How does the Epson SG-8018CE crystal oscillator ensure its high-precision frequency?

Oct 28,2024
34 VIEWS

Epson programmable crystal oscillator SG-8018CE mainly ensures its high-precision frequency through the following aspects:

1. Advanced quartz crystal technology:

High quality crystal materials: Epson used high-quality quartz crystal materials in the manufacturing of SG-8018CE. Quartz crystals have very stable physical properties and produce stable vibration frequencies when subjected to mechanical stress or electric fields. This stable physical property is the basis for crystal oscillators to generate high-precision frequencies. Moreover, Epson has strict screening and control over the purity and crystal structure of quartz crystal materials, ensuring the high quality of crystal materials and guaranteeing frequency accuracy from the source.

Exquisite crystal processing technology: In the process of crystal processing, Epson adopts advanced processing technology and high-precision processing equipment. For example, by precisely controlling the cutting, grinding, polishing and other process steps, the size, shape, surface flatness and other parameters of quartz crystals can reach extremely high precision standards. This can ensure the frequency stability and consistency of the crystal during vibration, thereby improving the frequency accuracy of the crystal oscillator.

2.Accurate frequency adjustment technology:

Programmable technology: SG-8018CE is a programmable crystal oscillator, which means that the frequency of the crystal oscillator can be precisely adjusted through programming. Epson has equipped the crystal oscillator with specialized programming tools and software. Engineers can write the required frequency parameters into the crystal oscillator according to actual needs, achieving precise frequency setting. This programmable technology enables SG-8018CE to meet high-precision frequency requirements in different application scenarios.

High resolution frequency adjustment: This crystal oscillator has high-resolution frequency adjustment capability, with a frequency adjustment accuracy of up to 1ppm (parts per million). This means that very fine frequency adjustment can be achieved within the frequency range of 0.67MHz to 170MHz, ensuring high precision of the output frequency.

3.Stable circuit design:

Low noise power supply circuit: The power supply has a significant impact on the frequency stability of the crystal oscillator. The SG-8018CE adopts a low-noise power circuit design, which can provide stable and pure power for the crystal oscillator. This can avoid the interference of power supply noise on the frequency of the crystal oscillator and ensure the frequency stability of the crystal oscillator during operation.

Optimized oscillation circuit: The oscillation circuit of a crystal oscillator is the core part that generates frequency. Epson has optimized the oscillation circuit of SG-8018CE by using high-quality electronic components and a reasonable circuit layout, enabling the oscillation circuit to generate stable and reliable oscillation signals. Meanwhile, by precise adjustment and matching of circuit parameters, the frequency accuracy of the crystal oscillator has been further improved.

4.Strict quality control and testing:

Quality inspection during the production process: Epson has implemented strict quality control measures in the production process of SG-8018CE. Strict testing and monitoring have been carried out for every production process to ensure that the quality of the products meets the standards. For example, strict inspections have been conducted on the quality of crystal materials, the performance of circuit components, welding processes, and other aspects to promptly identify and eliminate factors that may affect frequency accuracy.

Comprehensive performance testing: Before the product leaves the factory, Epson will conduct comprehensive performance testing on SG-8018CE, including frequency accuracy testing, temperature stability testing, vibration testing, etc. Only after passing strict testing to ensure that the product's performance meets the standards, will the product be delivered to the customer. This strict quality control and testing system ensures the high-precision frequency performance of SG-8018CE.