UMX-1901-D16-G

Due to market price fluctuations, if you need to purchase or consult the price. You can contact us or emial to us:   sales@allicdata.com

Voltage Controlled Oscillators (VCOs)

Voltage Controlled Oscillators (VCOs) are electronic oscillators whose oscillation frequency is determined by an externally applied control voltage. This type of oscillator can be used to generate a wide range of frequencies and can be adjusted with precision and speed. They are widely used in communication systems, radar systems, instrumentation, and other applications.

The UMX-1901-D16-G VCO, made by Toko Electronics, is a high performance, low noise, low power VCO. The frequency range is adjustable between 2 MHz to 10 MHz, with a control voltage range between 0v to 10V and operating temperature range between -20°C to 70°C. The UMX-1901-D16-G features an integrated charge pump circuit, which provides a buffer between the external power supply and the internal voltage controlling the oscillator.

Application Field

The UMX-1901-D16-G is suitable for various applications requiring wide frequency tuning over a wide voltage range. It is used in systems such as RF transmitters, receiver synthesizers, communication systems, instrumentation systems, frequency converters, and radar circuits. With the built-in charge-pump circuit, it can be used in systems requiring the generation of very low frequencies. The VCO can also be used in portable instruments and other applications with restricted power supply requirements.

Working Principle

The UMX-1901-D16-G allows the frequency of oscillation to be adjusted by changing the externally applied control voltage. This is accomplished by a voltage controlled oscillator (VCO). In the VCO, a charge carrier, such as an electron, is directed via a channel along two branches. One branch is set to a voltage lower than the tune voltage and the other to a higher voltage. By adjusting the applied control voltage, the carrier prefers to traverse one of the two branches, resulting in an oscillation frequency change. The UMX-1901-D16-G VCO can be modeled as a single-stage oscillator and can be characterized by three parameters: a tuning voltage (V TUNE ), a tuning capacitor (C TUNE ), and an output capacitor (C OUT ).

The internal charge-pump circuit helps to maintain a steady voltage control over the oscillator, even in the presence of power supply variations. The circuit also ensures that the VCO operates at a standard logic level. In addition, it can be used to reduce changes in frequency due to process variations and temperature swings. This makes the UMX-1901-D16-G an ideal choice for applications with long-term stability requirements.

The specific data is subject to PDF, and the above content is for reference