DSC557-04333KI1

Overview

The DSC557-04333KI1 is a crystal-less, three-output PCI Express clock generator utilizing silicon MEMS technology. It provides differential LVDS outputs at 100 MHz and meets PCIe Gen1, Gen2, and Gen3 specifications. The device operates on a supply voltage of 2.25V to 3.6V with an operating temperature range of -40°C to 85°C. It features a 20-VFQFN package (5x3.2mm) and includes integrated PLLs for stability without external crystals.

Feature Summary

• Three differential LVDS outputs compliant with PCIe Gen1, Gen2, and Gen3 standards
• Crystal-less design using silicon MEMS technology for enhanced reliability
• Integrated PLL with ±100 ppm frequency stability
• Output enable/disable control via OE1 and OE2 pins

Applications

• Ethernet and networking equipment (Routers, Switches)
• Storage systems (SAN, NAS, SSD)
• Embedded applications in industrial, medical, and avionics sectors

Procurement Notes

Verify the specific output format configuration associated with the '333' suffix against the datasheet ordering guide. Confirm that the -40°C to 85°C temperature grade aligns with system requirements. Ensure the 20-QFN footprint matches the PCB layout guidelines provided in the manufacturer's documentation.

Selection Notes

Select this component when a three-channel differential LVDS clock source is required for PCIe interfaces. The MEMS architecture offers superior shock and vibration immunity compared to quartz oscillators. Verify power consumption needs, as enabled HCSL/LVDS outputs draw approximately 100 mA under typical conditions.

Part Context

This part belongs to the DSC557-04 series of Crystal-less PCIe Clock Generators. It serves as a direct replacement for traditional quartz-based solutions in high-reliability communication and storage applications, offering reduced board space and improved performance stability across varying temperatures.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation.