402F54012ILT

402F54012ILT Application Field and Working Principle

Crystal oscillators are widely used in various electronic circuits, especially radio related frequency-controlled clock circuits. 402F54012ILT crystal oscillators, as a specific type of crystal oscillator, have many advantages in their application.

Application Field

402F54012ILT crystal oscillators are mainly used in frequency and timing control circuits of various radio communication systems, such as mobile phones, satellite navigation, radio and television broadcasting, radar, GSM communication, and 802.11b WiFi equipment. They also can be used for frequency-controlled clock circuits of digital clocks, digital cameras, digital calculators, and digital sound systems.

Working Principle

402F54012ILT crystal oscillator works on the principle of quartz crystal resonator. The quartz crystal is cut in a specific shape and mounted in a package. When an alternating electrical current is applied to it, the shape of the crystal will cause the crystal to vibrate at a frequency determined by its physical characteristics. The oscillator frequency is determined by the constants of capacitance and inductance of the crystal and its mechanical parameters. When the frequency of the applied current is the same as the frequency of the crystal, the crystal will vibrate at its resonance frequency, so that a harmonic oscillation is produced.

The resonant frequency of the 402F54012ILT crystal oscillator is determined by its structure and size, so that it can be used as a device to generate a precise frequency. The frequency is usually designed to be close to the required frequency. After final assembly, the frequency of the oscillator is adjusted a little bit through a frequency adjustment process, so that the adjusted oscillator output has a precise operating frequency.