AT-12.288MAHE-T

AT-12.288MAHE-T Application Field and Working Principle

AT-12.288MAHE-T, also known as the AT-12.288MHz HC49 HE-T, is a quartz crystal manufactured with a “pullability” of ±75 ppm. With its 12.288 MHz crystal oscillator design, AT-12.288MAHE-T operates with a temperature range of -40°C to +85° C and a frequency tolerance of ±100 ppm.

Application Field of AT-12.288MAHE-T

AT-12.288MAHE-T is suitable for a wide range of applications including digital instruments, cordless phones, LCD clock/calendar products, solar powered water heaters and medical equipment. It’s suitable for high frequency digital communication circuits, clock oscillators and timing devices. It can also be used for Temperature Compensated Crystal Oscillator (TCXO) circuit designs.

Working Principle of AT-12.288MAHE-T

The AT-12.288MAHE-T has a hermetically sealed housing and uses the Pullability feature to compensate for temperature drift in quartz crystal oscillators. Pullability enables the user to manage the frequency characteristics of the AT-12.288MHz crystal through adjusting the temperature of the circuit. This is done by applying a voltage to an external resistor which shifts the temperature by a few degrees.

The hermetically sealed housing protects the AT-12.288MAHE-T from dust, solder flux and other environmental factors that could otherwise impair its frequency stability. The AT-12.288MAHE-T also has a high tolerance stability of ±100 ppm which makes it a suitable choice for frequency adjusting applications.

Conclusion

AT-12.288MAHE-T is the perfect choice for a wide range of applications thanks to its temperature stability and frequency tolerance. Its hermetically sealed housing provides environmental protection while its Pullability feature allows users to adjust the frequency characteristics of the AT-12.288MHz crystal by applying a voltage to an external resistor. Its high tolerance stability also makes it suitable for timing devices, clock oscillators and other frequency adjusting applications.