8T49N004A-000NLGI

Series:	FemtoClock® NG
Packaging:	Tray
Lead Free Status / RoHS Status:	--
Part Status:	Active
Moisture Sensitivity Level (MSL):	--
PLL:	Yes with Bypass
Input:	Crystal
Output:	LVPECL
Number of Circuits:	1
Ratio - Input:Output:	1:4
Differential - Input:Output:	No/Yes
Frequency - Max:	200MHz
Divider/Multiplier:	Yes/No
Voltage - Supply:	2.375 V ~ 3.465 V
Operating Temperature:	-40°C ~ 85°C
Mounting Type:	Surface Mount
Package / Case:	32-VFQFN Exposed Pad
Supplier Device Package:	32-VFQFN (5x5)

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Introduction

The 8T49N004A-000NLGI is an integrated clock generator and phase-locked loop (PLL) device that provides an extremely accurate and versatile solution for high frequency application needs. The 8T49N004A is designed to meet low jitter and wide frequency range requirements, making it suitable for a wide range of applications, such as high-speed communication links, embedded systems, and system-level logic. This product is housed in a tiny 10-pin package and is also available in a 7-pin version.

Features and Benefits

The 8T49N004A-000NLGI provides a number of features and benefits that make it an ideal choice for high frequency application needs. This device utilizes a highly accurate, low phase noise fractional-N phase locked loop (PLL) architecture, with a frequency synthesizer to generate a wide range of frequencies from 1MHz to 3GHz.The 8T49N004A also features a wide frequency band with low jitter performance, making it suitable for high speed links and embedded systems. Additionally, it offers a high output voltage for low voltage operation and is capable of generating up to 8 clock outputs from one reference clock input.

Application Areas

The 8T49N004A-000NLGI is specifically designed for high frequency application needs, such as high-speed communication links, embedded systems, and system-level logic. It is ideal for both baseband and broadband applications and is also suitable for applications where low power is required.The 8T49N004A can be used to generate multiple clock outputs from a single reference clock, as well as be used in chip-to-chip communications, high-performance networking, and applications with high speed data transfer. This device is also suitable for applications using protocols such as USB1.1/2.0, PCI Express, Fibre Channel, and 10/100/1000BaseT.

Working Principle

The 8T49N004A-000NLGI is based on a fractional-N architecture which consists of two components: a voltage-controlled oscillator (VCO) for frequency generation, and a loop filter for signal conditioning. The VCO is initiated from a reference clock and then maintained by a PLL loop filter.Frequency is determined by the VCO tuning voltage, while the loop filter stabilizes the system and eliminates jitter noise. The 8T49N004A also utilizes both an RF amplifier and a mixer to further stabilize the PLL and minimize jitter noise.

Conclusion

The 8T49N004A-000NLGI is an ideal choice for high frequency application needs, providing a highly accurate, low phase noise fractional-N PLL architecture. With features such as a wide frequency band with low jitter performance, a high output voltage for low voltage operation, and the ability to generate up to 8 clock outputs from one reference clock input, this device is suitable for a myriad of tasks from chip-to-chip communications to high speed data transfer.

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