8T49N222B-123NLGI8

Overview

The 8T49N222B-123NLGI8 is a universal frequency translator integrated circuit from the FemtoClock NG series, manufactured by Renesas Electronics Corporation. It operates within a supply voltage range of 2.375V to 3.465V and supports input formats including HCSL, LVDS, LVHSTL, and LVPECL, alongside crystal inputs. The device provides a single output channel in the LVDS format with a maximum frequency of 1GHz. It features a 3:2 input-to-output ratio and includes both differential input and output capabilities. Packaged in a 48-VFQFN exposed pad surface-mount enclosure, it functions reliably across an operating temperature range of -40°C to 85°C.

Feature Summary

• Universal frequency translation capability supporting multiple input standards
• Integrated PLL with bypass functionality for flexible clock generation
• Supports differential signaling on both input and output channels

Applications

• High-speed data communication systems requiring precise clock synthesis
• Telecommunications infrastructure equipment
• Server and storage subsystems needing low-jitter clock distribution

Procurement Notes

Verify the specific suffix '123' against official Renesas documentation to confirm the exact output frequency configuration, as ordering suffixes define functional parameters. Ensure compatibility with the required input signal types (HCSL, LVDS, etc.) before integration. Confirm that the 48-VFQFN package dimensions align with the target PCB footprint and thermal management requirements. Check for any recent product change notices regarding assembly sites or material composition updates.

Selection Notes

Select this component when a universal frequency translator is required to convert between various logic levels and frequencies. It is suitable for designs needing a single-channel LVDS output derived from diverse input sources. Consider the 3:2 ratio constraint and verify if the available input/output combinations meet the system architecture. Evaluate the thermal performance of the exposed pad package for the intended application environment.

Part Context

This part belongs to the FemtoClock NG series, which focuses on high-performance clock generation and jitter attenuation. The 8T49N222B variant specifically serves as a universal frequency translator, distinguishing it from fixed-ratio synthesizers. It complements other Renesas timing solutions by offering flexibility in input/output configurations for complex system clocking needs.

Replacement Considerations

Consult the official FemtoClock NG ordering guide for cross-reference information. Verify pinout and electrical parameter compatibility with potential substitute parts from the same family or alternative manufacturers before implementation.