Epson crystal oscillator, pioneer and innovator in the 5G communication era

    In the field of wireless communication, a crystal oscillator outputs frequency signals, which enable intelligent electronic devices to transmit, transfer, and receive data. The execution of all instructions by the MCU in intelligent electronic devices is based on the crystal oscillator, The internal circuit of MCU is combined with crystal oscillator to generate the signal frequency required by MCU. The higher the clock frequency provided by the crystal oscillator, the faster the MCU runs in principle. The sensors built into smart devices transmit various data to the information receiving terminal system through the network. Users can log in to the terminal system to view and achieve remote control. IoT smart devices are connected to the device system through built-in network modules and communication network base stations, and transmit data to the system service center to collect, transmit, and process terminal device data. Based on these characteristics of smart devices, Epson Crystal Company has optimized its products and provided a full range of reliable frequency products for end users to choose from.

    Wi Fi 6 and Wi Fi 6E are the latest concepts proposed in the modern communication field, whose main function is to improve the efficiency of access points in handling multiple devices. Wi Fi 6 solves the biggest challenge and test faced by all Wi Fi networks: the number of devices continues to increase, and its applications are becoming more and more diverse. In order to cope with these challenges, 802.11ax has increased broadband throughput by four times compared to the previous 802.11ac standard. Another benefit of the Wi Fi 6 protocol is that it supports target wake-up time (TWT), keeping devices inactive until it is time to use the scheduling scheme negotiated with the access point to transmit data. As a result, the performance requirements of the corresponding module for the quartz crystal oscillator will also be relatively high, The crystal oscillators used in Wi Fi 6 and Wi Fi 6E applications are generally products with good high temperature resistance, such as the working temperature of each product launched by Epson Crystal Company, and the highest accuracy of these products is 10ppm, and the lowest is 20ppm, indicating that there are also requirements for accuracy. Of course, in addition, products with good performance such as phase noise, jitter, delay, etc. should be selected as much as possible to ensure the stability and integrity of application data transmission.

    Wi Fi technology is mainly used in wireless routers to achieve wireless network functions. So, what frequency of crystal oscillator is usually used in routers? From the packaging perspective, it is mainly 3225 or 2520 surface mount crystal oscillators, with a frequency of basically 40MHz. The old solution used 26MHz crystal oscillators, 16MHz crystal oscillators, and 37.4MHz crystal oscillators. The specific requirements depend on the frequency parameters of Wi Fi chips for crystal oscillators. Epson crystal oscillators can ensure stable reception and rapid processing of network signals by routers without affecting network speed. At the same time, due to the long working cycle of routers, sometimes it may last for several months or years, which places higher demands on the stability of crystal oscillators.

    Epson's imported crystal oscillator products have the characteristics of ± 10ppm high precision and high stability, which can make the router emit strong signals, ensuring the safety and reliability of the product, stabilizing the network speed, reducing network lag and other phenomena. In addition, due to the heat generated by the PCB of the router itself, the aging rate of the crystal oscillator will increase under the premise of continuous temperature growth. Epson crystal oscillator has introduced high-precision wide temperature crystal oscillator based on the characteristics of the router.