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Crystal Oscillator Circuit

2016-08-08 19:49  
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Simple Crystal Oscillator Circuit Diagram

Crystal oscillator circuitis a simple oscillator circuit when we look at the schematic diagram. A crystal oscillator circuit is nothing but a replacement of an ordinary oscillator network, which is a combination of LC. This simplicity is also reflected in the number of physical components that are very compact, which occupy your printed circuit board. You live alone design the layout of components in such a way as to give the best results.

Based on experience in designing a crystal oscillator, I can say very easily. If it is limited to a curiosity about how acrystal oscillator circuitis working, then the frequency counter is readable display a very stable frequency. Without having to make a PCB, simply by connecting the pin connections between the components involved.

Colpitts Crystal Oscillator Circuit

Colpitts Crystal Oscillator Circuit

However, for optimal results should be required data regarding the technical specifications of the crystal oscillator, and the components involved. You can just download the datasheet the crystal oscillator, and if necessary for the transistor or integrated circuit (IC) as well. In addition, the layout of the components that also affect the quality of the output frequency. Here below are some of the crystal oscillator circuits for practical use.

32.768 KHZ Crystal Oscillator

32.768 KHz Oscillator Circuit with Crystal

32.768 KHz Oscillator Circuit with Crystal

The following oscillator circuit using a crystal to produce 32.768 KHz square wave output, and then fed to a 15 stage binary counter with 1 second square wave output. In the oscillator circuit diagram of the IC using a CMOS inverter 4069, to produce a better waveform, but a single transistor can be used. As a note, if you do not want to buy a 32.768 KHz crystal, can usually be found on a watch or computer mainboard that is damaged or not used anymore.

EM7604, Low Power Crystal Oscillator 32.768 KHz module can also be an option. EM7604 is an advanced low power CMOS circuit intended to be used together with a 32 768 kHz tuning fork crystal as a low-frequency clock oscillator. Except the crystal, no other external components are required. The device combines excellent oscillator stability with very low power consumption. It is guaranteed over a very wide supply voltage and temperature range. In order to Achieve a high-frequency accuracy, the matched crystals should have a ± 20ppm tolerance or tighter.

EM7604 - Low Power Crystal Oscillator 32.768 KHz

EM7604 - Low Power Crystal Oscillator 32.768 KHz

1 MHZ Crystal Oscillator

Crystal oscillator circuitwith the output frequency of 1 MHz as a base frequency of a signal generator using TTL SN7490 decade counter IC. Basis of this frequency will be divided into several lower frequencies through a frequency divider 10 and 2.

1 MHz Oscillator Circuit using Crystal

1 MHz Oscillator Circuit using Crystal

10 MHZ Crystal Oscillator Circuit

10 MHz Crystal Oscillator Circuit

10 MHz Crystal Oscillator Circuit


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