Taijing Technology's 55.2M High-Frequency Thermal Sensitive Crystal Is Mass-Produced for Vehicles, Empowering UWB Digital Keys for Intelligent Travel
Recently, the 55.2M high-frequency thermal sensitive crystal resonator independently developed by Taijing Technology has made substantial commercial progress in the field of Ultra Wide Band (UWB) digital keys and has been recognized by domestic first tier car companies. It has been officially installed in a high-end new energy vehicle recently launched by a domestic brand host factory. Among them, the 55.2M high-frequency thermosensitive crystal uses photolithography chips as the main material, and its ultra-high performance and consistency significantly ensure the safety of intelligent travel.

UWB digital key is based on ultra wideband wireless communication technology, using extremely narrow pulses to transmit data, achieving high-precision time, space, and energy transmission. This technology not only provides high-precision positioning and powerful data transmission capabilities, but also ensures the security and reliability of data transmission. The UWB digital key communicates with the vehicle's built-in UWB receiver to achieve functions such as unlocking, locking, starting, and turning off the vehicle.
UWB digital keys cannot do without the support of thermal sensitive crystals. The high precision and stability of thermal sensitive crystals combined with chips are crucial to ensuring the accuracy and reliability of data transmission.

The 55.2MHz thermal sensitive crystal uses photolithography chips as the main material, and the photolithography chips adopt quartz MEMS technology. Through a precise optical system, the photoresist is exposed, developed, and other processes, forming highly accurate microstructures through wet and dry etching, improving the performance and consistency of the crystal resonator. This is particularly important for electronic devices that require high-precision clock signals, such as automotive electronics, industrial controls, smartphones, base stations, satellite communication equipment, etc.
Thermistor crystals are mainly based on the effect of temperature on crystal frequency, and are compensated for this effect through specific chip circuit design to maintain high stability of output frequency. Thermistor crystal oscillator adds thermistor on the basis of ordinary passive crystal oscillator, enabling the thermistor crystal to sense changes in environmental temperature. Thermistor crystals achieve automatic sensing and compensation of environmental temperature changes by combining thermistor and chip functions.

In recent years, Taijing Technology has continuously increased its research and development investment, actively expanded the research and application boundaries of automotive electronic components, and is committed to providing solid support for the development of the automotive industry chain. It has demonstrated a comprehensive strategic layout and sustained technological innovation in the field of automotive electronics. The company's automotive product line has achieved development and expansion from passive crystal oscillators to active crystal oscillators. The corresponding main products include various packaging sizes of MHz high-frequency crystal oscillators, k series (32.768kHz) crystal oscillators, OSC clock oscillators, thermal crystal oscillators, TCXO temperature compensated oscillators, etc. It accelerates market introduction from vehicle control, voice entertainment systems, V2X wireless connections, assisted driving, car lighting, window control, etc., meeting the matching needs of different automotive application scenarios from non safety to safety.
In the future, Taijing Technology will work together with industry partners to build a more advanced and efficient new automotive ecosystem, promote the localization process of automotive grade products, and contribute to the prosperity and progress of the industry.





