CVCO55CC-1690-1750

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Voltage Controlled Oscillators, more commonly known as VCOs, are electronic devices that are used to convert voltage into a periodic waveform. A VCO provides a controlled frequency output that can vary with an input voltage. The CVCO55CC-1690-1750 is a voltage controlled oscillator (VCO) chip that is used in a variety of applications. This article looks at the application field of the CVCO55CC-1690-1750 and its working principle.

Applications

The CVCO55CC-1690-1750 is a high-performance monolithic voltage controlled oscillator (VCO) designed for use in communication and data-conversion systems. It has a frequency range spanning 1690 MHz to 1750 MHz and is commonly used in mobile communication systems such as GSM, CDMA and 3G. It is also used in Wi-Fi and GPS systems, as well as in wireless local area networks (WLANs) and wireless personal area networks (WPANs).

The CVCO55CC-1690-1750 is also used in satellite signaling systems, digital radio applications such as Digital Audio Broadcasting (DAB) and Digital Video Broadcasting terrestrial (DVB-T), and terrestrial digital networks including Long Term Evolution (LTE). It is also suited for instrumentation, medical, and industrial applications.

Working principle

The CVCO55CC-1690-1750 is based on a varactor-tuned oscillator topology. A varactor is a semiconductor diode, which functions as a voltage-dependent capacitor. The VCO oscillates at a frequency that is determined by the capacitance of the varactor. The capacitance of the varactor is, in turn, determined by the voltage applied to its control port, which provides the “voltage control” of the oscillator.

The CVCO55CC-1690-1750 has integrated voltage controlled oscillator (VCO) and voltage controlled amplifier (VCA) blocks. Amplitude adjustment of the signal is achieved by using the VCA. The device also has integrated loop filter components which provide superior phase noise performance and facilitates loop stabilization of the oscillator output. The CVCO55CC-1690-1750 also includes a temperature compensation circuit that keeps the oscillator operating frequency stable over temperature.

The frequency (or tuning voltage) and amplitude of the circuit can be adjusted to match the required output frequency and amplitude. The device also has an integrated power detector that allows the user to detect spurious noise and unwanted signal levels. This feature is especially useful when tuning the oscillator in an automated production environment.

The CVCO55CC-1690-1750 is a robust and reliable voltage controlled oscillator that can be used in a variety of communication, data conversion, and instrumentation applications. It’s wide tuning range ensures that it can be used in a wide range of applications and its integrated temperature compensation circuit ensures superior phase noise performance and stability even in extreme temperatures.

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