843004AGLF

Series:	FemtoClock®
Packaging:	Tube
Part Status:	Obsolete
Type:	Frequency Synthesizer
PLL:	Yes with Bypass
Input:	Crystal
Output:	LVPECL
Number of Circuits:	1
Ratio - Input:Output:	1:4
Differential - Input:Output:	No/Yes
Frequency - Max:	226.66MHz
Divider/Multiplier:	Yes/No
Voltage - Supply:	3.135 V ~ 3.465 V
Operating Temperature:	-30°C ~ 85°C
Mounting Type:	Surface Mount
Package / Case:	24-TSSOP (0.173", 4.40mm Width)
Supplier Device Package:	24-TSSOP
Base Part Number:	ICS843004

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Clock Generators, PLLs, and Frequency Synthesizers: 843004AGLF Application Field and Working Principle

Clock generators, phase-locked loops (PLLs), and frequency synthesizers are electronic components used in many varieties of electronic systems and devices. They allow those systems and devices to communicate effectively and accurately with one another and the environment in which they are used. This article explores the application field and working principles of the 843004AGLF phase-locked-loop frequency synthesizer.

The 843004AGLF

The 843004AGLF phase-locked loop frequency synthesizer is an analog component designed to provide cost-effective, fast settling times for frequency synthesis for a wide range of applications. It is an integrated device, combining a high-performance voltage-controlled oscillator, Phase Frequency Detector (PFD), charge pump, and a wide range of adjustable loop filtering elements into a single package. It is designed to accommodate a wide range of reference frequencies from 4.7 MHz to 500 MHz and a wide range of output frequencies from 1 kHz to 2.4 GHz.

Application Field

The 843004AGLF is a versatile frequency synthesizer, suitable for a variety of applications including clock and data distribution, broadcast, test and measurement equipment, telecommunications, and instrumentation.The 843004AGLF is ideal for clock and data distribution applications such as in computers, network switches, routers, mobile phones, digital radio, and satellite systems. In these applications, it is used to accurately and efficiently produce and distribute the necessary clock signals.In broadcast applications, the 843004AGLF is used to generate stable signals at various frequencies for transmitting data through various analogue and digital mediums. The 843004AGLF also finds application in test and measurement equipment. It is used for calibrating and testing the performance of a wide range of components and systems.Telecommunications systems, such as cellular networks and other wireless networks, rely on the 843004AGLF for their implementation. The 843004AGLF provides synthesized frequencies for the transmission and reception of communication signals, ensuring efficient transmission of information.Instrumentation and control systems, such as scientific instrumentation, also use the 843004AGLF as a clock and frequency source.

Working Principle

The 843004AGLF Phase-Locked-Loop Frequency Synthesizer works by comparing a controlled oscillator frequency to an external reference frequency. The external reference frequency is compared to a divide-down frequency generated by dividing the output of the VCO, creating a Phase Frequency Detector (PFD). When the signals are equal, they are locked in phase and the output frequency is equal to a multiple of the reference frequency.The PFD will adjust the voltage control input of the VCO until the frequency of the output is in an acceptable range. This is accomplished using a charge pump connected to the PFD, adjusting the voltage applied to the control input on the VCO. As this voltage is adjusted, the frequency of the VCO output is simultaneously adjusted, thus allowing for a wide range of output frequencies.

Conclusion

The 843004AGLF Phase-Locked-Loop Frequency Synthesizer can be used in a wide range of applications for clock and frequency generation. It allows for a wide range of reference frequencies to be used and outputs frequencies from 1 kHz to 2.4 GHz. The 843004AGLF obtains stable clock and frequency signals by comparing the output of the VCO to an external reference frequency, and adjusting the voltage control input on the VCO until the frequency of the output is in an acceptable range. In conclusion, the 843004AGLF is an effective, cost-efficient solution for both clock and data distribution applications, broadcast applications, test and measurement equipment, telecommunications systems, and instrumentation and control systems.

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