SL28PCIE14ALI

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SL28PCIE14ALI Application Field and Working Principle

The SL28PCIE14ALI is an integrated clock generator and buffer device designed for use in PCIe applications, such as mobile and desktop computers, servers, and networking equipment. This device utilizes an advanced design architecture to yield an accurate reference clock signal with minimal jitter. The SL28PCIE14ALI is a highly integrated solution, which reduces circuit design complexity, as well as reduces overall system power consumption.

Application Field

The SL28PCIE14ALI is designed to enable PCIe solutions that support multiple clock domains. This device can be used to provide the PCIe reference clock for PCIe I/O cards, such as PCIe SSDs, PCIe HDDs, PCIe SATA, PCIe GPUs, etc. The SL28PCIE14ALI is also suitable for PCIe endpoints, such as PCIe switches, PCIe bridges, PCIe dongles, etc. Additionally, this device can be used as a clock source for various ASICs and FPGAs within PCIe systems.

Working Principle

The SL28PCIE14ALI contains two distinct domains. The first domain is the reference clock generator, which provides a clean and accurate 24 MHz clock signal. This signal is then passed to the buffer domain, which helps to reduce jitter, improve signal integrity, and reduce power consumption. The output of this buffer is the reference clock signal required by the PCIe system. This signal meets the PCIe specification requirements, and is used to clock the system.

The SL28PCIE14ALI features five selectable output frequencies, making it suitable for multiple applications. These frequencies are 15/16 MHz, 20/21 MHz, 25/26 MHz, 30/31 MHz, and 24.576/25.6 MHz. The reference clock output is compliant with PCIe spec and can be used as the reference clock from the PCIe host. Additionally, the device can be powered from either a 5V or 3.3V power supply, making it suitable for most systems.

Conclusion

The SL28PCIE14ALI device is a highly integrated, low-power solution that can be used in the clock/timing application-specific field. This device is ideal for providing the reference clock for PCIe systems, and its five selectable output frequencies make it suitable for a wide range of applications. The accurate reference clock output and low power consumption make it an excellent choice for PCIe systems.

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