8T49N287A-998NLGI8

Overview

The 8T49N287A-998NLGI8 is a FemtoClock NG Universal Frequency Translator (UFT) manufactured by Renesas Electronics. It functions as a clock synthesizer and jitter cleaner compliant with GR.1244-CORE Stratum standards. The device supports multiple input formats including LVPECL, LVDS, HCSL, and crystal oscillators. It generates precise output frequencies using fourth-generation PLL technology with an internal VCO range of 1.92GHz to 2.5GHz. The component features an I2C programming interface for register configuration and operates within a temperature range of -40°C to 85°C.

Feature Summary

• GR.1244-CORE Stratum standard compliance for telecommunications synchronization
• Fourth-generation FemtoClock NG PLL technology with low RMS phase jitter
• Flexible input support: LVPECL, LVDS, HCSL, or external/internal crystal
• I2C programmable interface for custom frequency configurations

Applications

• Telecommunications infrastructure requiring Stratum timing
• Base station synchronization systems
• Network equipment clock distribution

Procurement Notes

This component is listed as End-of-Life (EOL) by the manufacturer. Availability is restricted, and distributors may not stock this part in all regions. Verification of current lifecycle status and alternative sourcing channels is required before procurement planning.

Selection Notes

Select this model for applications demanding GR.1244 compliance and low jitter performance. Ensure the design accommodates the specific voltage supplies and I2C control requirements. Due to the EOL status, evaluate long-term supply chain risks and consider redesigning with active alternatives if production longevity is critical.

Part Context

The 8T49N287A belongs to the FemtoClock NG family of universal frequency translators. This series is designed for high-performance clock generation and jitter cleaning in synchronous digital systems. The 'A' suffix typically denotes a specific revision or variant within the 8T49N287 product line.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided data. Given the EOL status, consult Renesas for recommended obsolescence management strategies or equivalent active components.