402F38433CDR

Crystals

Crystal oscillators are electronic devices that use quartz crystals for the purpose of generating frequency signals. Oscillators are used in a variety of electronic circuits, including watches and time standards, microprocessors and communications systems. Frequency generation is generated by the quartz crystal due to its piezoelectric properties.

402F38433CDR is a series of quartz crystal oscillators manufactured by CMD. These crystallines offer excellent stability and general performance, as well as offering advanced features such as low power consumption, fast start up and versatile features. The 402F38433CDR is currently applied in many different applications such as mobile phone, navigation equipment and others.

402F38433CDR application field and working principle

The 402F38433CDR is primarily applied in mobile phone, navigation equipment and some consumer electronic devices. It has a range of operating temperature ranged from -40°C to +85°C, and output frequency range up to 40MHz. This crystal oscillator works by utilizing the piezoelectric property of quartz, whereby when an electrical field is applied to a quartz crystal, the crystal generates an electrical signal with a frequency related to the strength of the electric field.

In order to achieve this, the quartz crystal is placed between two capacitors. When a voltage is applied, the two capacitors interact with the quartz crystal to make the crystal vibrate at its natural frequency. As the crystal vibrates, it generates an electric field which is then outputted from the oscillator.

The 402F38433CDR utilizes a special technique known as load capacitance trimming, enabling the load capacitance of the oscillator to be tuned, ensuring precise frequency and reduced start-up time. This is done by shorting the load capacitance output pins in order to increase the capacitance, thereby increasing the frequency.

The oscillator also employs special built-in temperature compensators, which dynamically adjust the oscillator’s frequency over a wide temperature range, compensating for any frequency drift due to the ambient temperature changes.

In addition, the oscillator also offers precise frequency tolerance of ±100ppm and long term aging of ±10ppm. This ensures the oscillator maintains precise frequency over a long period of time.

As an advanced quartz crystal oscillator, the 402F38433CDR is capable of providing excellent performance and stability while consuming very low levels of power, making it suitable for modern handheld and battery-powered applications.