8T49N287A-998NLGI#

Overview

The Renesas 8T49N287A-998NLGI is a FemtoClock NG Universal Frequency Translator (UFT) designed for high-performance clock generation. It functions as an octal output clock synthesizer and jitter cleaner, compliant with GR.1244-CORE Stratum standards. The device integrates a Phase-Locked Loop (PLL) to translate input frequencies into multiple precise output clocks. Key electrical parameters include support for differential inputs such as LVDS and LVPECL, and differential outputs in LVPECL format. It operates within a supply voltage range of 2.375V to 3.465V and supports a maximum operating temperature of 85°C.

Feature Summary

• Octal Universal Frequency Translator architecture providing eight independent output channels
• GR.1244-CORE Stratum standard compliance for telecommunications synchronization
• Integrated PLL with jitter cleaning capabilities for signal integrity optimization
• Supports differential input/output interfaces including LVDS and LVPECL

Applications

• Telecommunications base station synchronization systems
• Network infrastructure requiring Stratum-level timing accuracy
• High-speed data transmission equipment clock distribution
• Test and measurement instruments needing low-jitter clock sources

Procurement Notes

This component is listed as End-of-Life (EOL). Verification of current stock availability through authorized distributors is required. Buyers should review Product Change Notifications (PCN) regarding discontinuance timelines. Alternative sourcing strategies or qualified replacement parts must be identified prior to procurement to ensure supply chain continuity.

Selection Notes

Select this model when eight synchronized LVPECL outputs are required from a single clock source. Ensure the design accommodates the 2.375V–3.465V supply voltage range. Verify that the application meets GR.1244-CORE Stratum requirements. Due to the EOL status, confirm pin compatibility and electrical specifications against potential successor devices in the FemtoClock NG family before finalizing the design.

Part Context

The 8T49N287A belongs to the FemtoClock NG series by Renesas Electronics, formerly IDT. This series specializes in low-jitter clock generators and frequency translators. The 'A' suffix typically denotes a specific revision or variant within the 8T49N287 family, often associated with enhanced features or manufacturing updates compared to the base 8T49N287 model.

Replacement Considerations

Publicly confirmed substitute part numbers for the 8T49N287A-998NLGI were not found in the provided documentation. Users should consult Renesas official cross-reference guides or contact technical support for validated replacements.