8T49N222B-101NLGI8

Overview

The 8T49N222B-101NLGI8 is a FemtoClock NG Universal Frequency Translator manufactured by Renesas Electronics. It features one fractional-feedback PLL capable of jitter attenuation or frequency synthesis, paired with three integer output dividers to generate up to three independent output frequencies ranging from 8kHz to 1GHz. The device supports differential inputs including LVPECL, LVDS, LVHSTL, and HCSL, with LVDS outputs. It operates on a 2.375V to 3.465V supply within a -40°C to 85°C temperature range, housed in a 48-VFQFN package.

Feature Summary

• Generates up to three independent output frequencies from 8kHz to 1GHz using one PLL and three integer dividers
• Supports multiple input levels: LVPECL, LVDS, LVHSTL, HCSL, and crystal
• Provides LVDS differential outputs compliant with SONET/SDH and SyncE standards
• Register programmable via I²C interface

Applications

• SONET/SDH network line cards
• Synchronous Ethernet (SyncE) applications
• Wireless base station baseband units
• Carrier Ethernet switches

Procurement Notes

Verify the specific suffix '101' against official Renesas documentation to confirm factory pre-programmed configuration parameters. Confirm RoHS compliance status and check for End-of-Life notices or Product Change Notifications prior to procurement.

Selection Notes

Select this component when a single PLL solution with three distinct output frequencies is required. Ensure the application utilizes LVDS outputs and requires input support for LVPECL, LVDS, LVHSTL, or HCSL signals. Verify that the 48-VFQFN package fits the design constraints.

Part Context

This part belongs to the 8T49N222B series within the FemtoClock NG family. These devices are designed as universal frequency translators offering jitter attenuation and frequency synthesis capabilities for high-performance networking and communication equipment.

Replacement Considerations

Consult the official Renesas cross-reference guide for verified substitutes. Generic clock generators may not match the specific jitter performance or register compatibility required for this application.