8T49N1012-991NLGI8

Overview

The 8T49N1012-991NLGI8 is a FemtoClock NG 12-output frequency synthesizer manufactured by Renesas Electronics. It features one fractional-feedback PLL for frequency synthesis, two integer outputs, and eight fractional outputs. The device integrates an EEPROM for configuration storage and supports low-jitter clock generation suitable for high-speed digital applications requiring precise timing.

Feature Summary

• Integrates one fractional-feedback PLL for flexible frequency synthesis
• Provides twelve output channels with mixed integer and fractional capabilities
• Includes onboard EEPROM for persistent configuration storage

Applications

• High-speed data communication systems
• Network infrastructure equipment
• Server and storage subsystems

Procurement Notes

Verify the complete part number including the suffix to ensure correct package and temperature grade. Confirm that the specific variant matches the required output configuration and electrical specifications from the official datasheet before procurement.

Selection Notes

Select this component when a multi-output clock solution with integrated jitter attenuation is required. Ensure the design accommodates the specific PLL architecture and output distribution characteristics defined in the technical documentation.

Part Context

This part belongs to the FemtoClock NG family of clock generators. These devices are designed to provide low-phase-noise clock signals for demanding digital applications, combining synthesis and jitter cleaning functions in a single package.

Replacement Considerations

Consult the official cross-reference list for verified substitutes. Generic replacements may not match the specific PLL architecture or output count.