At the very beginning of this article we will try to know how Crystal oscillator works. This can be considered as an electrical circuit. It mainly provides the electrical oscillation. But it is based on the outward characteristic of crystal. You should know that it also maintains a particular frequency. You should have idea regarding the position of the oscillator. You would come to see this in the circuit feedback loop. Here in this article we will try to focus on the prime features of the oscillator. You just need to read this piece of writing very carefully.
This can be regarded as the mother of all communication system electronic devices. It mainly works with the systems that depend on the coordination and measurement. These oscillators are mainly used to produce stability to time frequency generator. Simultaneously it produces pilot signal for navigation system and electronic communication.
They also provide the clock signals based on the processing equipment. This also ensures reference signals for some purpose systems. The stability and the accuracy of an oscillator depend on the application. Everybody expect this. There is no doubt that it offers different ranges that include 1000 PPM for the microprocessor clock. You can avail crystal oscillators at FrequencyManagement.com at market competitive rates.
So, we can assume the prime features of the crystal oscillators from the above mentioned paragraph. The circuit mainly is dependent on two things or condition. Primarily the gain loop should be greater than losses across the oscillator loop. We can call it equal to unity. Secondly the there must be a resemblance between loop phase shift of 360 degrees. You need to keep this mind.
Here in the next part of this article we will try to highlight some points that will help you understanding the testing procedure of Crystal oscillator module. We will discuss this point wise.
- You need to apply power for testing the Rig. It will ensure that the green LED is lit. You need to be very careful regarding this.
- The ground must be common. The testing Ring ground and the DUT are connected together. You should keep this point in your mind carefully. Otherwise you won’t get the result properly.
- Now after doing this you will have to connect t the yellow test lead with the clock out put which is supposed to be of the DUT.
- You need to press the momentary contact switch in some special case.
- You should not tap the modulator directly as there might be fracture in side the device. You shouldn’t forget this point.
- If you want to reset the DUT then you definitely need to press the momentary contact switch. Then you need to repeat the above mentioned action.
From the above mentioned points and discussion we have come to know many things about the Crystal oscillators. Moreover we have highlighted several aspects of this in this article. You would come to know about the function of this from this passage.