402F540XXCAR

402F540XXCAR Application Field and Working Principle

The 402F540XXCAR is an all-purpose voltage-controlled crystal unit designed for a wide variety of applications. It is a unit containing a crystal oscillator circuit, a voltage regulator, and a microcomputer that allows the voltage of the crystal to be adjustably regulated. It is commonly used in high-end aerospace, industrial and consumer applications.

Features

• Compact size
• Wide input range (input from 0.1V to 15V)
• Low noise
• High resolution
• High stability

Applications

• Robotics
• Unmanned aerial vehicles
• Automated optical inspection systems
• Radar systems
• Communication systems
• Navigation systems
• Power supplies

Working Principle

The 402F540XXCAR operates by detecting an AC voltage that is applied to the crystal and then regulating the voltage. The oscillator circuit consists of a pair of MOSFET transistors and a number of resistors in a Buck Regulator configuration. The Buck regulator is a power-conversion circuit in which the voltage across the crystal is continually adjusted to maintain the crystal\'s operating frequency. The microcomputer in the unit monitors the output of the oscillator circuit and makes the necessary adjustments to the voltage in order to maintain the crystal\'s frequency.

Conclusion

The 402F540XXCAR is a versatile and reliable voltage-controlled crystal unit capable of operating in a variety of conditions and applications. Its built-in microprocessor and wide adjustable range make it ideal for a wide range of applications, including robotics, UAVs, optical inspection systems, radar systems, communication systems, and power supplies. By precisely regulating the voltage across the crystal, the 402F540XXCAR can provide reliable, stable frequency control in a variety of conditions.