8INT31H800ANLGI

Overview

The 8INT31H800ANLGI is an eight-output very low phase jitter HCSL fanout buffer designed for high-performance interconnect applications. It supports operating frequencies up to 350MHz, covering popular Ethernet standards. The device features extremely low additive phase jitter and operates on a standard 3.3V power supply. It includes four output enable pins, each controlling two outputs, facilitating easy clock management for CPU sockets. The component utilizes a universal differential input compatible with HCSL or LVPECL sources.

Feature Summary

• Extremely low additive phase jitter supporting DB800H requirements
• Universal differential input accepting HCSL or LVPECL clock sources
• Four independent output enable pins for granular control of clock distribution

Applications

• High-performance interconnect systems
• CPU socket clock distribution
• Ethernet frequency generation and buffering

Procurement Notes

Verify the specific suffix NLGI against manufacturer documentation to confirm package dimensions and lead count. Confirm current product status as datasheets may indicate obsolescence. Ensure compatibility with 3.3V logic levels and check for RoHS compliance in final procurement specifications.

Selection Notes

Select this component when low phase jitter is critical for system stability at frequencies up to 350MHz. The universal input allows flexibility in driving source selection between HCSL and LVPECL. Consider the 32-pin VFQFN package for space-constrained designs requiring minimal board area.

Part Context

This part belongs to the IDT family of high-performance clock buffers, now under Renesas Electronics. It is engineered for demanding digital systems requiring precise timing and low noise. The device serves as a key element in maintaining signal integrity across complex motherboard architectures.

Replacement Considerations

Check for direct pin-compatible replacements within the 8INT31H series. Verify if newer Renesas timing solutions offer improved jitter performance or additional features while maintaining the same footprint and electrical characteristics.