8T49N203A-007NLGI

Overview

The Renesas 8T49N203A-007NLGI is a Universal Frequency Translator within the FemtoClock NG series, designed for high-performance clock generation. It features one circuit with a maximum frequency of 25MHz and supports a 3:2 input-to-output ratio. The device accepts differential inputs including HCSL, LVDS, LVHSTL, LVPECL, or crystals, and provides differential LVPECL outputs. Operating on a 2.375V to 3.465V supply, it is housed in a 40-VFQFN package with an exposed pad. The component is currently obsolete.

Feature Summary

• Universal Frequency Translator architecture supporting 3:2 input-to-output ratios
• Differential LVPECL outputs with support for multiple input standards (HCSL, LVDS, LVHSTL, LVPECL, Crystal)
• Integrated PLL with bypass capability for flexible clock management
• Operates within a voltage range of 2.375V to 3.465V and -40°C to 85°C temperature range

Applications

• Telecommunications infrastructure requiring precise timing signals
• Data communication systems utilizing high-speed serial interfaces
• Network equipment needing jitter attenuation and frequency translation

Procurement Notes

This component is officially discontinued by Renesas Electronics Corporation. Verification of availability should focus on surplus distributors rather than direct manufacturer channels. Buyers must confirm the specific suffix '007' matches design requirements, as functional equivalents may exist under different part numbers within the same family.

Selection Notes

Designers should evaluate the 8T49N241 series as potential replacements, noting that pinouts and configuration options may differ. Ensure that the replacement device supports the required 25MHz maximum frequency and LVPECL output levels. Verify that the new component's MSL rating and thermal characteristics are compatible with the existing PCB layout and assembly processes.

Part Context

Part of the FemtoClock NG family, which specializes in low-jitter clock solutions. This specific model serves as a universal translator, bridging various input clock standards to standardized LVPECL outputs. It was widely used in applications demanding strict phase noise performance and frequency agility before its obsolescence notification.

Replacement Considerations

Publicly confirmed substitutes include 8T49N241-994NLGI, 8T49N241-998NLGI, and 8T49N241-999NLGI. These devices share the FemtoClock NG lineage but require verification of electrical compatibility and pinout alignment before integration.