8T49N240-025NLGI

Overview

The 8T49N240-025NLGI is a clock synthesizer and jitter attenuator from Renesas Electronics, part of the FemtoClock NG family. It operates within a supply voltage range of 2.375 V to 3.465 V and supports an operating temperature range of -40 °C to +85 °C. The device features four output channels with a maximum output frequency of 867 MHz and accepts input frequencies up to 875 MHz. It is housed in a 40-pin VFQFN package and draws approximately 40 mA during operation.

Feature Summary

• Four LVPECL/LVDS/HCSL outputs capable of generating frequencies up to 867 MHz
• Jitter attenuation functionality for signal integrity improvement
• I2C programmable interface for configuration flexibility
• VFQFN-40 surface-mount package design

Applications

• High-speed data communication systems
• Network equipment requiring precise clocking
• Test and measurement instrumentation
• Industrial control systems

Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels. Confirm specific order codes match required frequency configurations. Check for moisture sensitivity handling requirements due to the VFQFN package type. Ensure compatibility with existing I2C bus voltages and levels before integration into final designs.

Selection Notes

Select this model when four differential or single-ended outputs are required with high-frequency capabilities up to 867 MHz. Consider the VFQFN-40 package constraints for PCB layout and thermal management. Verify that the 875 MHz maximum input frequency meets system reference clock specifications. Evaluate power consumption against available supply rails within the 2.375 V to 3.465 V range.

Part Context

This component belongs to the 8T49N240 series, designed as low-jitter clock generators. It serves as a replacement for older clock solutions in high-performance networking and computing applications. The 'NLGI' suffix typically denotes specific packaging and tape/reel quantities, while the numeric code defines factory pre-programmed frequency settings.

Replacement Considerations

Direct substitutes may include other models from the 8T49N24x series with compatible pinouts and electrical characteristics. Verify output voltage levels and package dimensions before swapping. Consult Renesas documentation for equivalent part numbers offering similar jitter performance and output configurations.