AB-557-03-HCHC-F-L-C-T

Overview

The AB-557-03-HCC-F-L-C-T is a crystal-less PCI Express dual output ultra-miniature Pure Silicon SMD clock generator manufactured by Abracon LLC. It operates within a frequency range of 2.3 MHz to 460 MHz, with a typical center frequency of 100 MHz. The device utilizes HCSL output format and functions on a supply voltage between 2.25 V and 3.6 V. It features a 14-VFQFN exposed pad package measuring 3.2 x 2.5 mm. Key electrical parameters include a maximum supply current of 60 mA in enabled mode, a startup time of 5 ms, and an integrated period jitter of 2.5 ps RMS at 100 MHz.

Feature Summary

• Crystal-less design utilizing MEMS technology for high shock and vibration immunity
• Dual output configuration supporting PCIe Gen 1.1, Gen 2.1, and Gen 3.0 specifications
• HCSL output format with differential true and complement signals
• RoHS/RoHS II compliant with MSL Level 1 classification

Applications

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

Procurement Notes

Verify the specific suffix codes against the manufacturer's part identification guide to confirm output formats, stability, and temperature ratings. Confirm packaging options such as bulk or tape and reel quantities before ordering. Ensure compatibility with Pb-Free assembly profiles if required for the manufacturing process.

Selection Notes

Select this component for designs requiring low-profile timing solutions with robust mechanical durability. Verify that the operating temperature range meets the environmental requirements of the target application. Check that the HCSL output format aligns with the input requirements of the downstream logic devices.

Part Context

This model belongs to the AB-557-03 series of Pure Silicon clock generators. The series offers mixed output formats including LVPECL, LVDS, and LVCMOS variants alongside the HCSL option. It serves as a solid-state alternative to traditional quartz crystals, providing enhanced reliability in demanding environments.

Replacement Considerations

For frequencies other than 100 MHz, consider using the ASEMDxx series. Verify pinout and package dimensions when substituting with other clock generators from different manufacturers.