The microprocessor compensated crystal oscillator-new developments

Author

Jackson, Edward ; Rose, Brian

Author_Institution

Q-Tech. Corp., Culver-City, CA, USA

Volume

1

fYear

1999

fDate

1999

Firstpage

376

Abstract

New developments of the microprocessor controlled crystal oscillator (MCXO) include a factor-of-four size reduction, the addition of a second direct digital synthesizer (DDS) for frequency flexibility, development of new, smaller master crystals, and a major improvement of the output spectrum. The new design retains the basic features of the MCXO-a frequency temperature stability specification of +/- 3E-8, over -55 to +85 degrees centigrade, low power and fast warm-up time

Keywords

compensation; crystal oscillators; direct digital synthesis; frequency stability; low-power electronics; -55 to 85 degC; direct digital synthesizer; frequency flexibility; frequency temperature stability specification; low power electronics; microprocessor compensated crystal oscillator; output spectrum; size reduction; warm-up time; Cities and towns; Filtering; Frequency synthesizers; Microprocessors; Oscillators; Phase locked loops; Phase noise; Smoothing methods; Stability; Temperature sensors;

fLanguage

English

Publisher

ieee

Conference_Titel

Frequency and Time Forum, 1999 and the IEEE International Frequency Control Symposium, 1999., Proceedings of the 1999 Joint Meeting of the European

Conference_Location

Besancon

ISSN

1075-6787

Print_ISBN

0-7803-5400-1

Type

conf

DOI

10.1109/FREQ.1999.840785

Filename

840785