8T49N205A-012NLGI

Overview

The 8T49N205A-012NLGI is a FemtoClock NG Universal Frequency Translator manufactured by Renesas Electronics. It features one fractional-feedback PLL capable of functioning as a frequency translator with jitter attenuation or a frequency synthesizer. The device includes four integer output dividers to generate up to four independent output frequencies ranging from 8kHz to 1GHz. Outputs support LVPECL, LVDS, HCSL, or LVCMOS levels. Configuration is managed via an I2C interface or external EEPROM.

Feature Summary

• Generates up to four independent output frequencies using four integer output dividers
• Supports multiple differential and single-ended output voltage standards including LVPECL, LVDS, HCSL, and LVCMOS
• Configurable via I2C interface or boot configuration from external EEPROM
• Designed for high-performance timing applications requiring low phase jitter

Applications

• SONET/SDH network line cards
• Ethernet network line cards
• Wireless base station baseband units
• Test and measurement equipment

Procurement Notes

Verify the specific suffix '012NLGI' against official Renesas documentation to confirm the exact factory pre-programmed frequency set and package type. Confirm current lifecycle status and availability through authorized distributors, as clock generator portfolios may undergo transitions or obsolescence notices.

Selection Notes

Select this component when designing systems requiring a universal frequency translator with flexible output options. Ensure the required output voltage levels (LVPECL, LVDS, etc.) match the downstream receiver specifications. Verify that the supported input reference frequencies align with the system's crystal or clock source requirements.

Part Context

This part belongs to the FemtoClock NG family of ultra-low jitter clock generators. These devices utilize fourth-generation PLL technology to provide precise timing solutions for high-speed digital interfaces. The 8T49N205A variant specifically targets applications needing multiple independent clock outputs derived from a single reference.

Replacement Considerations

Consult official Renesas cross-reference lists for verified substitutes. Generic clock generators may not offer identical jitter performance or output flexibility.