8T49N241-007NLGI

Overview

The Renesas 8T49N241-007NLGI is a FemtoClock NG Universal Frequency Translator featuring one fractional-feedback PLL and four output dividers (one integer, three fractional). It generates up to four independent output frequencies ranging from 8 kHz to 1.0 GHz with RMS jitter as low as 0.35 ps. The device supports LVPECL, LVDS, HCSL, or LVCMOS output levels and accepts multiple input clock types. Configuration is managed via I²C or external EEPROM, enabling hitless switching and phase-slope limiting for precise timing control in high-speed digital applications.

Feature Summary

• Generates up to four independent output frequencies from 8 kHz to 1.0 GHz using one PLL and four dividers.
• Supports LVPECL, LVDS, HCSL, and LVCMOS output voltage levels.
• Features 0.35 ps RMS jitter performance including spurs from 12 kHz to 20 MHz.
• Configurable via I²C interface or boot from external I²C EEPROM.

Applications

• 10G/40G/100G SONET/SDH and Ethernet network line cards
• Wireless base station baseband units
• Carrier Ethernet switches and OTN equipment
• GbE/10GbE/100GbE Synchronous Ethernet line cards

Part Context

The 8T49N241 belongs to the FemtoClock NG family of universal frequency translators. This specific part number represents a factory-programmed configuration variant designed for specific frequency synthesis requirements without requiring user-side register programming at runtime.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Users should consult official distributor databases for cross-reference information.