8T49N286A-998NLGI

Overview

The 8T49N286A-998NLGI is a FemtoClock NG Universal Frequency Translator (UFT) clock synthesizer and jitter cleaner manufactured by Renesas Electronics. It supports a 5:8 input-to-output frequency ratio with differential inputs and outputs. The device operates within a supply voltage range of 2.375V to 3.465V and achieves maximum output frequencies up to 1GHz. It is housed in a 72-VFQFN exposed pad package (10x10mm). Key electrical parameters include compliance with GR.1244 Stratum standards for ultra-low frequency applications.

Feature Summary

• Supports GR.1244 UFT Stratum standard compliance for telecommunications synchronization
• Features 5:8 input-to-output frequency translation ratio with differential I/O
• Capable of generating output frequencies up to 1GHz
• Operates on a single supply voltage between 2.375V and 3.465V

Applications

• Telecommunications network synchronization equipment
• Ultra-low frequency (ULF) timing systems
• Base station infrastructure requiring GR.1244 compliance

Procurement Notes

Verify the specific suffix '8' indicates tape-and-reel packaging, distinct from tray-packaged variants like the -998NLGI. Confirm moisture sensitivity level (MSL 3) requirements for storage and reflow soldering profiles prior to assembly. Ensure the ordering quantity aligns with the manufacturer's standard reel size of 2,500 units.

Selection Notes

Select this component when a fixed 5:8 frequency division ratio is required alongside low-jitter performance. Compare against other FemtoClock NG models if variable ratios or different pin counts are needed. Verify that the 72-pin VFQFN footprint fits the target PCB layout constraints and thermal management requirements.

Part Context

This part belongs to the Renesas FemtoClock NG family of universal frequency translators. It is functionally related to the 8T49N286A-999NLGI8, which shares similar core specifications but may differ in packaging or minor configuration options. The series is designed for high-performance clock generation in datacom and telecom sectors.

Replacement Considerations

Direct substitutes within the same family include the 8T49N286A-999NLGI8. Cross-model alternatives such as the 8T49N241 or 8T49N242 series offer different I/O counts and ratios, requiring schematic and firmware adjustments.