8T49N240-033NLGI

Overview

The Renesas 8T49N240-033NLGI is a FemtoClock NG Universal Frequency Translator featuring a single fractional-feedback Phase-Locked Loop (PLL). It functions as a jitter attenuator or frequency synthesizer, generating up to four independent output frequencies ranging from 8 kHz to 1.0 GHz using differential outputs (LVPECL/LVDS/HCSL) or up to 16 LVCMOS outputs. The device accepts multiple input clock types and supports register programming via I²C or external EEPROM booting.

Feature Summary

• Single fractional-feedback PLL for flexible frequency translation and jitter attenuation
• Generates up to four independent differential output frequencies up to 1.0 GHz
• Supports hitless switching between input clocks with phase-slope limiting
• Configurable via I²C interface or boot configuration from external EEPROM

Applications

• SONET/SDH and Ethernet network line cards
• Wireless base station baseband units
• Carrier Ethernet switches and OTN equipment

Part Context

This component belongs to the Renesas FemtoClock NG family of low-phase noise clock generators. The 8T49N240 series is specifically designed for high-performance timing applications requiring precise frequency synthesis and jitter cleaning in telecommunications and data communications infrastructure.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Users should consult official Renesas resources for current availability and potential obsolescence notices.