SIT1602BI-21-25S-19.200000G

Oscillator

Oscillator refers to an electronic device or circuit used to generate an alternating electrical signal without external excitation, and can accurately output a stable regularly alternating signal. As an important part of modern electronic circuit, oscillator can be used for generating clock signal, measuring frequency, radio disturbance suppression, mixing signals, and microwave oscillation. The oscillator is usually composed of a filter, an amplifier, an amplifier frequency control circuit, a feedback circuit, a feedback network and an amplifier.

SIT1602BI-21-25S-19.200000G application field and working principle

The quartz oscillator SIT1602BI-21-25S-19.200000Gis mainly used in personal computers and other fields of information processing systems. It is suitable for single-chip microcomputer system clock signal timing, and can adjust the power supply voltage within the specified range. It can also output stable high-precision timing signals in order to ensure the accuracy of electronic device operations.

For SIT1602BI-21-25S-19.200000G, the frequency is generated by quartz crystal for the first time, and then frequency compensation technology is used to obtain the desired frequency. The oscillation circuit is composed of an oscillating quartz crystal device, a divider, a filter component and a transistor. The filter component is composed of a capacitor and a resistor. The oscillation frequency of the quartz crystal is determined by its thickness, width, and length. The quartz crystal oscillator works on the principle of piezoelectricity.

When an AC voltage of a certain frequency is applied to the quartz crystal, the quartz crystal will vibrate in resonance. A reverse voltage of the same frequency will be generated at its electrodes, and the output voltage can reach several hundred microvolts. This voltage is amplified by an amplifier to obtain a timing pulse. The amplitude of the timing pulse will increase with the increase of the power supply voltage, and the peak-to-peak amplitude of the pulse will slowly change. This is a necessary factor for the lock-in of the subsequent frequency division circuit. The circuit part of the quartz crystal oscillator is actually a Colpitts oscillator, and the quartz crystal occupies the role of the resonant circuit.

The SIT1602BI-21-25S-19.200000G quartz oscillator features excellent frequency stability and long-term aging stability, and provides a good guarantee for the accuracy and stability of the system clock. It can provide stable clock signals for computers, digital cameras, mobile phones and other systems, and has a wide application in information processing industry.