FXTC-HE73PR-156.25 MHZ

Frequency Stability:	±2.5ppm
Current - Supply (Disable) (Max):	--
Height - Seated (Max):	0.094" (2.40mm)
Size / Dimension:	0.283" L x 0.205" W (7.20mm x 5.20mm)
Package / Case:	6-SMD, No Lead
Mounting Type:	Surface Mount
Ratings:	--
Current - Supply (Max):	63mA
Operating Temperature:	-40°C ~ 85°C
Series:	FXTC-HE73
Voltage - Supply:	3.3V
Output:	HCMOS
Function:	Enable/Disable
Frequency:	156.25MHz
Type:	TCXO
Base Resonator:	Crystal
Part Status:	Obsolete
Packaging:	Strip

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Introduction

Oscillators are electronic devices that are commonly used to generate an electrical signal of a very high frequency, and often be used in electronics such as radio, television and computers. FXTC-HE73PR-156.25 MHZ is an oscillator ideal for RF applications and belongs to the same family of oven controlled crystals oscillators (OCXOs). It provides precise frequency control, low phase noise, low power consumption and high accuracy. With a wide output frequency range and high stability, this oscillator is greatly suitable for frequency synthesis, filtering and high-performance communication systems. In this article, we will further elaborate on the application field and working principle of the FXTC-HE73PR-156.25 MHZ oscillator.

Application field

The FXTC-HE73PR-156.25MHZ oscillator is applicable to various RF applications and can be used for frequency synthesis, filtering, and other components of high performance communication systems. It is ideal for radio systems, wireless backhaul, and point-to-point broadband systems. With enhanced performance and low power consumption, this oscillator can also be used as a fractional-N frequency synthesizer in GPS receiver, digital television, and cellular base stations or as a reference oscillator in 4G mobile terminals. It can be integrated in products such as remote control telecommunications, scientific instruments, navigation equipment, motor controllers, and digital cameras.

Working Principle

The FXTC-HE73PR-156.25MHZ oscillator typically contains a quartz crystal, a temperature sensor, an amplitude reinforcement circuit, and an oscillator circuit. The quartz crystal works as the resonator and senses the frequency changes caused by the variation of temperature. The temperature sensor such as an NTC thermistor is used to detect the changes in temperature and compensate for the change in frequency accordingly. The amplitude reinforcement circuit and the oscillator circuit provide the signal amplification and the oscillations respectively.The working principle of the FXTC-HE73PR-156.25MHZ oscillator can be summarized in three steps. Firstly, the quartz crystal selectively vibrates at its designed frequency when hits by an oscillator signal, providing an electronic feedback signal. Secondly, the temperature sensor detects the temperature variation and actuates an error signal to the amplitude reinforcement circuit. Finally, the error signal produced by the temperature sensor will than be amplified and added to the oscillator signal, creating the signals of the oscillation circuit. Thus, the oscillator can maintain the output frequency accuracy ensuring that the designed frequency is achieved and remains stable, irrespective of environmental temperature or change of supply voltage.Conclusion

In conclusion, the FXTC-HE73PR-156.25MHZ is an oven controlled crystals oscillator (OCXOs), ideal for RF applications. It features wide output frequency range, low phase noise, low power consumption and high accuracy. This oscillator is applicable to various applications such as radio systems, wireless backhaul, and point-to-point broadband systems, making it an ideal choice for frequency synthesis, filtering, GPS receivers, and other components of high performance communication systems. Its working principle is based on the oscillator circuit, the amplitude reinforcement circuit, the quartz crystal and the temperature sensor. The quartz crystal vibrates at its designed frequency when hit by an oscillator signal and the temperature sensor detects the temperature variation. The error signal produced by the temperature sensor will than be amplified and added to the oscillator signal, allowing the oscillator to operate stable. Thus, the FXTC-HE73PR-156.25MHZ oscillator is a great choice for high performance communications systems.

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