UMZ-558-A16-G

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Voltage Controlled Oscillators (VCOs) are electronic devices that rely on the amplitude of a voltage signal for frequency control. In essence, the voltage applied to a VCO determines the frequency of oscillation. The UMZ-558-A16-G is a typical VCO used in many applications such as frequency generation, modulation, and time-keeping.

The UMZ-558-A16-G is a type of PLL (phase-locked loop) which can feature a built-in Least Mean Squares (LMS) adaptive loop-filter which provides improved linearity and speed compared to traditional PLLs. Popular applications of this type of device are high-performance clock generators, communication systems, and servo motor control.

The device operates in two distinct modes - linear and discontinuous. In linear mode, the frequency output is directly proportional to the amplitude of the changing reference signal. In discontinuous mode, the frequency output is limited to a fixed value. The frequency range is typically between 3-6MHz and the frequency can be precisely adjusted using temperature compensation.

When operating in linear mode, the UMZ-558-A16-G is stable over temperature and can maintain a high degree of accuracy. In addition, the device features a wide range of frequency control levels and excellent linearity over temperature, which is a major advantage over other types of VCOs.

In terms of its working principle, the device can generate a signal by changing the value of the additional timing capacitor in the circuit. The signal is then sent out through a loop-filter and a buffer amplifier to an output stage, where the frequency of the VCO is determined by the voltage of the signal.

The level of linearity in the UMZ-558-A16-G is maintained by a combination of the timing capacitor, loop-filter, and buffer amplifier. In addition, the device features a temperature sensing circuit to compensate for changes in the ambient temperature which can lead to changes in the output frequency.

The UMZ-558-A16-G is an extremely versatile VCO with excellent linearity and stability over temperature. It provides superior performance in many electromagnetic and RF applications, such as automotive applications and communication systems. It is an ideal choice for those looking for a reliable, high-performance VCO.

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