Epson Spreadtrum Crystal oscillator technology reduces EMI electromagnetic interference to ensure high reliability operation of SSD solid state drives

     How does Epson's frequency oscillator technology ensure the high reliability operation of SSD solid-state drives by reducing EMI electromagnetic interference. Solid State Drives, also known as SSDs, are hard drives made from an array of solid-state electronic storage chips. They consist of a control unit and storage units (FLASH chips, DRAM chips). Widely used in military, automotive, industrial control, video surveillance, network monitoring, network terminals, power, medical, aviation, navigation equipment and other fields. The working temperature range of solid-state drive chips is very wide, with commercial products (0~70 ℃) and industrial products (-40~85 ℃). As a metronome for storage and backup of solid-state drives, the importance of crystal oscillators is beyond doubt. Previously, traditional 3225 quartz crystal oscillators were commonly used in solid-state drives. So why is the spread spectrum crystal oscillator technology more suitable for SSD solid-state drives? How does the frequency display crystal oscillator technology ensure the high reliability operation of SSD solid-state drives by reducing EMI electromagnetic interference?

    The Epson Extended Frequency Crystal SG-9101 series is a programmable crystal oscillator that reduces EMI electromagnetic interference by adjusting the clock frequency. The frequency programmable range is 0.67MHz~170MHz (1ppm per step), and the extended frequency range is ± 0.25%~± 4%. The SG-9101 new product offers a wider operating temperature range and reduces current consumption by 50%. When using the SG-9101, it can be optionally paired with an existing SG Writer II dedicated burner to define the center frequency of the SG-9101, which can reduce electromagnetic interference (EMI) and spread spectrum crystal oscillator. The consumption current of SG-9101 frequency quartz oscillator has been significantly reduced by 75% compared to current products. The spread spectrum clock crystal oscillator of SG-9101 provides several types of modulation methods, which can achieve modulation values of ± 0.5%, ± 0.75%, ± 1%, ± 1.5%, ± 2%, and 0.25%. Practice has shown that the introduction of spread spectrum clock crystal oscillator modulation results in minimal clock signal jitter. SG-9101 effectively reduces the electromagnetic radiation power by dynamically changing the clock frequency, reduces the impact of EMI electromagnetic interference, and thus solves the problem of EMC radiation exceeding the standard, as shown in the following figure:

    When used for SSD solid state drives, the SG-9101 series frequency oscillator has higher stability and reliability than traditional quartz oscillators, and can also meet fast delivery cycles. Moreover, Epson frequency oscillator has excellent impact resistance and shock resistance, which greatly improves the impact and vibration resistance of solid-state drives. At the same time, for the application of SSD solid state drives, Epson's frequency display crystal oscillator technology can also save more PCB space. In addition to the commonly used 3225 package crystal oscillator, the 2520 and 2016 packages can also work stably. The SG-9101 series crystal oscillator can eliminate EMI interference between different subsystems by adjusting the clock spectrum, ensuring a reduced failure rate of solid-state drives and ensuring high-speed and reliable operation of solid-state drives.