DSC557-0333FE0T

Overview

The DSC557-0333FE0T is a two-output PCIe clock generator utilizing MEMS technology. It provides 100 MHz differential outputs in LVDS format, compliant with PCIe Gen1 through Gen4 common clock specifications. The device operates on a 2.25V to 3.6V supply within the commercial temperature range of -20°C to +70°C. It features an integrated MEMS resonator, eliminating the need for external crystals. Key electrical parameters include a frequency stability of ±100 ppm and RMS period jitter of 2.5 ps at 100 MHz. The component is housed in a 14-VFQFN exposed pad package.

Feature Summary

• Complies with PCIe Gen1/2/3/4 Common Clock Specifications
• Integrated MEMS Resonator eliminates external quartz crystal requirements
• LVDS Output Format with 100 MHz Frequency
• Qualified to MIL-STD-883 for Shock & Vibration Immunity

Applications

• PCI Express (PCIe) Systems
• Ethernet Communications (1G, 10GBASE-T/KR/LR/SR)
• Storage Area Networks (SAN) and Network Attached Storage (NAS)

Procurement Notes

Verify the ordering suffix '33FE0T' against official Microchip documentation to confirm specific output formats, temperature grade, and packaging type. Ensure compatibility with the target system's voltage levels and thermal requirements before procurement.

Selection Notes

Select this model for applications requiring PCIe Gen1-4 compliance without external crystals. Confirm that the LVDS output format matches the receiver inputs. Verify that the commercial temperature range (-20°C to +70°C) meets the operational environment constraints.

Part Context

This component belongs to the DSC557-03 series of two-output PCI express clock generators. The series offers various output combinations including HCSL, LVDS, and LVCMOS across different temperature grades and stability options.

Replacement Considerations

Direct substitutes within the same family include DSC557-0313FL0 and DSC557-0344FI0. Verify pinout and electrical characteristics match before substitution.

FAQ

Does the DSC557-03 require an external crystal?

No, the device integrates a MEMS resonator, eliminating the need for an external 25 MHz crystal.

What is the maximum operating temperature for this part?

The commercial grade DSC557-0333FE0T has a maximum operating temperature of +70°C.

Is the device compatible with PCIe Gen4?

Yes, the DSC557-03 complies with PCIe Gen1, Gen2, Gen3, and Gen4 common clock specifications.