED FOR PUBLIC RELEASE