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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제품설명 단가 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 제품 번호 163-0465
제조사 부품 번호MC100EL1648DG
제조사ON Semiconductor
₩12,458.90
Each (In a Tube of 98)
수량
VCO 1.1GHz - 6pF SOIC ECL -40°C 85°C 5 x 4 x 1.5mm 1.5mm - - -
RS 제품 번호 806-2567
제조사 부품 번호MC100EL1648DG
제조사ON Semiconductor
₩14,453.75
Each
수량
VCO 1.1GHz - 6pF SOIC ECL -40°C 85°C 5 x 4 x 1.5mm 1.5mm - - -
RS 제품 번호 917-3438
제조사 부품 번호LTC6908CS6-1#TRMPBF
제조사Analog Devices
₩3,434.80
Each (On a Reel of 500)
수량
VCO 50 → 10MHz 300ppm/√kh 5pF TSOT-23 CMOS -40°C 85°C 2.9 x 1.5 x 0.9mm 0.9mm - - -
RS 제품 번호 423-462
제조사 부품 번호LTC6908CS6-1#TRMPBF
제조사Analog Devices
₩4,891.80
Each
수량
VCO 50 → 10MHz 300ppm/√kh 5pF TSOT-23 CMOS -40°C 85°C 2.9 x 1.5 x 0.9mm 0.9mm - - -
RS 제품 번호 923-2473
제조사 부품 번호SN74LS629N
₩6,779.70
Each (In a Tube of 25)
수량
- - - - SOIC - 0°C 70°C 19.3 x 6.35 x 4.57mm 4.57mm - - -
RS 제품 번호 442-870
제조사 부품 번호SN74LS629N
₩8,661.40
Each
수량
VCO 1.1 → 25MHz - 45pF PDIP Squarewave 0°C 70°C 19.3 x 6.35 x 4.57mm 4.57mm - - -
RS 제품 번호 672-1558
제조사 부품 번호FVXO-HC53BR-44.736
제조사Fox Electronics
₩4,837.55
Each
수량
VCO 44.736MHz ±50ppm 15pF - HCMOS -40°C 85°C 5 x 3.2 x 1.4mm 1.4mm - - -
RS 제품 번호 862-6152
제조사 부품 번호HMC509LP5E
제조사Analog Devices
₩52,255.15
Each
수량
VCO - - - QFN - -40°C 85°C 5.1 x 5.1 x 1mm 1mm - - Hittite
RS 제품 번호 145-1166
제조사 부품 번호SN74LS624N
₩4,650.00
Each (In a Tube of 25)
수량
VCO 1.1 → 25MHz - 45pF PDIP Squarewave 0°C 70°C 19.3 x 6.35 x 4.57mm 4.57mm - - -
RS 제품 번호 190-5970
제조사 부품 번호MAX2608EUT+T
제조사Maxim Integrated
₩3,349.55
Each (In a Pack of 5)
수량
VCO 300 → 500MHz - 0.5 SOT-23 - -40°C 85°C 3 x 1.75 x 1.3mm 1.3mm - - -
RS 제품 번호 162-7068
제조사 부품 번호SN74LS628N
₩3,983.50
Each (In a Tube of 25)
수량
- 1.1 → 25MHz - 45pF SOIC Squarewave 0°C 70°C 19.3 x 6.35 x 4.57mm 4.57mm - - -
RS 제품 번호 160-2662
제조사 부품 번호HMC511LP5E
제조사Analog Devices
₩41,646.95
Each (On a Reel of 50)
수량
VCO - - - QFN - -40°C 85°C 5.1 x 5.1 x 1mm 1mm - - Hittite
RS 제품 번호 160-2661
제조사 부품 번호HMC510LP5E
제조사Analog Devices
₩40,408.50
Each (On a Reel of 50)
수량
VCO - - - QFN - -40°C 85°C 5.1 x 5.1 x 1mm 1mm - - Hittite
RS 제품 번호 190-4913
제조사 부품 번호MAX2608EUT+T
제조사Maxim Integrated
₩1,284.95
Each (On a Reel of 2500)
수량
VCO 300 → 500MHz - 0.5 SOT-23 - -40°C 85°C 3 x 1.75 x 1.3mm 1.3mm - - -
RS 제품 번호 672-1520
제조사 부품 번호FVXO-HC53BR-8.192
제조사Fox Electronics
₩8,215.00
Each
수량
VCO 8.192MHz ±50ppm 15pF - HCMOS -40°C 85°C 5 x 3.2 x 1.4mm 1.4mm - - -
RS 제품 번호 672-1390
제조사 부품 번호FVXO-HC73BR-27
제조사Fox Electronics
₩7,393.50
Each
수량
VCO 27MHz ±50ppm 15pF - HCMOS -40°C 85°C 7 x 5 x 1.4mm 1.4mm - - -
RS 제품 번호 862-6164
제조사 부품 번호HMC511LP5E
제조사Analog Devices
₩52,255.15
Each
수량
VCO - - - QFN - -40°C 85°C 5.1 x 5.1 x 1mm 1mm - - Hittite
RS 제품 번호 862-6089
제조사 부품 번호HMC385LP4E
제조사Analog Devices
₩19,153.35
Each
수량
VCO 2.25 → 2.5GHz - - QFN - -40°C 85°C 4.1 x 4.1 x 1mm 1mm - - Hittite
RS 제품 번호 862-6155
제조사 부품 번호HMC507LP5E
제조사Analog Devices
₩50,227.75
Each
수량
VCO - - - QFN - -40°C 85°C 5.1 x 5.1 x 1mm 1mm - - Hittite
RS 제품 번호 905-5857
제조사 부품 번호CVCO55BE-0510-0770
제조사Crystek
₩34,431.70
Each
수량
VCO 770MHz - - SMD VCO -40°C 85°C 12.7 x 12.7 x 3.81mm 3.81mm 9.45V dc 8.55V dc -