8T49N205A-007NLGI8

Overview

The 8T49N205A-007NLGI8 is a frequency translator IC from the FemtoClock NG series by Renesas Electronics. It operates with a maximum input frequency of 25MHz and supports output frequencies up to 1.3GHz. The device features a single circuit configuration with a 1:1 input-to-output ratio. It utilizes a PLL with bypass functionality and accepts differential inputs including HCSL, LVDS, LVHSTL, LVPECL, or crystal sources. The output is provided in LVPECL format. Power supply voltage ranges from 2.375V to 3.465V, and it functions within an operating temperature range of -40°C to 85°C. The component is housed in a 40-VFQFN exposed pad package.

Feature Summary

• Supports multiple differential input standards including HCSL, LVDS, LVHSTL, LVPECL, and crystal configurations.
• Generates high-frequency outputs up to 1.3GHz using a single-phase locked loop architecture.
• Provides LVPECL differential output signals for precise timing distribution.
• Integrates a bypass feature within the PLL circuit for flexible clock path management.

Applications

• Telecommunications infrastructure requiring precise clock translation
• Data center networking equipment needing low jitter signal generation
• Industrial control systems utilizing standard logic interface clocks
• Test and measurement instruments requiring stable frequency synthesis

Procurement Notes

This component is classified as obsolete and no longer manufactured by Renesas Electronics Corporation. Verification of availability should focus on surplus distributors or existing stock holdings rather than direct factory orders. Engineers must confirm the authenticity of any sourced units through official documentation review. Replacement strategies should prioritize compatible active parts from the same product family to ensure design continuity and long-term supply stability.

Selection Notes

Designers selecting this part must account for its obsolete status when planning production lifecycles. The specific 40-VFQFN package requires careful PCB layout considerations for thermal dissipation and signal integrity. Input compatibility checks are essential given the support for diverse signaling standards like LVDS and HCSL. Voltage supply constraints between 2.375V and 3.465V must be strictly maintained during operation. Alternative solutions within the FemtoClock NG series should be evaluated for equivalent performance metrics.

Part Context

The 8T49N205A-007NLGI8 belongs to the FemtoClock NG family, designed for high-performance clock generation and translation tasks. This series emphasizes low phase noise and jitter attenuation capabilities suitable for demanding digital applications. As a frequency translator, it bridges lower frequency reference sources to higher speed system requirements. The device represents a specialized solution for maintaining timing accuracy across complex electronic architectures where signal conversion is necessary.

Replacement Considerations

Public confirmed substitute part numbers include RC22504A-000GNK#KB0. Designers should verify pinout compatibility and electrical specifications before integrating alternative components into existing designs.

FAQ

What input signal formats does the 8T49N205A-007NLGI8 support?

The device supports differential inputs including HCSL, LVDS, LVHSTL, LVPECL, and crystal configurations.

Is the 8T49N205A-007NLGI8 currently in production?

No, this component is classified as obsolete and is no longer manufactured by Renesas Electronics Corporation.