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8T49N241-999NLGI

REN8T49N241-999NLGI

Renesas Electronics Corporation
IC 1GHz 1 40-VFQFN Exposed Pad
Active465 in stock
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Overview

The 8T49N241-999NLGI is a high-performance Universal Frequency Translator that integrates a single PLL capable of generating any output frequency up to 1GHz from a variety of input sources. It features hitless switching and holdover capabilities, ensuring stable clock distribution in high-reliability networking environments. The device supports multiple differential and single-ended I/O standards with a 3:4 input-to-output ratio.

Why Choose This Part

The device offers exceptional flexibility by translating any input frequency to nearly any output frequency with hitless switching to prevent phase jumps during clock failover. It eliminates the need for multiple discrete oscillators by supporting HCSL, LVDS, LVPECL, and LVCMOS outputs from a single 40-VFQFN package.

Applications

OTN and SONET/SDH Equipment
Used for jitter attenuation and frequency translation in synchronous optical networking systems.
Terabit IP Switches and Routers
Provides high-speed system clocks for core networking infrastructure requiring low phase noise.
Wireless Base Station Baseband
Acts as a centralized timing source for baseband processing units in cellular infrastructure.
Data Center Networking
Generates low-jitter reference clocks for high-speed Ethernet physical layers and PCIe interfaces.

Key Specifications

PLL Yes with Bypass
Input LVCMOS, LVDS, LVHSTL, LVPECL, Crystal
Output HCSL, LVCMOS, LVDS, LVPECL
Mounting Type Surface Mount
Package / Case 40-VFQFN Exposed Pad
Frequency - Max 1GHz
Voltage - Supply 2.375V ~ 3.465V
Divider/Multiplier Yes/No
Number of Circuits 1
Ratio - Input:Output 3:4
Operating Temperature -40degC ~ 85degC
Supplier Device Package 40-VFQFPN (6x6)
Differential - Input:Output Yes/Yes

Getting Started

Designers can configure the device via the I2C interface or by loading settings from an external I2C EEPROM for autonomous operation. Renesas provides the Timing Commander software tool to simplify the calculation of PLL fractional feedback dividers and output configurations.

Also Consider

LMK04828 TITexas Instruments - Provides dual-loop PLL architecture and JESD204B support for high-speed data converter clocking.