8T49N203A-025NLGI8

Overview

The 8T49N203A-025NLGI8 is a FemtoClock NG Universal Frequency Translator manufactured by Renesas Electronics Corporation. It operates within a supply voltage range of 2.375V to 3.465V and supports an input frequency ratio of 3:2 with one circuit. The device features differential LVPECL outputs and accepts inputs including HCSL, LVDS, LVHSTL, LVPECL, or crystals. It is housed in a 40-VFQFN package with an exposed pad and functions across a temperature range of -40°C to 85°C.

Feature Summary

• Integrates FemtoClock NG PLL technology for low phase jitter performance
• Supports multiple differential input levels including LVDS and LVPECL
• Provides programmable output frequencies via I2C interface

Applications

• Network line cards requiring precise clock translation
• Test and measurement equipment timing applications
• Carrier Ethernet switch synchronization

Procurement Notes

Verify component authenticity through authorized distributors as the part may be discontinued. Confirm specific order codes match required frequency configurations since internal register settings are factory programmed. Check for available replacement models such as the 8T49N241 series if current stock is unavailable. Ensure packaging specifications align with assembly requirements.

Selection Notes

Select this component when a single-input, dual-output frequency translator with differential LVPECL outputs is required. Verify that the 3:2 input-to-output ratio meets system design constraints. Consider the 40-VFQFN package size for board space limitations. Ensure compatibility with existing I2C programming infrastructure for configuration management.

Part Context

This device belongs to the FemtoClock NG family, designed for high-performance clock generation and distribution. It serves as a universal frequency translator capable of jitter attenuation and synthesis. The product line targets networking and communications equipment needing compliant timing signals.

Replacement Considerations

Public confirmed substitutes include the 8T49N241-994NLGI, 8T49N241-998NLGI, and 8T49N241-999NLGI from Renesas Electronics Corporation.