AB-557-03-HCHC-S-L-C-T3

Overview

The AB-557-03-HCHC-S-L-C-T3 is a crystal-less PCI Express dual output ultra-miniature SMD clock generator from the Pure Silicon™ series by Abracon LLC. It operates on a supply voltage of 2.25V to 3.6V with a maximum frequency of 460MHz. The device features HCSL outputs for both channels and utilizes a 14-pin QFN package (3.2 x 2.5 x 0.85 mm). It supports PCIe Gen 1, 2, and 3 specifications with low jitter performance. The component is RoHS/RoHS II compliant, has an MSL Level of 1, and operates within a temperature range of -40°C to +85°C.

Feature Summary

• Crystal-less design using MEMS technology for shock and vibration immunity
• Dual HCSL outputs supporting PCIe Gen 1, 2, and 3 standards
• Ultra-miniature 14-QFN package (3.2 x 2.5 x 0.85 mm)
• Wide supply voltage range (2.25V to 3.6V) and low power consumption

Applications

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

Procurement Notes

Verify the ordering suffix 'T3' indicates tape and reel packaging containing 3,000 pieces per reel. Confirm the specific frequency requirement as standard models are typically 100MHz; custom frequencies require direct manufacturer contact. Ensure the selected operating temperature range (-40°C to +85°C) matches the application environment.

Selection Notes

Select this model when HCSL output format is required for both differential pairs. Compare against other output formats like LVPECL or LVDS if signal integrity requirements differ. Verify that the 14-QFN footprint fits the PCB layout constraints. Consider the ASEMDxx series if frequencies other than the standard options are needed.

Part Context

This part belongs to the AB-557-03 series of Pure Silicon™ clock generators. These devices replace traditional quartz crystals with solid-state MEMS technology, offering improved reliability in high-shock environments. The series provides various output formats and temperature grades to support diverse industrial and consumer electronics designs.

Replacement Considerations

Direct substitutes may include other Abracon AB-557-03 variants with different output formats (e.g., LVCMOS, LVPECL) or packaging options. Cross-reference pinouts and electrical characteristics carefully when replacing with components from other manufacturers.