VCO Oscillators

VCO (Voltage Controlled Oscillators) can also be known as silicon oscillators or VCOs. They are electronic devices designed to control oscillation frequency by varying the DC voltage input. Oscillation frequencies can be adjusted from a few Hz to hundreds of GHz. The VCO's can also work as modulators of both frequency and phase by delivering a modulating signal to the control input. Voltage Controlled Oscillators are also commonly used as an integral part of the phase-locked loop.

What are the types of VCO Oscillators?

Voltage Controlled Oscillators can be categorized into 2 types according to the type of waveform generated:

Linear / Harmonic Oscillator - this type of oscillator generates a sinusoidal type of waveform.

Relaxation Oscillator - This type of VCO is able to generate a triangular waveform or a sawtooth waveform.

What are the voltage controlled oscillators used for?

There are several typical applications of VCOs and they are:

  • Function Generators
  • Phase-Locked Loops
  • Tone Generators
  • Clock Generators
  • Electronic Jamming Equipment
  • Frequency Synthesizers

How to choose the right VCO?

  • Some key parameters that need to be considered before selecting the VCO are:
  • The Frequency Range - the minimum and maximum tunable oscillation frequency (MHz)
  • Output Power - The output power produced by the VCO (dbm)
  • Tuning Voltage - the voltage level applied to the device to tune and set the desired oscillation frequency (V)
  • Tunning Sensitivity - the level of variation of the oscillation frequency with different voltages applied to the VCO (MHz/V)
  • Supply Voltage - a DC Voltage required to correct operation (V)
  • Pulling - drift in the output frequency due to load variation (MHz/V)
  • Pushing - drift in the output frequency due to variation in the supply voltage (MHz/V)
  • Phase Noise - a clarity of the output signal from the VCO (dBc/Hz)

...
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Beskrivning Pris Oscillator Type Output Frequency Frequency Stability Load Capacitance Package Type Output Level Minimum Operating Temperature Maximum Operating Temperature Dimensions Height Maximum Operating Supply Voltage Minimum Operating Supply Voltage Series
RS-artikelnummer 423-462
Tillv. art.nrLTC6908CS6-1#TRMPBF
VarumärkeAnalog Devices
35,26 kr
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VCO 50 kHz → 10 MHz 300ppm/√kh 5pF TSOT-23 CMOS -40 °C +85 °C 2.9 x 1.5 x 0.9mm 0.9mm 5.5 V 2.25 V -
RS-artikelnummer 917-3438
Tillv. art.nrLTC6908CS6-1#TRMPBF
VarumärkeAnalog Devices
33,654 kr
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VCO 50 kHz 10 MHz 300ppm/√kh 5pF TSOT-23 CMOS -40 °C +85 °C 2.9 x 1.5 x 0.9mm 0.9mm 5.5 V 2.25 V -
RS-artikelnummer 160-2704
Tillv. art.nrHMC732LC4B
VarumärkeAnalog Devices
1 552,034 kr
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VCO 6 → 12 GHz - - SMT - -40 °C +85 °C 4 x 4 x 1.2mm 1.2mm 5.5 V - Hittite
RS-artikelnummer 131-1242
Tillv. art.nrHMC1163LP5E
VarumärkeAnalog Devices
324,88 kr
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VCO 9.65 → 10.41 GHz - - LFCSP - -40 °C +85 °C 5.1 x 5.1 x 0.95mm 0.95mm 5.5 V - HMC1163
RS-artikelnummer 862-6155
Tillv. art.nrHMC507LP5E
VarumärkeAnalog Devices
250,63 kr
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VCO 3.325 → 3.825 (Output 2) GHz, 6.65 → 7.65 (Output 1) GHz - - QFN - -40 °C +85 °C 5.1 x 5.1 x 1mm 1mm 5.25 V 4.75 V Hittite
RS-artikelnummer 862-6164
Tillv. art.nrHMC511LP5E
VarumärkeAnalog Devices
345,67 kr
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VCO 4.525 → 5.075 (Output 2) GHz, 9.05 → 10.15 (Output 1) GHz - - QFN - -40 °C +85 °C 5.1 x 5.1 x 1mm 1mm 5.25 V 4.75 V Hittite
RS-artikelnummer 160-2659
Tillv. art.nrHMC509LP5E
VarumärkeAnalog Devices
354,662 kr
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- 3.9 → 4.4 (Output 2) GHz, 7.8 → 8.8 (Output 1) GHz - - QFN - -40 °C +85 °C 5.1 x 5.1 x 1mm 1mm 5.25 V 4.75 V Hittite
RS-artikelnummer 862-6433
Tillv. art.nrHMC732LC4B
VarumärkeAnalog Devices
1 594,95 kr
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VCO 6 → 12 GHz - - SMT - -40 °C +85 °C 4 x 4 x 1.2mm 1.2mm 5.5 V - Hittite
RS-artikelnummer 862-6152
Tillv. art.nrHMC509LP5E
VarumärkeAnalog Devices
321,06 kr
Each
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VCO 3.9 → 4.4 (Output 2) GHz, 7.8 → 8.8 (Output 1) GHz - - QFN - -40 °C +85 °C 5.1 x 5.1 x 1mm 1mm 5.25 V 4.75 V Hittite
RS-artikelnummer 862-6186
Tillv. art.nrHMC584LP5E
VarumärkeAnalog Devices
250,63 kr
Each
Enheter
VCO 6.25 → 6.95 (Output 2) GHz, 12.5 → 13.9 (Output 1) GHz - - QFN - -40 °C +85 °C 5.1 x 5.1 x 1mm 1mm 5.25 V 4.75 V Hittite
RS-artikelnummer 160-9957
Tillv. art.nrHMC385LP4E
VarumärkeAnalog Devices
86,152 kr
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- 2.25 → 2.5 GHz - - QFN - -40 °C +85 °C 4.1 x 4.1 x 1mm 1mm 3.25 V 2.75 V Hittite
RS-artikelnummer 160-2662
Tillv. art.nrHMC511LP5E
VarumärkeAnalog Devices
286,689 kr
Each (On a Reel of 50)
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VCO 4.525 → 5.075 (Output 2) GHz, 9.05 → 10.15 (Output 1) GHz - - QFN - -40 °C +85 °C 5.1 x 5.1 x 1mm 1mm 5.25 V 4.75 V Hittite
RS-artikelnummer 862-6089
Tillv. art.nrHMC385LP4E
VarumärkeAnalog Devices
87,56 kr
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Enheter
VCO 2.25 → 2.5 GHz - - QFN - -40 °C +85 °C 4.1 x 4.1 x 1mm 1mm 3.25 V 2.75 V Hittite
RS-artikelnummer 862-6161
Tillv. art.nrHMC510LP5E
VarumärkeAnalog Devices
335,12 kr
Each
Enheter
VCO 4.225 → 4.775 (Output 2) GHz, 8.45 → 9.55 (Output 1) GHz - - QFN - -40 °C +85 °C 5.1 x 5.1 x 1mm 1mm 5.25 V 4.75 V Hittite
RS-artikelnummer 862-6417
Tillv. art.nrHMC586LC4B
VarumärkeAnalog Devices
2 386,06 kr
Each
Enheter
VCO 4 → 8 GHz - - SMT - -40 °C +85 °C 4 x 4 x 1.2mm 1.2mm 5.5 V - Hittite
RS-artikelnummer 160-2702
Tillv. art.nrHMC586LC4B
VarumärkeAnalog Devices
2 321,847 kr
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VCO 4 → 8 GHz - - SMT - -40 °C +85 °C 4 x 4 x 1.2mm 1.2mm 5.5 V - Hittite
RS-artikelnummer 160-2670
Tillv. art.nrHMC584LP5E
VarumärkeAnalog Devices
253,092 kr
Each (On a Reel of 50)
Enheter
VCO 6.25 → 6.95 (Output 2) GHz, 12.5 → 13.9 (Output 1) GHz - - QFN - -40 °C +85 °C 5.1 x 5.1 x 1mm 1mm 5.25 V 4.75 V Hittite
RS-artikelnummer 160-2661
Tillv. art.nrHMC510LP5E
VarumärkeAnalog Devices
354,662 kr
Each (On a Reel of 50)
Enheter
VCO 4.225 → 4.775 (Output 2) GHz, 8.45 → 9.55 (Output 1) GHz - - QFN - -40 °C +85 °C 5.1 x 5.1 x 1mm 1mm 5.25 V 4.75 V Hittite