500DUAB100M000ACFR

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Oscillators: 500DUAB100M000ACFR Application Field and Working Principle

In the field of oscillators, the 500DUAB100M000ACFR is a precision voltage-controlled oscillator (VCO) based on a MEMS resonator and tailored for 4.7 to 6.7GHz frequencies. It has a typical phase noise of -115 dBc/Hz at 100 kHz offset. It is designed for cost-sensitive applications, such as MAC processers, timing source, and cellular basestations. In addition, this VCO is designed with low phase noise, low power consumption, and a wide tuning range. This makes it a good choice, especially for infrastructure applications.

Application Field

The 500DUAB100M000ACFR oscillator is widely used in many application fields such as communications, automotive electronics, and computing systems. This VCO is most applicable to radio frequency (RF) systems including MAC/BB/PHY processing, timing source, and cellular basestations. In the automotive sector, this device is suitable for tire pressure monitoring systems, radar applications, and GPS navigation. The 500DUAB100M000ACFR oscillator can also be used in a variety of computing systems for various operations such as network synchronization, clock signal switching, and processor control.

Working Principle

The 500DUAB100M000ACFR oscillator is based on a MEMS resonator and adopts a voltage-controlled oscillator (VCO) topology. The MEMS resonator is a chip-level component with few external components needed. It consists of movable electrodes overlaid with a metalized shield. When the electrodes vibrate, a voltage is generated which makes the signal oscillate. Furthermore, the frequency of oscillation can be adjusted by applying a voltage to the external pins. The oscillator voltage is supplied by an external voltage regulator.

Moreover, the phase noise of the 500DUAB100M000ACFR oscillator is reduced by applying a special noise rejection technique. The technique takes the noise from the DC bias voltage and eliminates it through a series of bias network circuits. This method helps to reduce the phase noise by around 12 dB. Additionally, a temperature-induced tuning voltage is applied to the MEMS resonator, allowing for a higher tuning range.

Conclusion

The 500DUAB100M000ACFR oscillator is a reliable and cost-efficient device for many different applications. This VCO utilizes a MEMS resonator and voltage-controlled oscillator (VCO) topology for its operation. It has a wide tuning range and can be used for network synchronisation, clock signal switching, processor control, and other operations. The special noise rejection technique helps to reduce the phase noise significantly, making the 500DUAB100M000ACFR suitable for applications in the automotive, communications, and computing fields.

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