251PMILFT

Ratio - Input:Output:	1:1
Base Part Number:	ICS251
Supplier Device Package:	8-SOIC
Package / Case:	8-SOIC (0.154", 3.90mm Width)
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 85°C
Voltage - Supply:	3.15 V ~ 3.45 V
Divider/Multiplier:	Yes/No
Frequency - Max:	200MHz
Differential - Input:Output:	No/No
Series:	VersaClock®
Number of Circuits:	1
Output:	CMOS
Input:	Clock, Crystal
PLL:	Yes
Type:	Clock/Frequency Synthesizer, Spread Spectrum Clock Generator
Moisture Sensitivity Level (MSL):	--
Part Status:	Active
Lead Free Status / RoHS Status:	--
Packaging:	Tape & Reel (TR)

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251PMILFT Application Field and Working Principle

251PMILFT is a digital phase-locked loop frequency synthesizer developed by Semtech Corporation. This device is specifically designed for telecommunication applications, including satellite communication systems, base stations, high-speed digital broadband local access networks, and other applications requiring precise frequency synthesis. In this article, we will discuss the application field of 251PMILFT as well as its working principle.

Application Field

251PMILFT is a flexible, cost-effective solution for applications where precise frequency synthesis is required. This device can be used in various applications, such as satellite communication systems, base stations, high-speed digital broadband local access networks, and any other application involving low phase noise and fast frequency switching. Furthermore, it is ideal for applications where small sizes, long holdover performance, and low power consumption are important.

Working Principle

At the core of the 251PMILFT is a phase-locked loop frequency synthesizer. This device uses an injection-locked frequency divider (ILFD) as the reference oscillator. The ILFD is used to generate the reference frequency which is then used to control the frequency of the output signal. The 251PMILFT also utilizes a digital signal processor (DSP) for more precise control of the frequency synthesis process. The DSP is used to adjust the phase and frequency of the output signal in order to maintain the desired frequency. The DSP also helps to reduce jitter in the output signal, allowing for greater accuracy and stability. The 251PMILFT has a wide variety of features designed to make it suitable for various applications. Its frequency range is between 10MHz and 800MHz, and its phase noise is low (-150dBc/Hz maximum). Furthermore, it has an integrated system-level optimization tool to helpfully fine-tune the performance of the system. The 251PMILFT also features a fast-switching frequency synthesizer, which allows for quick tuning of the output signal.

Conclusion

In conclusion, the 251PMILFT is a digital phase-locked loop frequency synthesizer developed by Semtech Corporation. This device is suitable for various applications where precise frequency synthesis is required, such as satellite communication systems, base stations, high-speed digital broadband local access networks, and more. At the core of the device is a phase-locked loop frequency synthesizer, which utilizes an injection-locked frequency divider and a digital signal processor for more precise control. This device offers a wide variety of features, such as wide frequency range, low phase noise, integrated system-level optimization tool, and fast-switching frequency synthesizer.

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