AB-557-03-HCLV-F-L-C-T3

Overview

The AB-557-03-HCLV-F-L-C-T3 is a crystal-less PCI Express dual output ultra-miniature Pure Silicon SMD clock generator manufactured by Abracon LLC. It operates within a supply voltage range of 2.25 V to 3.6 V and supports frequencies up to 460 MHz, with a typical frequency of 100 MHz. The device features two differential outputs in HCSL and LVDS formats, housed in a 14-VFQFN exposed pad package (3.2x2.5 mm). It provides an overall frequency stability of ±100 ppm and functions across an operating temperature range of -40°C to +85°C.

Feature Summary

• Crystal-less design utilizing Pure Silicon technology for high shock and vibration immunity
• Dual differential outputs supporting mixed formats including HCSL and LVDS
• Compliant with PCIe Gen1, Gen2, and Gen3 specifications
• Low power consumption with 60 mA enabled supply current

Applications

• PCI Express systems
• Storage Area Networks
• Passive Optical Networks
• Ethernet applications (1G, 10GBASE-T/KR/LR/SR, FCoE)
• Industrial and Medical equipment

Procurement Notes

Verify the specific ordering suffix 'T3' indicates a tape and reel packaging quantity of 3,000 pieces per reel. Confirm that the 'LV' suffix corresponds to the LVDS output format for Clock 1 as defined in the part identification table. Ensure the component meets the required commercial or industrial grade standards without military or life-dependent application restrictions.

Selection Notes

Select this model when a compact 14-pin QFN footprint is required for PCIe or Ethernet timing solutions. The device supports frequencies up to 460 MHz but requires contacting the manufacturer for non-standard frequencies other than 100 MHz. Consider the wide supply voltage range of 2.25 V to 3.6 V for flexible power rail integration.

Part Context

This component belongs to the AB-557-03 series of Pure Silicon clock generators. It serves as a solid-state alternative to traditional quartz crystals, offering superior reliability against mechanical stress. The series is designed to reduce electromagnetic interference in embedded systems and consumer electronics.

Replacement Considerations

For frequencies other than 100 MHz, consider using the ASEMDxx series. Verify compatibility with existing PCB layouts due to the specific 14-QFN pinout configuration.