8T49N105A-999NLGI

Description：IC TIMING CLOCK
Series：-

SKU:dd21518151c4 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：Bulk
Mfr：Renesas Electronics Corporation
PLL：-
Input：-
Output：-
Number of Circuits：-
Ratio - Input:Output：-
Differential - Input:Output：-
Frequency - Max：-
Divider/Multiplier：-
Voltage - Supply：-
Operating Temperature：-
Mounting Type：-
Package / Case：-
Supplier Device Package：-
Type：-

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8T49N105A-999NLGI

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 fundamental mode crystal (16MHz-40MHz). The device supports three modes: Frequency Synthesizer, High-Bandwidth Frequency Translator, and Low-Bandwidth Frequency Translator. It provides one programmable LVPECL or LVDS output pair. Key electrical parameters include an input frequency range of 8kHz-710MHz, supply voltages of 2.5V or 3.3V for VCC/VCCA/VCCO, and an operating temperature of -40°C to 85°C. Jitter performance includes 439fs RMS at 155.52MHz in low-bandwidth mode.

Feature Summary

Single differential input supporting LVPECL, LVDS, LVHSTL, and HCSL levels with a frequency range of 8kHz to 710MHz.
Generates output frequencies from 0.98MHz to 1300MHz with zero ppm translation capability.
Configurable as LVPECL or LVDS output via I2C serial interface.
Includes two factory-programmable default power-up configurations stored in OTP memory.

Applications

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

Procurement Notes

Verify the specific ordering suffix against the datasheet to confirm package type and voltage options. Confirm that the required factory-programmed configurations are specified during procurement, as these settings are burned into One-Time Programmable memory and cannot be altered after manufacturing.

Selection Notes

Select this component when a single output channel is sufficient for the design. Ensure the application requires either LVPECL or LVDS signaling, as the device does not support multiple independent output pairs. Verify that the desired output frequency falls within the supported divider ranges defined in Table 3 of the datasheet.

Part Context

This device belongs to the FemtoClock NG family of Universal Frequency Translators. It integrates alarm and monitoring functions suitable for networking applications. The part number IDT8T49N105A-999NLGI corresponds to the Revision A silicon variant packaged in a 40-lead VFQFN format.