Application of Epson SG-8200CJ Programmable Crystal Oscillator in Automotive Electronics Field

With the rapid development of automotive technology, the role of electronic control systems in vehicles is becoming increasingly important, especially in fields such as autonomous driving, in vehicle infotainment systems (IVI), advanced driver assistance systems (ADAS), etc. A stable and accurate clock source has become the key to ensuring the efficient operation of the system. The Epson SG-8200CJ programmable crystal oscillator has demonstrated excellent performance in the field of automotive electronics due to its high stability, low power consumption, wide temperature adaptability, and programmable frequency, making it an ideal clock source choice for intelligent and electronic vehicles.

The characteristics of SG-8200CJ programmable crystal oscillator;

• Frequency range : 1.2 MHz to 170 MHz
• Supply voltage : 1.62 V to 3.63 V
• Function : Output enable(OE/OE) or Standby(ST/ST)
• Frequency tolerance, operating temperature : ±50 × 10 ^-6 (-40°C to +125°C)
• Phase jitter : 1.1 ps Typ. (fo = 125 MHz)
• Package : 2.0 × 1.6 (mm)
• PLL technology to enable short lead time

Automotive infotainment system: provides stable clock signals for car audio, navigation systems, car multimedia and other devices, ensuring smooth audio and video playback and accurate navigation positioning. For example, when playing high-definition audio or video files, its low jitter characteristics can effectively reduce audio and video distortion, providing a better audio-visual experience; In navigation systems, accurate clock signals help improve positioning accuracy and real-time updates of map data

Advanced Driver Assistance Systems (ADAS): In functions such as adaptive cruise control, lane departure warning, automatic emergency braking, etc., this crystal oscillator can provide accurate clock references for sensors, controllers, etc., ensuring synchronous operation between various components, thereby improving the reliability and response speed of the entire system. Sensors such as LiDAR, millimeter wave radar, and cameras require precise clock signals to perceive the surrounding environment in real-time. The SG-8200CJ, with its high precision and low jitter characteristics, ensures that these sensors can accurately capture information such as distance, speed, and angle between the vehicle and obstacles, providing reliable data support for functions such as automatic emergency braking, adaptive cruise control, and lane keeping assistance. It is like equipping the car with a pair of sharp "eyes", greatly improving driving safety.

The automotive infotainment system also relies on the SG-8200CJ. Whether it is high-definition audio playback, video streaming transmission, or precise positioning of navigation functions, a stable clock source is needed to ensure stability. This crystal oscillator can effectively reduce audio and video distortion, provide a smooth audio-visual experience, while ensuring real-time updates of navigation map data and accuracy of route planning, allowing drivers to enjoy rich entertainment content while smoothly reaching their destination during the journey.

Automotive body control system: A microcontroller used to control the electronic devices of the car, such as windows, door locks, rearview mirrors, and air conditioning, providing a clock to ensure the normal operation and coordinated work of these devices. For example, in an automatic air conditioning system, precise clock signals can help the controller adjust temperature and wind speed more accurately.