8T49N524-002NLGI8

Series:	FemtoClock® NG
Packaging:	Tape & Reel (TR)
Part Status:	Obsolete
PLL:	Yes with Bypass
Input:	Crystal
Output:	LVDS
Number of Circuits:	1
Ratio - Input:Output:	1:8
Differential - Input:Output:	No/Yes
Frequency - Max:	148.5MHz
Divider/Multiplier:	Yes/Yes
Voltage - Supply:	2.375 V ~ 3.465 V
Operating Temperature:	-40°C ~ 85°C
Mounting Type:	Surface Mount
Package / Case:	40-VFQFN Exposed Pad
Supplier Device Package:	40-QFN (6x6)

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Clock/Timing - Clock Generators, PLLs, Frequency Synthesizers

Clock generators, phase locked loops (PLLs) and frequency synthesizers are key components in a wide range of electronics applications, including digital instruments, telecommunications systems and computer systems. The 8T49N524-002NLGI8 device is a precision-tunable, highly integrated clock generator that delivers outstanding performance, robust design, and advanced features. It is suitable for many applications, including Phase Locked Loops (PLLs), frequency synthesizers, frequency hopping, beamforming, and other clock and RF applications.

Overview

The 8T49N524-002NLGI8 is a low-power, high-performance clock generator that provides a high-precision, adjustable clock signal for a wide range of applications. The device is based on an advanced CMOS process, making it ideal for applications such as high-speed digital signal processing (DSP) and high-frequency communications systems. The 8T49N524-002NLGI8 can generate up to five output clocks, each of which can be independently programmed with different output frequency and divisible parameters. The device also features an on-chip fractional-N PLL that can operate at frequencies up to 1 GHz. Its advanced features enable it to deliver superior performance, making it suitable for a variety of applications.

Features

The 8T49N524-002NLGI8 offers several features that enhance its performance and make it suitable for a variety of applications. These include:

• Programmable output frequency ranges up to 1 GHz
• Programmable output divisors for each output frequency
• Integrated fractional-N Phase-Locked Loop (PLL) architecture
• Multiple output types, including LVDS, SSTL and Buffered
• Programmable power management modes
• Programmable delay settings
• Integrated Spread Spectrum support

Applications

The 8T49N524-002NLGI8 is suitable for many applications, including:

• Phase Locked Loops (PLLs): The integrated PLL makes the 8T49N524-002NLGI8 ideal for use in PLL systems. Its small package size and low power consumption make it well-suited for applications such as power amplifier PLLs in small wireless devices.
• Frequency Synthesizers: The 8T49N524-002NLGI8 is ideal for use in digital signal processing (DSP) systems, as it is capable of producing clock signals with a high degree of precision and reliability. The integrated fractional-N PLL architecture allows the device to generate a wide range of frequencies with a wide range of accuracy.
• Frequency Hopping: The 8T49N524-002NLGI8 is ideal for applications requiring frequency hopping, as it is capable of generating clock signals with variable frequency and divisors. This makes it suitable for communications systems that require rapid frequency changes.
• Beamforming: The 8T49N524-002NLGI8 is also suitable for use in beamforming applications, as it is capable of generating multiple signals with varying frequency and phase. This makes it ideal for creating multiple beams simultaneously.
• Other Clock and RF Applications: The 8T49N524-002NLGI8 is also suitable for other clock and RF applications, due to its wide range of output frequencies and divisors, its low power consumption, and its integrated PLL architecture.

Working Principle

The 8T49N524-002NLGI8 provides a high-precision, adjustable clock signal by using an advanced CMOS process. The device consists of a PLL-based clock generator and a timing circuit. The PLL consists of a phase detector, a voltage-controlled oscillator (VCO), and a frequency divider. The phase detector receives a reference clock signal, and compares it to the output of the VCO. If the phase difference exceeds a certain threshold, the phase detector produces an error signal, which is then input to the VCO, which in turn produces a new frequency output until the error signal is eliminated. The frequency divider then divides the VCO output by a programmable divisor to generate the output clock signal. The timing circuit is responsible for adjusting the phase and frequency of the output clock signal.

Conclusion

The 8T49N524-002NLGI8 is a precision-tunable, highly integrated clock generator that delivers outstanding performance, robust design, and advanced features. It is suitable for many applications, including Phase Locked Loops (PLLs), frequency synthesizers, frequency hopping, beamforming, and other clock and RF applications. Its low power consumption, small package size, and programmable power management modes make it ideal for embedded applications. Its integrated fractional-N PLL architecture and programmable divisors enable it to generate highly accurate output clock signals, making it ideal for a variety of applications.

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