8T49N240-032NLGI

Overview

The Renesas 8T49N240-032NLGI is a FemtoClock NG Universal Frequency Translator clock synthesizer. It features one fractional-feedback PLL capable of jitter attenuation or frequency synthesis, equipped with four integer output dividers to generate up to four independent frequencies from 8kHz to 1GHz. The device supports LVPECL, LVDS, HCSL, and LVCMOS output levels. Configuration is managed via an I2C interface or external EEPROM. It complies with Telcordia GR-253-CORE and ITU-T G.813/G.8262 standards when paired with a Synchronous Equipment Timing Source.

Feature Summary

• Generates up to four independent output frequencies ranging from 8kHz to 1GHz using four integer output dividers.
• Supports multiple output voltage standards including LVPECL, LVDS, HCSL, and LVCMOS.
• Compliant with SONET/SDH and SyncE jitter limits for 10G to 25G Ethernet applications.
• Features auto and manual input clock selection with hitless switching capabilities.

Applications

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

Procurement Notes

The 8T49N240-032NLGI is listed as having limited supply status. Verification of current availability and lead times should be conducted directly with the manufacturer or authorized distributors prior to procurement planning.

Selection Notes

Select this component for designs requiring precise jitter attenuation and flexible frequency translation in high-speed networking. Ensure compatibility with the required output voltage levels (LVPECL/LVDS/HCSL/LVCMOS) and verify that the target application meets the compliance requirements for SyncE and SONET/SDH timing sources.

Part Context

This part belongs to the Renesas FemtoClock NG family of low-jitter clock generators. The 8T49N240 series is designed for universal frequency translation, offering programmable configurations through I2C or EEPROM to support diverse system timing requirements across various communication protocols.

Replacement Considerations

The 8T49N242 series serves as a similar alternative within the same product family. Verify specific pinout and configuration register compatibility before substitution.