8T49N445-999ASGI8

Series:	FemtoClock® NG
Packaging:	Tape & Reel (TR)
Part Status:	Active
PLL:	Yes with Bypass
Input:	HCSL, LVDS, LVHSTL, LVPECL
Output:	LVDS
Number of Circuits:	1
Ratio - Input:Output:	5:4
Differential - Input:Output:	Yes/Yes
Frequency - Max:	622.08MHz
Divider/Multiplier:	Yes/Yes
Voltage - Supply:	2.375 V ~ 2.625 V
Operating Temperature:	-40°C ~ 85°C
Mounting Type:	Surface Mount
Package / Case:	80-LBGA
Supplier Device Package:	80-BGA (10x10)

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8T49N445-999ASGI8 Clock/Timing - Clock Generators, PLLs, Frequency Synthesizers

The 8T49N445-999ASGI8 is a type of clock generating device in which a simple adjustable free-running oscillator is used to generate an output signal that can be adjusted by changing the frequency of the oscillation. It is part of the Clock/Timing family and falls under the categories of Clock Generators, Phase-Locked Loops (PLLs) and Frequency Synthesizers. It is the industry-leading oscillator in terms of precision and stability, making it the ideal solution for timing and synchronization applications.

Applications

Clock/Timing systems have a wide variety of applications, such as telecommunications, military/aerospace applications, automotive, and audio/video/multimedia/broadcast equipment. It is also used in high-speed data devices, networking equipment, and many more.The 8T49N445-999ASGI8 Clock Generator is specifically designed for high-precision, high-accuracy timing solutions. Its miniature design, low-power consumption, and small board-area requirements make it a perfect solution for many advanced applications, such as medical and industrial. It is also ideal for automotive applications, such as timing systems, instrument clusters, and security systems.

Features

The 8T49N445-999ASGI8 Clock Generator has many features that set it apart from its competitors. Its high-precision frequency synthesis allows for ultra-low noise, high-accuracy performance in the range of 0.02 ppm, making it suitable for demanding timing requirements. Its frequency range is adjustable from 2.9 kHz to 500 MHz, with an external bypass output up to 8 GHz.The device also features programmable spread spectrum capabilities, which can be enabled by design or remotely through an I2C bus. This can reduce clock noise and help with EMI compliance when used in regulated applications.

Design Parameters

When designing a system with the 8T49N445-999ASGI8 Clock Generator, there are several design parameters that need to be considered. The type of output is selectable between LVCMOS, HCMOS, LVDS and RVDS. The output frequency should be in the range of 2.9 kHz to 500 MHz, and the output power should be +3.3 Volts for all versions.The device also features an internal band gap reference, and a temperature compensation circuit to ensure stability and accuracy at all temperatures and operating conditions.

Working Principles

The 8T49N445-999ASGI8 Clock Generator works by using a programmable frequency source combined with a phase-locked loop (PLL) to generate an output signal that is locked to a reference frequency. The PLL works to maintain the output frequency within a specific range and can be adjusted to provide the desired frequency accuracy.The frequency of the output signal is determined by the value of a reference frequency, which is programmed into the device. This reference frequency can be configured by changing the settings of the device. The PLL will then strive to maintain the output frequency as close to the reference frequency as possible.To ensure the accuracy of the output signal, the internal band gap reference and the temperature compensation circuit will help to ensure that the output frequency remains within a tolerable range.

Conclusion

The 8T49N445-999ASGI8 Clock Generator is an industry-leading oscillator, delivering precision and stability that is necessary for timing and synchronization applications. Its wide frequency range and programmable spread spectrum capabilities make it suitable for a variety of demanding applications. Its miniature design coupled with low-power consumption ensures that it occupies very little board space, making it an ideal solution for advanced applications and automotive systems.

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