844071AGLFT

Differential - Input:Output:	No/Yes
Base Part Number:	ICS844071
Supplier Device Package:	8-TSSOP
Package / Case:	8-TSSOP (0.173", 4.40mm Width)
Mounting Type:	Surface Mount
Operating Temperature:	0°C ~ 70°C
Voltage - Supply:	2.375 V ~ 3.63 V
Divider/Multiplier:	Yes/Yes
Frequency - Max:	170MHz
Series:	FemtoClock®
Ratio - Input:Output:	1:1
Number of Circuits:	1
Output:	LVDS
Input:	Crystal
PLL:	Yes
Type:	Clock Generator
Part Status:	Active
Packaging:	Tape & Reel (TR)

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Clock/Timing - Clock Generators, PLLs, Frequency Synthesizers

The 844071AGLFT is a clock generator family device that is integrated with a high-performance PLL and frequency synthesizers to provide a single-chip, low-power solution for generating and managing frequencies. The device is used in a wide range of applications, including system clocking, radio frequency (RF) signal generation, and digital signal processing (DSP).

Features

The 844071AGLFT includes several features that make it well-suited for applications requiring high-performance frequency control. The device features a programmable frequency output, allowing the user to set the desired frequency with a single command. The frequency can range from 1.8 GHz to 2.6 GHz. Additionally, the device supports multiple outputs and configurations, making it suitable for a variety of applications requiring multiple reference and frequency outputs. The device also supports a low-power mode, reducing the power consumption of the device to under 5m W when inactive.

Application Examples

The 844071AGLFT is used in a variety of applications that require precise frequency control. These include radios and other wireless systems, DSP systems, and automotive navigation and speed control systems. Additionally, the device is used in timing applications such as frequency hopping, synchronization, clock distribution, and system level clock synchronizers.

Working Principle

The core component of the 844071AGLFT is the integrated PLL and frequency synthesizer. The PLL is used to generate a reference clock based on a user-provided reference signal. The reference clock is then fed into the frequency synthesizer, which is used to generate the desired output frequency. The frequency synthesizer operates by dividing the reference clock by a programmable integer. The integer is determined by a control signal that is provided by either an external control source or an internal source. The resulting frequency is then used as the output frequency of the 844071AGLFT. Internally, the frequency synthesizer is designed to bypass the programmable divider and allow for a semi-locked frequency operation, making it suited for applications requiring high-speed frequency switching.

Conclusion

The 844071AGLFT is a clock generator device with integrated PLL and frequency synthesizers that is well-suited for applications requiring precise frequency control. The device includes a programmable frequency output and utilizes an internal PLL for generating reference clocks. Additionally, the device supports low-power operation and is suitable for a wide range of applications ranging from radios to automotive navigation systems.

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