Como Funciona o Cristal de Clock - Na Teoria e na Prática (Vídeo 2)

COURSES TAUGHT BY PROFESSOR VALDENILTON: Basic Electronics Course Level 1 and 2 Online (100% VIDEO) https://go.hotmart.com/S90922297H?dp=1 Digital LCD/LED TV Repair Course (100% PDF) https://technologycursos.wixsite.com/... Transformer Winding Course (100% PDF) https://hotm.art/Curso-de-enrolamento... COURSES TAUGHT BY OTHER PROFESSORS: Basic Electronics Course (focusing on repair) https://hotm.art/Curso-de-eletronica-... Basic Electronics Course (focusing on repair) General Electronics Course https://hotm.art/Curso-de-eletronica-... Cell Phone Repair Course (version 5.0) https://hotm.art/Conserto-de-celular-top Notebook Motherboard Repair Course https://hotm.art/Conserto-de-placa-ma... Voltage Inverter Manufacturing and Repair Course https://hotm.art/Aprenda-a-fazer-inve... Photovoltaic Solar Energy Course https://hotm.art/Curso-energia-solar-... Complete Digital Marketing Course (from scratch) https://hotm.art/Curso-de-Marketing-D... SHARE THIS VIDEO WITH FRIENDS: [Link to YouTube video:    • Como Funciona o Cristal de Clock - Na Teor...  ] SUBSCRIBE TO OUR CHANNEL BY CLICKING THE LINK BELOW:    / @technologycursosoficial   Introduction: Every digital circuit that performs data processing needs clock pulses to determine the pace of the work. These pulses are produced by a device known as a crystal. In this video, you will learn in theory and practice how a clock pulse generator crystal works. Definition: A crystal is a small piece of quartz cut to a specific shape and dimensions that, when polarized by a voltage, allows it to generate sinusoidal pulses with well-defined frequency and amplitude. Application area: The crystal oscillator is used in all digital electronic circuits that have data processing ICs. In addition to crystals, clock pulses can be generated using ceramic resonators and integrated circuits, such as the 555, for example. Operating Principle: When polarized by a voltage, the crystal oscillates, generating a fixed and precise frequency. This frequency is applied to the oscillator circuit of the IC that polarized the crystal. When the frequency enters the IC through the XIN pin, it triggers the internal oscillator, which in turn amplifies the level of this frequency and returns it to the crystal through the XOUT pin. In this way, the crystal and the oscillator circuit resonate, vibrating at the same frequency. This resonant frequency is used to synchronize both the IC connected to the crystal and is also sent to synchronize other ICs. Every crystal indicates its oscillation frequency on its casing, either directly or indirectly. In the direct form, the indication is made by engraving the oscillation frequency value, which can be in kHz or MHz. The frequency of crystals may be accompanied by one zero (0), two zeros (00), three zeros (000), and even four zeros (0000). The greater the number of zeros, the better the precision of the crystal oscillator. To test the crystal, it is necessary to verify that both pins are polarized with voltage, which can be easily done with a digital multimeter. To check the waveform, frequency, amplitude, and DC level, a digital oscilloscope is necessary, which allows visualization of all these parameters. Never replace a crystal oscillator with one of a different frequency, otherwise the electronic circuit will not function and will remain inoperative. Conclusion: I hope that, by the end of this lesson, you have understood how the clock crystal works both in theory and in practice so that you can solve problems on electronic boards related to this component. Hello, I am Prof. Valdenilton, Technical Coordinator of the Electronics courses taught by Technology Cursos. I love transforming people's lives through teaching. My goal is to teach people like you how to repair the electronic equipment you love, helping in every way possible. INFORMATION: Our Website: https://technologycursos.wix.com/tech... Business Contact: [email protected] WhatsApp Support: (82) 9 8706-9200