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 917-3438
Tillv. art.nrLTC6908CS6-1#TRMPBF
VarumärkeAnalog Devices
33,654 kr
Each (On a Reel of 500)
Enheter
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 423-462
Tillv. art.nrLTC6908CS6-1#TRMPBF
VarumärkeAnalog Devices
35,26 kr
Each
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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 -
Nytt
RS-artikelnummer 190-4913
Tillv. art.nrMAX2608EUT+T
VarumärkeMaxim Integrated
10,017 kr
Each (On a Reel of 2500)
Enheter
VCO 300 500 MHz - 0.5pF SOT-23 - -40 °C +85 °C 3 x 1.75 x 1.3mm 1.3mm - 2.7 V -
RS-artikelnummer 905-5857
Tillv. art.nrCVCO55BE-0510-0770
VarumärkeCrystek
229,75 kr
Each
Enheter
VCO 770 MHz - - SMD VCO -40 °C +85 °C 12.7 x 12.7 x 3.81mm 3.81mm 9.45 V dc 8.55 V dc -
RS-artikelnummer 862-6186
Tillv. art.nrHMC584LP5E
VarumärkeAnalog Devices
259,46 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 799-2811
Tillv. art.nrMAX2750EUA+
VarumärkeMaxim Integrated
62,97 kr
Each
Enheter
VCO 2400 2500 MHz - 220pF μMAX - -40 °C +85 °C 3.1 x 3.1 x 0.95mm 0.95mm 5.5 V 2.7 V -
RS-artikelnummer 862-6089
Tillv. art.nrHMC385LP4E
VarumärkeAnalog Devices
128,11 kr
Each
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 145-1166
Tillv. art.nrSN74LS624N
VarumärkeTexas Instruments
32,327 kr
Each (In a Tube of 25)
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VCO 1.1 → 25 MHz - 45pF PDIP Squarewave 0 °C +70 °C 19.3 x 6.35 x 4.57mm 4.57mm 5.25 V 4.75 V -
RS-artikelnummer 160-2670
Tillv. art.nrHMC584LP5E
VarumärkeAnalog Devices
259,529 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 163-0465
Tillv. art.nrMC100EL1648DG
VarumärkeON Semiconductor
77,428 kr
Each (In a Tube of 98)
Enheter
VCO 1.1 GHz - 6pF SOIC ECL -40 °C +85 °C 5 x 4 x 1.5mm 1.5mm 5.5 V 4.2 V -
RS-artikelnummer 923-2473
Tillv. art.nrSN74LS629N
VarumärkeTexas Instruments
27,777 kr
Each (In a Tube of 25)
Enheter
- - - - SOIC - 0 °C +70 °C 19.3 x 6.35 x 4.57mm 4.57mm 5.25 V 4.75 V -
RS-artikelnummer 862-6152
Tillv. art.nrHMC509LP5E
VarumärkeAnalog Devices
321,06 kr
Each
Enheter
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 806-2567
Tillv. art.nrMC100EL1648DG
VarumärkeON Semiconductor
90,06 kr
Each
Enheter
VCO 1.1 GHz - 6pF SOIC ECL -40 °C +85 °C 5 x 4 x 1.5mm 1.5mm 5.5 V 4.2 V -
RS-artikelnummer 131-1242
Tillv. art.nrHMC1163LP5E
VarumärkeAnalog Devices
324,88 kr
Each
Enheter
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 862-6161
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 862-6164
Tillv. art.nrHMC511LP5E
VarumärkeAnalog Devices
345,67 kr
Each
Enheter
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 160-2661
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
RS-artikelnummer 442-870
Tillv. art.nrSN74LS629N
VarumärkeTexas Instruments
29,46 kr
Each
Enheter
VCO 1.1 → 25 MHz - 45pF PDIP Squarewave 0 °C +70 °C 19.3 x 6.35 x 4.57mm 4.57mm 5.25 V 4.75 V -
Nytt
RS-artikelnummer 190-5970
Tillv. art.nrMAX2608EUT+T
VarumärkeMaxim Integrated
20,10 kr
Each (In a Pack of 5)
Enheter
VCO 300 500 MHz - 0.5pF SOT-23 - -40 °C +85 °C 3 x 1.75 x 1.3mm 1.3mm - 2.7 V -
RS-artikelnummer 672-1390
Tillv. art.nrFVXO-HC73BR-27
VarumärkeFox Electronics
52,89 kr
Each
Enheter
VCO 27 MHz ±50ppm 15pF - HCMOS -40 °C +85 °C 7 x 5 x 1.4mm 1.4mm 3.465 V 3.135 V -
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The range of Voltage control Oscillators (VCO) by Analog Devices Hittite range are GaAs InGaP Heterojunction Bipolar Transistors (HBT) MMIC VCOs with integrated resonators, negative resistance devices, varactor diodes, buffer amplifiers, and some feature half frequency and divide-by-4 outputs.
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Description:
The range of Voltage control Oscillators (VCO) by Analog Devices Hittite range are GaAs InGaP Heterojunction Bipolar Transistors (HBT) MMIC VCOs with integrated resonators, negative resistance devices, varactor diodes, buffer amplifiers, and some feature half frequency and divide-by-4 outputs.
The range of Voltage control Oscillators (VCO) by ...
Description:
The range of Voltage control Oscillators (VCO) by Analog Devices Hittite range are GaAs InGaP Heterojunction Bipolar Transistors (HBT) MMIC VCOs with integrated resonators, negative resistance devices, varactor diodes, buffer amplifiers, and some feature half frequency and divide-by-4 outputs.
The range of Voltage control Oscillators (VCO) by ...
Description:
The range of Voltage control Oscillators (VCO) by Analog Devices Hittite range are GaAs InGaP Heterojunction Bipolar Transistors (HBT) MMIC VCOs with integrated resonators, negative resistance devices, varactor diodes, buffer amplifiers, and some feature half frequency and divide-by-4 outputs.