AX7PBF1-575.0000C

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Oscillators can be divided into two main categories, namely, the basic free-running oscillator and the feedback oscillator. Split from the two types, there is one type of oscillator with extensively usage, AX7PBF1-575.0000C. Below, we are going to discuss its application field and working principle and explain why it is so popular.

Application Field

AX7PBF1-575.0000C is an ultra small, low voltage and high-frequency, temperature-compensated oscillator developed for use in low voltage applications such as memory timing and synchronized operations. Its high stability and low power consumption make AX7PBF1-575.0000C perfect for various low-power and low-noise applications. It is widely used in PC/104 system, avionic, industrial control, instrumentation and mobile devices.

Working Principle

The AX7PBF1-575.0000C oscillator is a temperature compensated crystal oscillator which works based on the piezoelectric effect, this means that when a suitable voltage is applied it vibrates mechanically, generating an electrical signal. This signal is a sinusoidal wave which has a particular frequency, this frequency is determined by the material properties of the crystal. The signal generated by the oscillator is used for different applications, such as timekeeping, as clock signal, for signaling and RF transmissions, for measuring filters, for testing circuit behavior due to its stability and consistency. This oscillator provides frequency stability over a wide range of temperatures (0°C to 70°C) and is capable of regulating frequencies accurately over a wide range of temperatures.

Thermistor Network

This oscillator has a thermistor network located across the contacts of the oscillator to sense and automatically adjust the frequency output to compensate for frequency variation due to temperature. The network consists of two NTC (Negative Temperature Coefficient) thermistors and two resistors connected in circuit. As the temperature increases one thermistor becomes more active and its resistance decreases, the other one becomes less active and its resistance increases. This changing of resistance in the thermistor network will cause a voltage change and this in turn affects the output frequency of the oscillator as the frequency is directly proportional to the control voltage.

Advantages

The AX7PBF1-575.0000C oscillator offers excellent frequency stability even at high-temperature environment. Moreover, this particular oscillator has a wide operating temperature range from -40 °C to +85 °C. It also produces a very low phase noise, thus making it suitable for low noise application. Furthermore, it is ultra-small in size and provides very low power consumption.

In conclusion, the AX7PBF1-575.0000C oscillator is a miniaturized, temperature-compensated crystal oscillator that can be used in various applications like memory timing, synchronized operations, avionics, industrial control, instrumentation, and mobile devices. Its wide operating temperature range, ultra-small size, low power consumption, and excellent frequency stability make it an ideal choice for many applications.

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