CMR309T18.432MABJTR Crystals, Oscillators, Resonators

Crystals: CMR309T18.432MABJTR application field and working principle

Crystals have been used in a variety of different applications for centuries. The most common application of crystals is in time-keeping and frequency-control systems. Crystals are used in clocks, watches and computer oscillators to maintain or adjust the accuracy of their time keeping or frequency control. In recent years, with the development of microelectromechanical systems (MEMS), the use of crystals has extended to sensors, actuators and communication systems.

CMR309T18.432MABJTR is an example of a crystal used in frequency control and oscillator applications. It is a high-precision crystal resonator which provides a highly-stable and consistent frequency output. The resonator is packaged in a 3.2 x 2.5 x 0.5mm SMD (surface mount device) package and is intended for use in a variety of different frequency-control and oscillator applications.

CMR309T18.432MABJTR Application Field

The CMR309T18.432MABJTR crystal is widely used in telecommunications, computing and industrial applications including wireless modems, smart meters, radio equipment, network feed controllers, test and measurement equipment and televisions. It is also used in medical applications such as medication dispensers, heart rate monitors and ultrasound equipment. In addition, the crystal is found in automotive electronics, smart phone and tablet devices, gaming systems and traffic control systems.

CMR309T18.432MABJTR Working Principle

The CMR309T18.432MABJTR crystal consists of two quartz plates, each with a metal electrode on its surface. When an electrical signal is applied to the metal electrodes, the quartz plates vibrate at their resonant frequency. In this case, the resonant frequency is 18.432 MHz. This vibrational frequency is very stable which makes it suitable for frequency control applications. The two metal electrodes are connected together and the output signal is a square wave which has a frequency of 18.432 MHz.

The CMR309T18.432MABJTR crystal is temperature compensated - meaning that its frequency output is not affected by temperature changes. It also features a very low drive level requirement which makes it highly suitable for battery-powered applications. The crystal is hermetically sealed and is rated for operation from -40°C to +85°C.

Conclusion

The CMR309T18.432MABJTR crystal is a high-precision and temperature-compensated crystal resonator used for frequency control and oscillator applications. It is widely used in telecommunications, computing and industrial applications. The crystal’s small size, high stability, low drive level requirement and hermetics sealing make it ideal for applications such as smartphones, medical equipment, vehicular electronics and more.