Application of quartz crystal in the computer motherboard[ 12-14 09:28 ]

The quartz crystal oscillator is called crystal resonator, referred to as the crystal. The computer motherboard is generally rectangular board, there are a variety of chip oscillator and clock generator. The clock chip composed

Realgiant Crystal Oscillator- -The Heart of Digital Circuit[ 11-29 20:52 ]

We usually say that the crystal resonator is actually by cutting equipment will be cultured were obtained by cutting thin crystal, crystal growth with artificial culture environment, currently on the market the better quality of the Russian growth of crystal.The reason that the crystal is a digital circuit in the heart, because

THE BIGEST DIFFERENCE OF NATRUAL SYNTHETIC[ 11-07 15:24 ]

Quartz crystal, natural or artificial, is a kind of piezoelectric materials. Quartz crystal oscillator is made up of high quality quartz crystal oscillator (resonators) and oscillator circuit. Cut Crystal quality, orientation, structure and crystal oscillator circuit, jointly determine the oscillator performance.

How to quickly learn and choose quartz crystal oscillator？[ 11-07 14:06 ]

How to quickly gain an understanding of the crystal oscillator? Quartz crystal controlled oscillators are divided into four categories: ordinary crystal oscillator (SPXO), voltage-controlled crystal oscillator (VCXO), temperature-compensated crystal oscillator (TCXO) and temperature controlled crystal oscillator (OCXO).

How Oscillators Work?[ 05-12 17:07 ]

To understand how electronic oscillators work, it is helpful to look at examples from the physical world. In this article, you'll learn the basic idea behind oscillators and how they're used in electronics.

What is Crystal Oscillator?[ 05-12 16:53 ]

 　　What is Crystal Oscillator ? 　　A crystal oscillator is an electronic oscillator circuit that uses a piezoelectric resonator, a crystal, as its frequency-determining element. Crystal is the common term used in electronics for the frequency-determini

Traditional crystals vs. MEMS oscillator[ 08-25 15:54 ]

In recent years, the impact of the new product from MEMS oscillator are also affects the semiconductor market development. "Although compared with the traditional crystal oscillator, MEMS oscillator in aspects as delivery cycle, the supply flexibility has more obvious advantages, but it has a little jitter value. At this stage in the high accuracy, high-speed communication or a very good performance of the applications, the noise ratio will still give priority to with traditional crystal oscillator; In more price-conscious, the jitter value market demand is not high, the MEMS oscillator is lik

Diversified application requirements[ 08-25 15:53 ]

Quartz crystal oscillator can be told from the function classification, which could be divided into cspxo standard frequency crystal oscillator, VCXO voltage-controlled crystal oscillator frequency, TCXO temperature compensated crystal oscillator and OCXO temperature crystal oscillator, etc. On the application scope, quartz crystal oscillator is widely used in consumer, communication, industrial, auto electronics industry, and at this stage in all areas of the use of quartz crystal oscillator products are put forward in different requirements.

Entering the high frequency communication fields[ 08-25 15:53 ]

With the development of communication technology, wireless network, combined with advanced audio and video, drive the wireless and wired network transmission quantity increase, the market demand for quartz frequency modules of the high-frequency series of products is continuously improving.

Semiconductor market still occupy the mainstream application with smooth supply and demand[ 08-25 15:50 ]

According to the market Analysis agencies MarketsandMarkets Analysis forecast, the compound growth rate of global demand of quartz module market from 2014 to 2020 is up to about 7.8%. In quartz crystal oscillator section, this year's market is slightly oversupply, but product prices haven't changed much with steady growth in the fall,while the market competition is embodied in the low frequency vibration crystal products online. For a long time, Japanese ,

What is called the spurious frequency effect?[ 08-25 11:56 ]

When the signal level of the spurious frequency is as high as that of the basic frequency, the oscillator will oscillate on the spurious frequency, which is called frequency hopping. The spurious frequency mode is often defined as the resistivity or the suppression ratio regarding the basic frequency. For most oscillators, frequency hopping can be prevented with the resistivity of the basic frequency from 1.5 to 2.0 or the suppression ratio from -6dB to -3dB.

What is the spurious frequency?[ 08-25 11:55 ]

The crystal may have frequency oscillation irrelevant with its fundamental frequency or overtone. These needless frequencies are called spurious frequencies. The spurious frequency effect can be inhibited by changing the wafer size, electrode size or silver content in the crystal production process.

What is the instability?[ 08-25 11:54 ]

The instability of the quartz crystal is the measurement of the frequency change caused by the load capacitance of the wafer. The circuit designer can design a range of operating frequency through changing the load capacitance of the wafer. And the range of operating frequency depends on the crystal instability within the range of specified (changing) load capacitance.

What is the ageing rate of the quartz crystal?[ 08-25 11:53 ]

Ageing means the change of the crystal frequency due to time passing by. Ageing will result in the deviation of the frequency in two different directions. And ageing will cause the overall drift of the frequency of the wafer installed in the oscillator.

What are the AT-Cut and the BT-Cut?[ 08-25 11:52 ]

The behavior of the crystal depends on the preset angle at which the crystal bar is cut into wafers to a great extent. The most popular cutting method is AT-Cut. With the same frequency, the BT-Cut results in thicker cutting than the AT-Cut. Therefore, the cutting of the wafer with higher frequency can be carried out by the BT-Cut.

What will happen to the crystal at a temperature beyond the specified range?[ 08-25 11:51 ]

The operation of the crystal will be impacted at a temperature beyond the specified range. We strongly recommend that such situation should be carefully avoided, otherwise the frequency drift will happen and even the full circuit will have fault in a worse case.

What is the main difference between the frequency tolerance and the frequency stability?[ 08-25 11:50 ]

The frequency stability means the peak deviant between the actual frequency and the reference frequency within the range of operating temperature. The reference frequency is usually the frequency of crystal oscillation at the room temperature. And the frequency stability is usually demonstrated by ppm.

What basic information should you provide when ordering the crystal?[ 08-25 11:48 ]

The basic information usually includes center frequency, cutting type (AT/BT), type, resistance (ESR), frequency tolerance, frequency stability, load capacitance, range of operating temperature, driving power supply, ageing rate, and other relevant parameters.