The Importance of Crystal Oscillator in SSD, This Article will Let You Understand in Seconds!

PublishTime： 2024-03-15 Article Source：YXC News

Solid-state drives (SSDs) have become the mainstream device for modern computer storage. Compared with traditional mechanical hard drives, SSDs have higher read and write speeds, lower power consumption, and higher durability. Of course, the package size is also becoming smaller. As SSD capacity continues to grow and the performance requirements of application scenarios continue to improve, its crystal oscillator requirements are becoming more and more complex.

The role of crystal oscillator in SSD The main control chip, as the "brain" of SSD, is responsible for core tasks such as host interaction, protocol analysis and execution, data reading and writing, data error correction, and data management. It not only directly affects the performance of the entire system, but also ensures ensure the safety and stability of the business. In addition, if you choose an FPGA chip solution, it will be paired with a Differential crystal oscillator, which requires more stable performance and is suitable for high-speed data transmission and low-power applications.

SSD crystal oscillator selection requirements: good stability, good shock and drop resistance, high temperature resistance, small size; the conventionally selected package size is 3225/2016; because the PCB board will also generate heat, its working temperature must meet the industrial grade The above temperature range (-40~+85℃/-40~+125℃) has the advantages of high reliability and high temperature resistance; Common frequency points: 25MHz, 50MHz, 100MHz, 200MHz;

YXC product recommendation For different SSD application scenarios and needs, Yangxing Technology provides various types of crystal oscillator products to meet different performance requirements. The following is Yangxing Technology’s crystal oscillator recommendation for SSD solid state drives:

1. Passive crystal oscillator: The product parameters and advantages of YSX321SL and YSX211SL are as follows:

* Features miniaturization and high precision, meeting the current popular miniaturization market (such as M.2 hard drives)

* High stability, total temperature difference ±20PPM, the higher the accuracy, the more stable it is;

* SMD metal package has excellent environmental resistance, which helps reduce electromagnetic interference effects * Better temperature performance, reaching industrial-grade temperatures

Fig.1

2. Active crystal oscillator: YS0110TR and YSO150HT product parameters and advantages are as follows:

* The frequency range can support 1~125MHz, meeting the frequency requirements of current mainstream solutions;

* The working voltage adopts "wide voltage (1.8V~3.3V) technology", covering the current mainstream voltage requirements

* With high reliability and stability, the accuracy can reach ±10PPM;

* With high temperature resistance, the working temperature supports -40~+85℃/-40~+105℃/-40~+125℃; multiple temperatures are available to avoid the problem of excessive temperature caused by PBC board heating.

Fig.2

3. Differential crystal oscillator: YS0230LR product parameters and advantages and features are as follows:

* Available in a variety of package sizes, 2520/3225/5032/7050 and other packages are available to flexibly meet selection requirements. Stability: Graphics cards require a stable clock signal to synchronize the operation of various internal components and ensure the accuracy of data transfer and graphics rendering. Therefore, the crystal oscillator must provide a continuous and stable oscillation signal (frequency stability reaches ±50PPM (-40~85℃) within the full temperature range) to ensure the normal operation of the graphics card.

* Anti-interference ability: There are various electromagnetic interference sources in the graphics card working environment, such as power supply, current and other electronic equipment. The metal package surface design has certain anti-interference capabilities, supports LVDS/LVPCECL/HCSL differential signal output, can easily identify small signals, and can handle bipolar signals calmly and accurately.

* Reliability: The graphics card is a device that runs for a long time. Power consumption affects the noise level and chassis temperature during use. Greater power consumption will not only consume more power, but also cause the chassis temperature to rise rapidly, making the graphics card unable to function for a long time. Keeping it at a high frequency can easily cause a black screen or even shut down. The power consumption of the active crystal oscillator is very low (40mA max), which can save the energy consumption of electronic equipment and extend its service life.

* Low jitter: Differential has low phase jitter noise characteristics (0.1pS typ.), which can reduce signal distortion and jitter and improve the accuracy and clarity of image processing.

Fig.3

The above recommended products all have the characteristics of high reliability, high stability, high precision, low power consumption, etc., and are suitable for various SSD application scenarios. At the same time, Yangxing Technology (YXC) also provides complete after-sales service and technical support to ensure that customers receive timely technical support and solutions during use.

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