AX7PAF1-657.4219T

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Oscillators are fundamental elements of electronic circuits involved in many applications such as radio and television transmission, switching circuits, computer and other digital signal processing. The AX7PAF1-657.4219T oscillator is a precision oscillator based on ceramic resonator technology, offering low phase noise, low jitter, and excellent frequency stability over temperature and voltage. In addition, the oscillator features low harmonic distortion, high repeatability and superior thermal and voltage shock performance — ideal for a wide range of wireless communications and military-aerospace applications.

Application Field

The AX7PAF1-657.4219T oscillator is a versatile, low noise unit suitable for use in analog and digital signal processing, RFID, ultrasonic test systems, point-of-sale terminals, communications systems, navigation systems, and medical instruments. It is a reliable source for frequency reference and synchronization in L-band measurement and DVB-T reception systems. The oscillator is also suitable for clock synthesis in MP3 players, Digital Satellite Systems (DVS), IP data transmission, Car Radio Tuner (CRT) and surveillance sensors.

Working Principle

The AX7PAF1-657.4219T oscillator operates on the principle of frequency control via a resonator. A typical oscillator circuit is composed of an amplifier with a positive feedback circuit and a resonator. The amplifier produces an output signal which is applied back to the input, increasing the applied frequency at the input. The resonator then filters this frequency to the exact desired frequency. This frequency is then used as the output for the oscillator that forms the reference source. The resonator used in the AX7PAF1-657.4219T oscillator is a ceramic resonator which is chosen due to its low power consumption, high stability, small size and excellent frequency control.

The AX7PAF1-657.4219T oscillator offers very good stability and low jitter in frequency stability. Frequency stability is the change in frequency that the output of the oscillator shows over time and temperature variations. In addition, it has a power down detection system that powers-down the oscillator when power is removed, protecting the electronics in the circuitry from extreme fluctuations in power.

The AX7PAF1-657.4219T oscillator has excellent performance capabilities. It offers up to 4 percent frequency accuracy over the commercial and industrial temperature ranges and excellent frequency stability of ±10 ppm over a temperature range from -40 to +125°C. It can also be used in very high temperatures up to +150°C.

Conclusion

The AX7PAF1-657.4219T oscillator is an economical and reliable source for precision frequency reference and synchronization in a variety of applications. The oscillator provides low noise and excellent frequency stability over temperature and voltage and low harmonic distortion. It is designed to be used in a variety of communication, digital signal processing, and military-aerospace applications.

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