Questions & Answers on Crystal Oscillator

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What is Frequency Stability?

Oct 10, 2018

Frequency stability represents the variation of output frequency of a crystal oscillator due to external conditions like temperature variation, voltage variation, output load variation, and frequency ...read more

What is a TCXO?

Crystal Oscillators

Editorial Team

Apr 10, 2018

A TCXO or a Temperature Compensated Crystal Oscillator is a crystal oscillator specially designed to operate in high-temperature environments. The oscillation frequency of a regular crystal oscillator...read more

TCXO vs OCXO

Crystal Oscillators

Editorial Team

Mar 23, 2018

The oscillation frequency of a crystal changes as temperature varies. Both TCXOs (Temperature Compensated Crystal Oscillators) and OCXOs (Oven Controlled Crystal Oscillators) are crystal oscillators w...read more

What is Jitter in a Crystal Oscillator?

Crystal Oscillators

Editorial Team

Nov 10, 2018

Jitter is a method of describing the stability of an oscillator in the Time Domain. It combines all the noise sources together and shows their effect with respect to time.Let us consider a simple puls...read more

What is the difference between a VCXO and a VCO?

Crystal Oscillators

Editorial Team

Mar 29, 2018

A VCO or Voltage Controlled Oscillator is an electronic oscillator whose oscillating/output frequency can be controlled by a DC control voltage. The oscillating/output frequency of the VCO can be modi...read more

What is an OCXO?

Crystal Oscillators

Roland Teoh

Dynamic Engineers

An OCXO is an "Oven Controlled Crystal Oscillator", which is a kind of crystal oscillator that has higher frequency stability. OCXOs might be more expensive and larger than other types of cr...read more

What is a VCTCXO?

Crystal Oscillators RF Basics

Editorial Team

Apr 25, 2018

A VCTCXO is a Voltage Controlled Temperature Compensated Crystal Oscillator. This is the same as a TCVCXO i.e Temperature Compensated VCXO. Click here to read about TCVCXO's.

What is a DCXO?

Crystal Oscillators

Editorial Team

Nov 27, 2021

Digital Controlled Crystal Oscillators (DCXOs) are crystal oscillators whose output/oscillation frequency can be controlled digitally i.e. the output frequency generation is controlled by a x-bit bina...read more

What is Aging of a Crystal Oscillator?

Crystal Oscillators

Editorial Team

Nov 10, 2018

A small change in the frequency of a quartz crystal over a period of time is called as aging. This effect is always kept in consideration whenever a crystal is used for an application.Aging in crystal...read more

What is a VCXO?

Crystal Oscillators

Editorial Team

Apr 10, 2018

A VCXO is a Voltage Controlled Crystal Oscillator whose output/oscillating frequency changes when a control voltage is applied to it under a constant supply voltage. A VCXO consists of a crystal oscil...read more

What is Absolute Pulling Range?

Crystal Oscillators

Editorial Team

Feb 8, 2018

A VCXO is a Crystal Oscillator that varies output frequency based on an applied control voltage. The maximum variation in VCXO's output frequency over changes in control voltage under a constant s...read more

The Beginner’s Guide to GPS Disciplined Oscillators (GPSDO)

Crystal Oscillators

Robert Rutkowski

Bliley Technologies

The term “GPSDO” is becoming more popular as it’s becoming a more reliable and accurate source of timing for many different applications including GNSS and GPS applications.GPS Disci...read more

What is a TCVCXO?

Crystal Oscillators

Editorial Team

Apr 25, 2018

A TCVCXO is a Temperature Compensated Voltage Controlled Crystal Oscillator. Temperature compensated means that the resonant/oscillation frequency of this crystal oscillator is less affected by a rise...read more

5G Frequency Bands in Italy

5G 5G Frequency Bands

Editorial Team

Jul 22, 2020

Italy has allocated the following frequency bands for 5G:AGCOM held the spectrum auctions (for 700 MHz, 3.6-3.8 GHz and 26 GHz) in October 2018. Current 5G service providers in Italy are: Teleco...read more

The Ultimate Guide to Understanding Phase Noise

Crystal Oscillators RF Basics

Robert Rutkowski

Feb 8, 2017

What is Phase Noise?To begin understanding phase noise, here are some basic definitions of Phase Noise and what is known as Jitter. Phase Noise- The frequency domain representation of ...read more

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