8T49N105A-007NLGI8

Description：IC TIMING CLOCK
Series：-

SKU:315a77e8cfe0 Category: Clock Generators, PLLs, Frequency Synthesizers Brand: Renesas Electronics Corporation

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Product introduction

Product Detailed Parameters

Description：IC TIMING CLOCK
Series：-
Package：Tape & Reel (TR)
Mfr：Renesas Electronics Corporation
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Output：-
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Frequency - Max：-
Divider/Multiplier：-
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8T49N105A-007NLGI8

Overview

The IDT8T49N105I is a FemtoClock NG Universal Frequency Translator and Synthesizer featuring fourth-generation technology. It generates output frequencies from 0.98MHz to 1300MHz using a single differential input (LVPECL, LVDS, LVHSTL, HCSL) or a 16MHz-40MHz crystal. The device supports three modes: Frequency Synthesizer, High-Bandwidth Translator, and Low-Bandwidth Translator with jitter attenuation. It includes two factory-programmable OTP configurations selectable via the CONFIG pin or I2C register. Key electrical parameters include an input frequency range of 8kHz-710MHz, supply voltages of 2.5V or 3.3V, and operation from -40°C to 85°C in a 40-VFQFN package.

Feature Summary

Single differential input supporting LVPECL, LVDS, LVHSTL, and HCSL signals
Two factory-programmed One-Time Programmable (OTP) power-up configurations
Low RMS phase jitter: 439fs typical at 155.52MHz (Low Bandwidth Mode)
Integrated alarm monitoring for LOCK_IND, HOLDOVER, CLK_BAD, and XTAL_BAD

Applications

Networking and communications line cards
PCI Express and computing systems
General purpose clock translation

Procurement Notes

Verify component authenticity through authorized Renesas distributors. Confirm RoHS 6 compliance and lead-free status. Check for specific OTP configuration requirements if default settings do not match application needs. Ensure proper handling for ESD-sensitive surface-mount packaging.

Selection Notes

Select this model for applications requiring flexible frequency translation between disparate input and output rates. Choose based on required output voltage levels (2.5V or 3.3V) and interface types (LVDS or LVPECL). Utilize the I2C interface for post-power-up reconfiguration if dynamic changes are necessary beyond the two fixed OTP states.

Part Context

This component belongs to the IDT8T49N105I family within the FemtoClock NG series. It serves as a general-purpose low phase noise translator suitable for replacing older clock generation solutions in high-performance networking equipment where precise frequency synthesis and jitter attenuation are critical.