DSC557-0334SI0T

Overview

The DSC557-0334SI0T is a two-output PCIe clock generator from the DSC557 series, manufactured by Microchip Technology. It utilizes silicon MEMS technology to generate a 100 MHz differential clock signal without requiring an external quartz crystal. The device supports HCSL and LVDS output formats and complies with PCIe Gen1/2/3/4 common clock specifications. It operates within a supply voltage range of 2.25V to 3.6V and functions across an industrial temperature range of -40°C to +85°C. Key features include integrated PLL functionality, low power consumption, and high immunity to shock and vibration.

Feature Summary

• Complies with PCIe Gen1, Gen2, Gen3, and Gen4 Common Clock Specifications
• Integrated Silicon MEMS Resonator Eliminates External 25 MHz Crystal Requirements
• Supports Multiple Output Formats Including HCSL and LVDS
• Industrial Temperature Range: -40°C to +85°C

Applications

• Communications and Networking (Ethernet, Routers, Switches)
• Storage Systems (SAN, NAS, SSD)
• Embedded Applications (Industrial, Medical, Avionics)

Procurement Notes

Verify the package type against the datasheet; the local source indicates a 16-TSSOP package, while the official documentation specifies a 14-Lead QFN for the DSC557-03 series. Confirm that the ordering suffix 'T' corresponds to the Tape & Reel packaging option as defined in the manufacturer's part identification system.

Selection Notes

Select this component for designs requiring compliance with PCIe Gen1 through Gen4 timing standards. Ensure the design accommodates the specific output format requirements (HCSL or LVDS) supported by the device. Verify that the operating environment falls within the specified -40°C to +85°C industrial temperature range and that the power supply voltage remains between 2.25V and 3.6V.

Part Context

The DSC557-0334SI0T belongs to the DSC557 family of dual-output PCI Express clock generators. This series replaces traditional quartz oscillators with silicon MEMS technology to improve reliability and reduce board space. The device is designed to accelerate product development in communications, storage, and networking applications by providing precise jitter performance.

Replacement Considerations

The DSC557-03 series can directly replace existing ICS557-03 clock generators. When selecting a replacement, ensure the substitute matches the required output formats (HCSL/LVDS), frequency stability, and package dimensions.