Open Access Journal

ISSN : 2394 - 6849 (Online)

International Journal of Engineering Research in Electronics and Communication Engineering(IJERECE)

Monthly Journal for Electronics and Communication Engineering

Open Access Journal

International Journal of Engineering Research in Electronics and Communication Engineering(IJERECE)

Monthly Journal for Electronics and Communication Engineering

ISSN : 2394-6849 (Online)

Ultra small package stramtum 3E SMD OCXO

Author : Ambica N 1 Arpitha N D 2 Lavanya N 3 Manasa U K 4 Padma R 5

Date of Publication :20th July 2017

Abstract: Oven controlled crystal oscillator have been widely used in global positioning systems, communications, metering, telemetry control, spectrum, network analyzers and other electronic equipments as a source of time-frequency signal with high precision. OCXO is currently has the highest frequency stability and has the best accuracy in the market. OCXO consists of Quartz Crystal, oscillator circuit, temperature sensor, heat source and oven control circuit. Usually, thermistors are used as the temperature-sensing device. The thermistors sense an ambient temperature variation by a change to a slightly different resistance value. The controller circuitry consists of passive components, and it controls the amount of power generated in the heat source. OCXO use a heater to stabilize the temperature of the crystal at turnover point, thereby stabilizing the oscillating frequency. This design optimization achieves higher stability, even more compact size

Reference :

  1. [1] John Vig, “Quartz Crystal Resonators and Oscillators For Frequency Control and Timing Applications, A Tutorial”, July 2001

    [2] I.V. ABRAMSON, "Recent advances in composite heated quartz resonators intended for high stability mobile OCXOs", Omsk Piezoengineering Co. Ltd. - Omsk, Russia.

    [3] http://www.vectron.com/OCXO-application-note

    [4] http://www.raltron.com/stratum-levels-defined

    [5] http://www.rakon.com

    [6] http://www.4timing.com/stratum3.htm


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