579R250IAT

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Oscillators are designed to provide a periodic, repeating output signal. They repeat their output signal at a fixed frequency, phase, and magnitude. The 579R250IAT oscillator is no exception.

The 579R250IAT oscillator is a temperature compensated, voltage controlled oscillator (TCVCXO). It is an ideal choice for applications requiring precision timing and small size, such as spread spectrum wireless applications. The device has a low phase noise, low RMS voltage jitter, low total harmonic distortion (THD) and frequency stability over temperature. It is able to operate from a 7 to 15Vdc supply voltage and has a Sine wave output.

The 579R250IAT has a superior quality control and built-in features that can be used for robust operation. Its built-in features include:

• Absolute stability to within 5 x 10^-7 over -40°C to +85°C
• Low phase noise: <- 178 dBc/Hz @ 10 kHz offset
• Output waveform: sinusoidal
• Frequency range: 2–254 MHz
• Input voltage range: 7–15 VDC
• Dynamic power saving and power-on Reset
• Phase jitter: < 37 ps rms
• RMS voltage jitter: < 150 fsrms

The 579R250IAT is a very precise oscillator which can be used in many different types of applications such as spread spectrum, frequency synthesizers, AM/FM transmitters and receivers, timing systems, and frequency standard reference. The device can be used in high-volume OEM applications such as military communications systems, navigation systems, and IoT applications. Its low THD and excellent frequency stability makes it an ideal choice for precision timing and control applications.

The working principle of the 579R250IAT oscillator is based on a voltage-controlled series resonant circuit. The oscillator operates in open-loop mode and relies on the frequency-temperature stability of its highly accurate quartz resonators. It has two identical crystal oscillators, connected in series, with a frequency of 2–254 MHz. The two quartz crystals are connected to a common source node, where a sinusoidal oscillating signal is generated. The frequency of the oscillation is determined by the series resonant frequency of the two crystals. The oscillator is designed to detect the input voltage level and modify the oscillation frequency accordingly.

The 579R250IAT oscillator has excellent frequency-temperature stability. It is capable of providing a precise frequency over extended temperature ranges, making it ideal for use in precision timing and control applications. The device also offers excellent frequency stability and low phase noise, ensuring a clean and reliable output signal.

Overall, the 579R250IAT oscillator is a reliable and high-quality device that is ideal for precision timing applications. Its superior quality control, low power consumption and high frequency stability make it an ideal choice for many precision timing applications.

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