AB-557-03-HCHC-S-L-T

Overview

The AB-557-03-HCHC-S-L-T is a crystal-less PCI Express dual output ultra-miniature SMD clock generator from the Pure Silicon™ series by Abracon LLC. It operates within a supply voltage range of 2.25V to 3.6V and supports frequencies up to 460MHz. The device features HCSL input and output formats, housed in a 16-TSSOP package with dimensions of 3.2 x 2.5 x 0.85 mm. It provides two differential outputs (CLK0 and CLK1) and includes an active-high Output Enable pin. The component meets PCIe Gen1, Gen2, and Gen3 specifications, offering low power consumption and excellent shock and vibration immunity suitable for high-speed data applications.

Feature Summary

• Crystal-less design utilizing MEMS technology for solid-state reliability
• Dual differential outputs with HCSL format for both input and output
• Supports PCIe Gen1, Gen2, and Gen3 compliance standards
• Wide operating temperature range from -40°C to +85°C

Applications

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

Procurement Notes

Verify the specific ordering suffixes against the manufacturer's part identification guide to ensure correct configuration. Confirm that the selected frequency matches the required system specification, as non-standard frequencies may require direct consultation with the manufacturer. Ensure the packaging type aligns with production requirements.

Selection Notes

Select this component when a compact, crystal-less clock solution is needed for PCIe or high-speed serial applications. Verify that the HCSL I/O levels match the receiving and driving circuitry requirements. Check the thermal management needs based on the 60mA typical supply current at maximum frequency. Ensure the 16-TSSOP footprint fits the available PCB space constraints.

Part Context

This model belongs to the AB-557-03 series, which offers various output formats including LVCMOS, LVPECL, LVDS, and HCSL. The series is designed to replace traditional quartz crystals, providing better shock and vibration resistance. Different suffixes indicate variations in output format, stability, temperature range, and packaging options.

Replacement Considerations

Direct replacements must maintain the 16-TSSOP package and HCSL I/O compatibility. Verify that any substitute component supports the same frequency range and meets the required PCIe jitter specifications. Cross-reference the pinout to ensure OE and VDD/VSS configurations are identical.