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A new digitally temperature compensated crystal oscillator for a mobile telephone system

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3 Author(s)
Miyayama, T. ; Toyo Commun. Equipment Co. Ltd., Kanagawa, Japan ; Ikeda, Y. ; Okano, S.

A detailed description is given of the DTCXO designed for mobile telephone system applications for which it is essential to have a narrower channel spacing. The authors have used a polynomial interpolation technique to achieve a DTCXO with a high frequency-temperature stability within ±0.3 p.p.m. The compact (4 cm3), low-power-consumption (15 mW) DTCXO has been developed by using a flat-packaged CMOS gate array in the circuit of the digital unit

Published in:

Frequency Control Symposium, 1988., Proceedings of the 42nd Annual

Date of Conference:

1-3 Jun 1988