8N4Q001LG-0142CDI8

Series:	FemtoClock® NG
Packaging:	Tape & Reel (TR)
Part Status:	Active
Type:	Clock Oscillator
Count:	--
Frequency:	120MHz
Voltage - Supply:	2.375 V ~ 2.625 V
Current - Supply:	155mA
Operating Temperature:	-40°C ~ 85°C
Package / Case:	10-CLCC
Supplier Device Package:	10-CLCC (7x5)
Mounting Type:	Surface Mount

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8N4Q001LG-0142CDI8 Application Field and Working Principle

Introduction

The 8N4Q001LG-0142CDI8 is a programmable oscillator with an integrated degree of accuracy of +/- 25ppm over the temperature range of -40°C to 85°C. The low phase jitter of the 8N4Q001LG-0142CDI8 makes it ideal for timing applications that require synchronization. The programmable frequency is controlled by the programming voltage input, which enables the user to easily customize a frequency for their needs. The integrated output stage of the oscillator reduces the external requirements for a low-power driving device, and combines the best of both worlds – convenience and accuracy.

Application Field

The 8N4Q001LG-0142CDI8 can be used in a wide range of applications, including but not limited to cellular base stations, microwave point-to-point or broadcast systems, test and measurement instrumentation, navigation systems and satellite receivers, medical imaging systems, point-to-point security systems and avionics systems.In addition to its wide application range, the low power consumption of the 8N4Q001LG-0142CDI8 ensures that it is also suitable for space-restricted applications such as Point-to-Point Links, Point-to-Multipoint Links, and Wireless LANs. With its low noise level, the 8N4Q001LG-0142CDI8 is also suitable for use in Multi-Mode Modules where coexistence of different wireless protocols is used.

Working Principle

The 8N4Q001LG-0142CDI8 is a voltage-controlled crystal oscillator (VCXO). It operates on the principle of frequency control through an external voltage signal. The VCXO is composed of a varactor diode and an external crystal.When an appropriate voltage is applied to the varactor diode, it stores electric charge and this in turn affects the frequency of the crystal oscillator. The higher the voltage, the higher the resonant frequency of the oscillator. The voltage control input of the VCXO allows the user to change the frequency of the oscillator in a predetermined range.The frequency of the VCXO is determined by the combination of the characteristics of the varactor diode and of the external crystal. The low phase-noise characteristics of the 8N4Q001LG-0142CDI8 ensure that its frequency is stable and it yields very high precision performance.

Conclusion

The 8N4Q001LG-0142CDI8 is a programmable oscillator suitable for high accuracy timing applications. Its low power consumption makes it suitable for space-restricted applications, while its low phase-noise characteristics make it ideal for synchronization applications requiring high accuracy. Its frequency control is accomplished by an external voltage control input and it can be used to cover a wide range of applications.

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