Voltage Controlled Crystal Oscillator (VCXO) Market Overview, Cost Structure Analysis and Forecast to 2021

Global Voltage Controlled Crystal Oscillator (VCXO) Market is segmented on the basis of product type, application, and region. A Voltage controlled crystal oscillator, VCXO is an oscillator whose frequency can be changed by applying voltage to the VCXO. A Varactor diode in series with the crystal is used as the means of controlling the oscillator frequency. A change in voltage causes a change in the capacitance of the varactor diode, which changes the CL of the crystal resulting in change of the frequency of the oscillator.

The varactor diode is a semiconductor device that is designed to act as a variable capacitor when a voltage is applied to it. When used in series with a crystal, changing the control voltage causes the diode capacitance to change. This change in capacitance causes the total crystal load change and then causes a change in crystal frequency. This change in frequency is known as deviation.

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The output frequency of which is controlled by adding an external control voltage via a frequency control input on a variable capacitance component such as a varactor diode connected in parallel to a load capacitance (CL). This can be accomplished in a simple clock or sinewave crystal oscillator, a TCXO, or an oven controlled type.

VCXOs are used for fine adjustment of the operating frequency and are normally used in conjunction with a phase locked loop. The frequency of oscillation of a VCXO can typically be varied by up to a 150 parts per million (ppm) because the high Q factor of the crystals allows pulling over a small range of frequency. VCXOs are used in some Spread Spectrum, RF and wireless systems for clock recovery circuits and other applications where frequency stability and low phase noise is very important. Design considerations include tuning linearity, tuning bandwidth, tuning range, output level stability over tuning, post tuning drift, phase noise, and stability.

Voltage Controlled Crystal Oscillator (VCXO) Market is classified, by product type Output PECL, Output CMOS, Output SINEWAVE. Output PECL – consists of a differential pair that drives a pair of emitter followers. The output emitter followers should operate in the active region, with DC current flowing at all times. This increases switching speeds and helps maintain fast turn-off times. The proper termination for a PECL output is 50Ω to (VCC–2V). Output CMOS – technology is the dominant semiconductor technology for microprocessors, memories and application specific integrated circuits (ASICs). Voltage Controlled Crystal Oscillator (VCXO) Market is classified by application into Equipments, Industrial Instruments, and others.

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Voltage Controlled Crystal Oscillator (VCXO) Market is segmented geographically into North America, Europe (Eastern Europe, Western Europe), Asia Pacific, Latin America, Middle East and Africa. Key market players in the Voltage Controlled Crystal Oscillator (VCXO) Market include Vectron, Crystek, NDK, Bliley Technologies Inc., Abracon, CTS, Pletronics, Rakon, Microchip, Epson, IDT.