8T49N524-003NLGI

Overview

The 8T49N524-003NLGI is a Universal Frequency Translator from Renesas Electronics Corporation, part of the FemtoClock NG family. It integrates three fully independent Phase-Locked Loops (PLLs) to generate up to four different output frequencies from two clock inputs and a crystal input. The device supports output frequencies ranging from 8kHz to 1.3GHz with low phase jitter performance. It features register programmability via an I²C interface or external EEPROM boot options. Designed for high-performance networking and communications applications, it ensures compliance with stringent jitter limits for SONET/SDH and Ethernet standards.

Feature Summary

• Integrates three fully independent PLLs for flexible frequency synthesis and translation
• Generates up to four distinct output frequencies ranging from 8kHz to 1.3GHz
• Supports LVPECL, LVDS, HCSL, and LVCMOS output voltage levels
• Features I²C serial interface for register programming and configuration

Applications

• 10G/40G/100G SONET/SDH network line cards
• Carrier Ethernet switches
• Wireless base station baseband units
• OTN (Optical Transport Network) equipment
• Test and measurement applications

Part Context

The 8T49N524 belongs to the 8T49NxxI series of Universal Frequency Translators. This family is characterized by multi-PLL architectures designed for complex timing requirements in telecommunications infrastructure. The specific model variant indicates a particular factory pre-programmed configuration for output frequencies and jitter specifications, intended for direct integration into high-speed data path designs.

Replacement Considerations

Direct replacements within the same family include the 8T49N366I, which also features three independent PLLs but may differ in specific output frequency ranges or package dimensions. Designers should verify pin compatibility and electrical parameters against the specific datasheet addendum for the -003NLGI suffix before substitution.