TS147F11CET

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Crystal oscillators are ubiquitous in the engineering world, from microwave communications to computing and timing or control of high frequency devices. The TS147F11CET is a temperature-compensated crystal oscillator (TCXO) – a type of crystal oscillator that incorporates temperature control functions. In this article we will explore the application field of the TS147F11CET and its working principle.

TS147F11CET Application Field

The TS147F11CET TCXO is suitable for applications that require accurate frequency stability to moderate ambient temperature fluctuations, such as automotive engine control, frequency generation and switching between cellular bands. The oscillator’s temperature control range enables stable frequency performance over a temperature range from -40°C to +105°C, making it suitable for use in hostile environments and a variety of applications where temperature control is critical.

The device is particularly useful for radio frequency and wireless applications due to its frequency accuracy and stability over temperature. The TS147F11CET device also offers industry-leading fast warmup time recovery across a wide frequency range and an excellent low-temperature stability. This makes it a very suitable choice for applications requiring voltage-controlled constant frequency and precise frequency tracking.

Working Principle of the TS147F11CET

The TS147F11CET incorporates a temperature-compensating circuit that can reduce the variation of frequency with temperature. This is achieved by monitoring the temperature of the oscillator and controlling the voltage of the quartz crystal. This is done with a temperature-sensing element and voltage adjustment circuitry, which is perfectly matched to the quartz crystal. The temperature-sensing element is used to measure the temperature of the crystal and the voltage adjustment circuitry is used to produce the necessary voltage to compensate the frequency.

The temperature-sensing element monitors the temperature of the crystal and changes its resistance accordingly. This resistance changes the voltage that is applied to the quartz crystal to adjust its frequency, by changing the thickness of the quartz platelets held within the crystal. As the temperature increases, the amplitude of the vibrations in the crystal decreases, but the frequency remains constant. As the temperature cools, resonance is restored and the crystal vibrates at the intended frequency.

Conclusion

The TS147F11CET TCXO offers great performance in a wide range of applications where temperature control is essential. Its temperature control range extends from -40°C to +105°C and it is suitable for use in automotive engine control and wireless frequency applications. Its temperature-compensating circuitry allows it to reduce the frequency-temperature variation and its voltage adjustment circuitry provides the necessary voltage to compensate the frequency. With its excellent low-temperature stability and fast warmup time recovery capabilities, the TS147F11CET TCXO is an ideal solution for a variety of applications.

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