8T49N004A-047NLGI8

Overview

The 8T49N004A-047NLGI8 is a FemtoClock NG clock generator manufactured by Renesas Electronics. It features a single PLL circuit with a 1:4 input-to-output ratio, supporting differential LVPECL inputs and outputs. The device operates within a supply voltage range of 2.375V to 3.465V and supports maximum frequencies up to 300MHz. It is housed in a 32-VFQFN package with an exposed pad, designed for surface mount installation. The component functions as a programmable frequency synthesizer suitable for high-performance timing applications.

Feature Summary

• Single PLL architecture with 1:4 input-to-output ratio
• Differential LVPECL input and output signaling
• Operating temperature range from -40°C to +85°C
• Supply voltage range of 2.375V to 3.465V

Applications

• High-speed data communication systems requiring low jitter
• Network infrastructure equipment timing
• Server and storage subsystem clock generation

Procurement Notes

This specific part number is listed as obsolete or discontinued in public distributor records. Verification of current availability requires checking official Renesas channels or authorized distributors for remaining stock or end-of-life notifications. Ensure the ordering suffix matches the required configuration exactly.

Selection Notes

Select this component when a single PLL with four LVPECL outputs is required. Verify that the input signal compatibility (LVDS, HCSL, or LVPECL) matches the system design. Confirm that the 32-VFQFN package dimensions fit the PCB layout constraints and that the thermal requirements for the exposed pad are met.

Part Context

The 8T49N004A belongs to the FemtoClock NG family, which utilizes advanced PLL technology for low phase jitter performance. This series is designed for universal frequency translation and jitter attenuation in demanding digital systems.

Replacement Considerations

Publicly available substitute part numbers for this specific obsolete model were not verified in the provided source material. Consult Renesas application notes for recommended cross-references or newer generations within the FemtoClock portfolio.