DSA557-0333FL0TVAO

Overview

The Microchip Technology DSA557-0333FL0TVAO is a two-output PCI Express clock generator utilizing silicon MEMS technology. It provides 100 MHz differential clocks compliant with PCIe Gen1/2/3/4 common clock specifications. The device operates within a supply voltage range of 2.25V to 3.63V and supports HCSL, LVDS, and LVCMOS output formats. It features dedicated output enable pins, integrated MEMS resonators eliminating external crystals, and AEC-Q100 qualification for Automotive Grade 2 (-40°C to +105°C). The component is housed in a compact 14-lead QFN package.

Feature Summary

• AEC-Q100 Qualified for Automotive Grade 2 (-40°C to +105°C)
• Complies with PCIe Gen1/2/3/4 Common Clock Specifications
• Integrated MEMS Resonator Eliminates External 25 MHz Crystal Requirement
• Supports HCSL, LVDS, and LVCMOS Output Formats

Applications

• Automotive Infotainment Systems
• Automotive Advanced Driver Assistance Systems (ADAS)
• Autonomous Driving Applications
• In-Vehicle Network Interfaces

Procurement Notes

Verify the specific ordering suffix 'AO' corresponds to standard automotive packaging requirements. Confirm that the '0' stability parameter matches the required ±100 ppm frequency tolerance for the target design. Ensure the 'F' package code aligns with the 14-lead QFN footprint constraints on the PCB layout.

Selection Notes

Select this model when two independent 100 MHz outputs are required for PCIe interfaces. The DSA557-03 variant is suitable for space-constrained designs due to its 14-lead QFN package. Consider alternative output formats (LVDS/LVCMOS) if HCSL compatibility is not required by the receiver circuitry.

Part Context

This component belongs to the DSA557 series of multiple-output MEMS PCIe clock generators. The -03 designation specifically indicates a two-output configuration, distinguishing it from the three-output DSA557-04 and four-output DSA557-05 variants which utilize 20-lead packages.

Replacement Considerations

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