CVCO55BE-1100-2100

VCOs (Voltage Controlled Oscillators)

A Voltage Controlled Oscillator (VCO) is an electronic oscillator whose frequency of output is linearly proportional to the voltage applied to its control input. VCOs possess different characteristics and can be used in various applications. In this article, we shall discuss the CVCO55BE-1100-2100, a voltage controlled oscillator, and its application field and working principle.

CVCO55BE-1100-2100

The CVCO55BE-1100-2100 is a voltage controlled oscillator designed and manufactured by Texas Instruments that operates from 1100 to 2100 MHz, with a frequency control voltage of 0 to 5 V, and a turnaround time of 55ns. It has a dynamic tuning range of 80+ MHz, a spurious level of -68 dBc, a stored energy of 18pJ, a switching speed of 40ns and a tuning speed of 200kHz/V. The CVCO55BE-1100-2100 is available in a 6-pad HSP surface mount package.

Application Field

Voltage controlled oscillators like the CVCO55BE-1100-2100 find application in the design and optimization of a range of components and devices, depending on their characteristic frequency. These can range from filters, synthesizers, and transmitters, to receivers, voltage controlled amplifiers, spectrum analyzers, communication systems, and test instrumentation. This particular VCO is ideal for applications where a low input frequency, a wide tuning range, low phase noise, and high switching speed are desired.

Working Principle

The working principle of VCOs like the CVCO55BE-1100-2100 relies upon the frequency variation caused by varying the control voltage. As the applied voltage is increased or decreased, the circuit oscillates at a frequency that is directly proportional to the magnitude of the applied voltage. This is due to its positive feedback nature, wherein the output signal is returned to the input so as to form a loop. The feedback oscillator creates two paths – one that provides the stable output signal, and another which assists in the frequency variation to the applied control voltage.

Conclusion

To conclude, the CVCO55BE-1100-2100 is a voltage controlled oscillator that is used in a range of applications where low input frequency, wide tuning range, low phase noise, and high switching speed are desired. This particular VCO has a frequency control voltage of 0 to 5 V, a dynamic tuning range of 80+ MHz, a turnaround time of 55ns, a spurious level of -68 dBc, a stored energy of 18pJ, and a tuning speed of 200kHz/V. It is available in a 6-pad HSP surface mount package. The working principle of the CVCO55BE-1100-2100 is based on the frequency variation of the circuit output caused by varying the applied control voltage.