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Epson TG-3541CEA crystal oscillator is a reliable choice for high-precision clocks in automotive electronics

  • Apr 03,2025
  • 11 VIEWS

In the rapidly developing process of automotive electronics technology, various complex electronic systems such as intelligent driving assistance, in vehicle communication, power control systems, etc. have put forward extremely strict requirements for the stability, accuracy, and reliability of clock signals. Epson TG-3541CEA is a highly reliable active temperature compensated crystal oscillator that complies with the automotive electronics standard (AEC-Q100). It uses a standard CMOS output crystal oscillator and is a high-performance product specially designed for automotive applications. With its excellent characteristics, it has become a reliable clock cornerstone for the stable operation of automotive electronic subsystems.


The characteristics of Epson TG-3541CEA crystal oscillator in automotive electronics:

1. High frequency stability ensures precise timing

TG-3541CEA has excellent frequency stability, and its frequency deviation can be controlled within a very small range. In automotive electronic systems, precise control of fuel injection and ignition timing by the engine control unit (ECU), as well as accurate synchronization of data transmission by the onboard communication module, all rely on stable clock signals. TG-3541CEA can maintain stable frequency output even in extreme temperature environments ranging from -40 ° C to+125 ° C, ensuring that all components of the system work together under different operating conditions and effectively avoiding functional disorders caused by clock deviations.

2. Low phase noise to ensure signal quality

Low phase noise is another significant advantage of TG-3541CEA. In the high-frequency communication field of automotive electronics, such as 5G-V2X (vehicle to external information exchange) communication, low phase noise clock signals are crucial. Phase noise can cause signal jitter, affecting the accuracy and reliability of data transmission. TG-3541CEA reduces phase noise to extremely low levels through advanced design and manufacturing processes, providing a pure and stable clock reference for in vehicle communication modules, ensuring fast and accurate data transmission between vehicles (V2V) and vehicles and infrastructure (V2I), and helping to achieve efficient intelligent transportation collaboration, improving driving safety and traffic efficiency.

3. High reliability and anti-interference ability
TG-3541CEA has undergone strict AEC-Q200 standard certification and possesses excellent reliability and anti-interference capabilities. Its sturdy packaging structure can effectively resist mechanical vibrations and impacts, ensuring that the crystal oscillator can work stably even when driving on rough roads or encountering unexpected collisions. At the same time, special circuit design and shielding measures make it highly immune to electromagnetic interference. It can maintain stable clock output in strong electromagnetic environments generated by engine ignition systems, on-board electronic devices, etc., ensuring the normal operation of automotive electronic systems and reducing faults and misoperations caused by interference.
4. Compact size and low-power design
With the continuous improvement of the integration of automotive electronic systems, the requirements for the size and power consumption of components are becoming increasingly strict. TG-3541CEA adopts a compact 3.5 × 4.1mm package size, which saves circuit board space and facilitates the miniaturization design of automotive electronic devices. In addition, its low power consumption characteristics have significant advantages in automotive applications, which can reduce the energy consumption of the entire vehicle and extend the service life of the vehicle battery. In new energy vehicles, low-power crystal oscillators help improve battery range, reduce charging frequency, and provide users with a more convenient user experience.



TG-3541CEA application scenarios:

1. Precise clock of intelligent driving assistance system

In advanced driver assistance systems (ADAS), TG-3541CEA provides precise clock synchronization for various sensors and controllers. For example, in automatic emergency braking (AEB) systems, sensors such as cameras and millimeter wave radar require precise time synchronization to obtain accurate information about the surrounding environment of the vehicle. The stable clock signal of TG-3541CEA ensures the consistency of data acquisition and transmission among various sensors, enabling the system to quickly and accurately determine the distance and speed of obstacles ahead, trigger the braking system in a timely manner, and avoid collision accidents. In adaptive cruise control (ACC), precise clock signals ensure that the vehicle can accurately adjust its own speed based on the speed and distance of the preceding vehicle, achieving safe and comfortable following.

2. Reliable guarantee of vehicle communication system

Vehicle communication system is a key link in achieving intelligent transportation. TG-3541CEA is a vehicle communication module that provides a stable clock reference for devices such as Bluetooth, Wi Fi, 5G, etc. Accurate clock synchronization ensures fast and accurate data transmission when vehicles interact with the outside world. In the context of the Internet of Vehicles, vehicles need to receive and send a large amount of traffic information, map data, etc. in real time. The high-performance clock signal of TG-3541CEA ensures the stability and reliability of communication, avoids data loss and delay, and provides drivers with timely and accurate traffic information services, improving driving safety and travel efficiency.

3. Core support for power and chassis control system

In the power system of a car, the engine control unit (ECU) and transmission control unit (TCU) require precise clock signals to coordinate their operation. TG-3541CEA provides a stable clock for the ECU, ensuring precise control over fuel injection, ignition timing, and other aspects of the engine, optimizing engine performance, and improving fuel economy. In chassis control systems, such as electronic stability programs (ESP), active suspension systems, etc., accurate clock signals help various components quickly respond to changes in vehicle posture, achieving stable handling of the vehicle. During high-speed driving or emergency avoidance, the TG-3541CEA's stability clock ensures that the ESP system can quickly adjust the wheel braking force, maintain the vehicle's driving stability, and prevent skidding and loss of control.

4. Stable clock source for automotive instrument panel and infotainment system

The automotive instrument panel and infotainment system require stable clock signals to ensure accurate display and smooth system operation. TG-3541CEA provides precise timing for the tachometer, speedometer, and other indicators on the dashboard, ensuring that drivers can obtain accurate vehicle status information. In information entertainment systems, stable clock signals ensure smooth audio and video playback, as well as fast response of human-machine interaction interfaces.



The Epson TG-3541CEA, with its excellent performance and wide range of application scenarios, has become an indispensable and important component of automotive electronic systems. Under the accelerating trend of intelligent and networked development in the automotive industry, TG-3541CEA will continue to provide reliable clock support for automotive electronics innovation, helping car manufacturers create safer, more efficient, and intelligent automotive products.