843031AG-01LF

Clock Generators, PLLs, Frequency Synthesizers Overview

The Renesas Electronics Corporation 843031AG-01LF is a FemtoClock crystal oscillator interface clock generator IC designed for 10Gb Ethernet applications. It features one differential LVPECL output and operates with a 25MHz parallel resonant crystal input. The device supports output frequencies ranging from 280MHz to 340MHz. It functions within a supply voltage range of 2.375V to 3.465V and is rated for an operating temperature range of -40°C to 85°C. The component is housed in an 8-TSSOP package.

Clock Generators, PLLs, Frequency Synthesizers Feature Summary

• Designed specifically for 10Gb Ethernet FemtoClock applications
• Features a single differential LVPECL output
• Crystal oscillator interface optimized for 25MHz parallel resonant crystals

Clock Generators, PLLs, Frequency Synthesizers Applications

• 10Gb Ethernet network infrastructure
• High-speed data communication systems
• FemtoClock jitter reduction circuits

Clock Generators, PLLs, Frequency Synthesizers Procurement Notes

This component is officially listed as obsolete by the manufacturer. Availability is restricted, and distributors may not stock this item in all regions. Verify end-of-life status and lead times carefully before design-in. Sourcing should focus on authorized channels or approved surplus suppliers to ensure authenticity and traceability.

Clock Generators, PLLs, Frequency Synthesizers Selection Notes

Select this part when a dedicated FemtoClock solution for 10Gb Ethernet is required. It provides a fixed-frequency LVPECL output derived from a 25MHz crystal. Ensure the application requires the specific 280MHz to 340MHz frequency range and LVPECL signaling levels compatible with the target receiver inputs.

Clock Generators, PLLs, Frequency Synthesizers Part Context

The 843031AG-01LF belongs to the FemtoClock series of clock generators from Renesas Electronics. This family focuses on low-jitter clock generation for high-speed serial links. The device integrates a PLL and crystal interface into a compact surface-mount package, serving as a critical timing source for gigabit Ethernet transceivers.

Clock Generators, PLLs, Frequency Synthesizers Replacement Considerations

ICS843031AGI-01LF