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INTRODUCTION TO VCO
A VCO (Voltage Controlled Oscillator) is a free oscillator whose output frequency is variable by means of a DC tuning voltage supplied externally to the VCO, the varicap diode contained within the VCO is the component responsible for making the frequency variation. The frequency variation is possible because the varicap diode acts as a variable capacitor on the LC circuit which determines the oscillation frequency of the VCO itself, we can therefore say that the VCO was born with the appearance of varicap diodes (Yig and Gunn apart).
With modern so-called hyperabrupt varicap diodes it is possible to obtain VCOs with large bandwidths, in fact these varicaps have a very large capacitance range Δc > 15 (Δc = ratio of variation between min. and max. capacitance), there are also diodes optimised for low tuning voltages of 1 to 4 V for modern wireless applications.
FM audio (or FM video) modulation can also be applied on top of the tuning voltage; other VCOs have a separate modulation pin simply as a matter of convenience or to have a tuning sensitivity (MHz / V) different from the odulation sensitivity. The effect of modulation in a VCO is perfectly similar to the effect of frequency variation via the dc applied to the varicap, in fact, if the control dc voltage were just a little dirty with mains residual, there would be residual background modulation. The modulation bandwidth depends mainly on the time constant between the modulation input and the varicap.
As a rule of thumb, a VCO with a wide bandwidth is mainly used for instrumentation, whereas a VCO with a narrow bandwidth is used for FM modulations, VCOs with narrow bandwidths have better phase noise. VCOs with a DR ceramic resonator have even more limited frequency excursions but excellent phase noise and better intrinsic stability due to the higher Q of the DR resonator compared to a classic LC circuit. The DR resonator behaves exactly like a λ/4 cavity by oscillating in TEM mode, thanks to ceramics with a high εr value of 20 to 90 it is possible to achieve true ultra-miniature cavities (see DR resonators with square cross-section).
The lowest frequency in a VCO is obtained with zero tuning voltage, i.e. maximum varicap capacitance, and the highest frequency with high tuning voltage, i.e. minimum varicap capacitance; as an empirical fact, it follows that the lowest frequency cannot be lowered any further, while a slight overrange is possible for the highest frequency.
Linear tuning VCOs (MHz response / constant V over the entire band) are more complicated to obtain, they are mainly used for instrumentation and with generally very wide bands, in a PLL chain they are used with phase comparators where it is necessary to have a constant loop gain, linear response VCOs are also used where it is essential to have constant modulation over the entire operating band.
VCOs constitute a delicate and important circuit in the design of synthesisers and equipment in general for RF, their behaviour together with their performance (phase noise) often determine the performance of the entire design, and only by means of complicated synthesis networks is it possible to clean up the noise of the VCO itself.
VCOs find applications in synthesisers for generating PLL-linked frequencies, in the OL circuit of receivers and spectrum analysers, but also in bugs, small video transmitters, etc.
To make the best use of VCOs and obtain the best performance, 2 very important rules must be observed separate the VCO's RF output very well from the "outside world" by means of a suitable buffer stage with high inverse isolation (see parameters S12 or reverse isolation in MMICs), filter the power supply and modulation with the utmost care; it would be better to be able to power it by means of a battery with shielded and very short wires filtering by means of appropriate EMI filters is very important, for example let's say we have a VCO with a tuning sensitivity of 10MHz / V, this means that a ripple on the tuning voltage of only 1 mV is enough to have a residual modulation of as much as 10 KHz.
The most important specification in a VCO is low phase noise it depends mainly on 3 factors:
In addition, in order to guarantee low phase noise, the capacitors that act as a divider and the coupling with the active element also play a very important role. In fact, it is not enough to have a resonator with a high no-load Q, the real trick is to find the right coupling with the circuit.
Phase noise is expressed in dBc / Hz ( dB carrier per Hz ) which means how much noise is contained at a certain distance from the carrier considering a unit bandwidth of 1 Hz and related to the carrier level.
It is therefore to be considered as a relative number that in a nutshell tells how many dB the phase noise is attenuated with respect to the carrier level as if it were measured by a receiver with 1 Hz bandwidth.
Many special components are available for the construction of VCOs up to microwaves, for example:
Order code: | 01516DA |
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1230 - 1520 MHz VCO oscillator Alps UCVE1-632A |
Conditions: | N- (The product is brand new but it comes from an old production) |
Oscillation freq. (min.): | 1230 MHz |
Oscillation freq. (max.): | 1520 MHz |
Tuning voltage (min.): | 0 V |
Tuning voltage (max.): | 6 V |
Supply voltage: | 6 V |
Supply current: | 27 mA |
Output level (typ.): | 1.8 dBm |
Sensitivity : | 22 MHz/V |
Type: | PCB |
Mounting: | SMD |
Connectors : | pin |
Order code: | 09CA |
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1430 - 1540 MHz VCO oscillator Alps UCSE2X112A |
Conditions: | N- (The product is brand new but it comes from an old production) |
Oscillation freq. (min.): | 1430 MHz |
Oscillation freq. (max.): | 1540 MHz |
Tuning voltage (min.): | 0 V |
Tuning voltage (max.): | 7 V |
Supply voltage: | 6 V |
Supply current: | 15 mA |
Output level (typ.): | 4.8 dBm |
Sensitivity : | 15 MHz/V |
Type: | PCB |
Mounting: | SMD |
Connectors : | pin |
Order code: | 10AT-0226-A1 |
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210 - 240 MHz VCO oscillator KYOCERA 10AT-0226-A1 |
Conditions: | N- (The product is brand new but it comes from an old production) |
Oscillation freq. (min.): | 210 MHz |
Oscillation freq. (max.): | 240 MHz |
Tuning voltage (min.): | 0.5 V |
Tuning voltage (max.): | 6 V |
Supply voltage: | 8 V |
Supply current: | 12 mA |
Output level (typ.): | -1 dBm |
Sensitivity : | 6 MHz/V |
Type: | PCB |
Mounting: | SMD |
Connectors : | pin |
Order code: | 10AT-0340-A1 |
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323 - 350 MHz VCO oscillator KYOCERA 10AT-0340-A1 |
Conditions: | N- (The product is brand new but it comes from an old production) |
Oscillation freq. (min.): | 323 MHz |
Oscillation freq. (max.): | 350 MHz |
Tuning voltage (min.): | 0 V |
Tuning voltage (max.): | 5 V |
Supply voltage: | 9 V |
Supply current: | 14 mA |
Output level (typ.): | 3.5 dBm |
Sensitivity : | 40 kHz/V |
Type: | PCB |
Mounting: | SMD |
Connectors : | pin |
Order code: | 10AT-0493-A1 |
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475 - 510 MHz VCO oscillator KYOCERA 10AT-0493-A1 |
Conditions: | N- (The product is brand new but it comes from an old production) |
Oscillation freq. (min.): | 475 MHz |
Oscillation freq. (max.): | 510 MHz |
Tuning voltage (min.): | 0.5 V |
Tuning voltage (max.): | 5 V |
Supply voltage: | 6 V |
Supply current: | 11 mA |
Output level (typ.): | 3 dBm |
Sensitivity : | 100 kHz/V |
Type: | PCB |
Mounting: | SMD |
Connectors : | pin |
Order code: | 1748FA |
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Dual band VCO oscillator, 855 - 1020 MHz and 1660 - 1970 MHz Samsung VOF1748C28FRA |
Conditions: | N- (The product is brand new but it comes from an old production) |
Oscillation freq. (min.): | 855 MHz |
Oscillation freq. (max.): | 1020 MHz |
Tuning voltage (min.): | 0 V |
Tuning voltage (max.): | 6 V |
Supply voltage: | 2.8 V |
Supply current: | 22 mA |
Output level (typ.): | 6 dBm |
Sensitivity : | 30 MHz/V |
Type: | PCB |
Mounting: | SMD |
Connectors : | pin |
Order code: | 432CT-400 |
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407 - 480 MHz VCO oscillator |
Conditions: | N- (The product is brand new but it comes from an old production) |
Oscillation freq. (min.): | 407 MHz |
Oscillation freq. (max.): | 480 MHz |
Tuning voltage (min.): | 0.5 V |
Tuning voltage (max.): | 10 V |
Supply voltage: | 6 V |
Supply current: | 10 mA |
Output level (typ.): | 0 dBm |
Sensitivity : | 9 MHz/V |
Type: | PCB |
Mounting: | SMD |
Connectors : | pin |
Order code: | 81100-01590 |
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1470 - 1730 MHz VCO oscillator M/A-COM MLO81100-01590 |
Conditions: | N (The product is brand new) |
Oscillation freq. (min.): | 1470 MHz |
Oscillation freq. (max.): | 1730 MHz |
Tuning voltage (min.): | 0 V |
Tuning voltage (max.): | 9 V |
Supply voltage: | 9 V |
Supply current: | 24 mA |
Output level (typ.): | 0 dBm |
Sensitivity : | 37.5 MHz/V |
Type: | PCB |
Mounting: | SMD |
Connectors : | pin |
Order code: | 81100-01850 |
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1800 - 1900 MHz VCO oscillator M/A-COM MLO81100-01850 |
Conditions: | N- (The product is brand new but it comes from an old production) |
Oscillation freq. (min.): | 1800 MHz |
Oscillation freq. (max.): | 1900 MHz |
Tuning voltage (min.): | 0.5 V |
Tuning voltage (max.): | 4.5 V |
Supply voltage: | 5 V |
Supply current: | 13 mA |
Output level (typ.): | 0.5 dBm |
Sensitivity : | 50 MHz/V |
Type: | PCB |
Mounting: | SMD |
Connectors : | pin |
Order code: | 92B01 |
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820 - 860 MHz VCO oscillator Panasonic ENFVC192B01 |
Conditions: | N- (The product is brand new but it comes from an old production) |
Oscillation freq. (min.): | 820 MHz |
Oscillation freq. (max.): | 860 MHz |
Tuning voltage (min.): | 1 V |
Tuning voltage (max.): | 12 V |
Supply voltage: | 9 V |
Supply current: | 20 mA |
Output level (typ.): | 11.5 dBm |
Sensitivity : | 4 MHz/V |
Type: | PCB |
Mounting: | SMD |
Connectors : | pin |
Order code: | DDF-1748D |
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Dual band VCO oscillator, 860 - 985 MHz and 1655 - 1950 MHz KYOCERA YK512DDF0898M1748D |
Conditions: | N- (The product is brand new but it comes from an old production) |
Oscillation freq. (min.): | 860 MHz |
Oscillation freq. (max.): | 985 MHz |
Tuning voltage (min.): | 0 V |
Tuning voltage (max.): | 6 V |
Supply voltage: | 2.8 V |
Supply current: | 17 mA |
Output level (typ.): | 6 dBm |
Sensitivity : | 45 MHz/V |
Type: | PCB |
Mounting: | SMD |
Connectors : | pin |
Order code: | E-567B |
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900 - 1020 MHz VCO oscillator Alps E-567B |
Conditions: | N- (The product is brand new but it comes from an old production) |
Oscillation freq. (min.): | 900 MHz |
Oscillation freq. (max.): | 1020 MHz |
Tuning voltage (min.): | 0.5 V |
Tuning voltage (max.): | 5 V |
Supply voltage: | 5 V |
Supply current: | 18 mA |
Output level (typ.): | 0 dBm |
Sensitivity : | 20 MHz/V |
Type: | PCB |
Mounting: | SMD |
Connectors : | pin |
Order code: | E-910B |
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850 - 900 MHz VCO oscillator Alps URAE8-910B |
Conditions: | N- (The product is brand new but it comes from an old production) |
Oscillation freq. (min.): | 850 MHz |
Oscillation freq. (max.): | 900 MHz |
Tuning voltage (min.): | 1 V |
Tuning voltage (max.): | 12 V |
Supply voltage: | 9 V |
Supply current: | 40 mA |
Output level (typ.): | 10 dBm |
Sensitivity : | 4 MHz/V |
Type: | PCB |
Mounting: | SMD |
Connectors : | pin |
Order code: | E-994A |
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SMD VCO bandwidth from 1130 to 1450 MHz Alps URAE8-994A |
Conditions: | N- (The product is brand new but it comes from an old production) |
Oscillation freq. (min.): | 1130 MHz |
Oscillation freq. (max.): | 1450 MHz |
Tuning voltage (min.): | 0.5 V |
Tuning voltage (max.): | 7 V |
Supply voltage: | 6 V |
Supply current: | 25 mA |
Output level (typ.): | 3 dBm |
Sensitivity : | 30 MHz/V |
Type: | PCB |
Mounting: | SMD |
Connectors : | pin |
Order code: | E-B35F |
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1415 - 1560 MHz VCO oscillator Alps URAE8-B35F |
Conditions: | N- (The product is brand new but it comes from an old production) |
Oscillation freq. (min.): | 1415 MHz |
Oscillation freq. (max.): | 1560 MHz |
Tuning voltage (min.): | 0 V |
Tuning voltage (max.): | 10 V |
Supply voltage: | 9 V |
Supply current: | 27 mA |
Output level (typ.): | 0 dBm |
Sensitivity : | 20 MHz/V |
Type: | PCB |
Mounting: | SMD |
Connectors : | pin |
Order code: | E-B36A |
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1535 - 1750 MHz VCO oscillator Alps E-B36A |
Conditions: | N- (The product is brand new but it comes from an old production) |
Oscillation freq. (min.): | 1535 MHz |
Oscillation freq. (max.): | 1750 MHz |
Tuning voltage (min.): | 0 V |
Tuning voltage (max.): | 14 V |
Supply voltage: | 9 V |
Supply current: | 27 mA |
Output level (typ.): | 4.8 dBm |
Sensitivity : | 15 MHz/V |
Type: | PCB |
Mounting: | SMD |
Connectors : | pin |
Order code: | E-B50A |
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698 - 800 MHz VCO oscillator Alps E-B50A |
Conditions: | N- (The product is brand new but it comes from an old production) |
Oscillation freq. (min.): | 698 MHz |
Oscillation freq. (max.): | 800 MHz |
Tuning voltage (min.): | 0 V |
Tuning voltage (max.): | 12 V |
Supply voltage: | 8 V |
Supply current: | 15 mA |
Output level (typ.): | 3.7 dBm |
Type: | PCB |
Mounting: | SMD |
Connectors : | pin |
Order code: | E-B51B |
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1000 - 1100 MHz VCO oscillator Alps E-B51B |
Conditions: | N- (The product is brand new but it comes from an old production) |
Oscillation freq. (min.): | 1000 MHz |
Oscillation freq. (max.): | 1100 MHz |
Tuning voltage (min.): | 0 V |
Tuning voltage (max.): | 12 V |
Supply voltage: | 9 V |
Supply current: | 21 mA |
Output level (typ.): | 0 dBm |
Sensitivity : | 12.5 MHz/V |
Type: | PCB |
Mounting: | SMD |
Connectors : | pin |
Order code: | E-D07A |
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1470 - 1850 MHz VCO oscillator Alps E-D07A |
Conditions: | N- (The product is brand new but it comes from an old production) |
Oscillation freq. (min.): | 1470 MHz |
Oscillation freq. (max.): | 1850 MHz |
Tuning voltage (min.): | 0 V |
Tuning voltage (max.): | 8 V |
Supply voltage: | 7 V |
Supply current: | 15 mA |
Output level (typ.): | 3 dBm |
Sensitivity : | 30 MHz/V |
Type: | PCB |
Mounting: | SMD |
Connectors : | pin |
Order code: | E-D18A |
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1100 - 1400 MHz VCO oscillator Alps E-D18A |
Conditions: | N- (The product is brand new but it comes from an old production) |
Oscillation freq. (min.): | 1100 MHz |
Oscillation freq. (max.): | 1400 MHz |
Tuning voltage (min.): | 0.5 V |
Tuning voltage (max.): | 7 V |
Supply voltage: | 6 V |
Supply current: | 25 mA |
Output level (typ.): | 3 dBm |
Sensitivity : | 30 MHz/V |
Type: | PCB |
Mounting: | SMD |
Connectors : | pin |
Order code: | E-E03A |
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710 - 840 MHz VCO oscillator Alps E-E03A |
Conditions: | N- (The product is brand new but it comes from an old production) |
Oscillation freq. (min.): | 710 MHz |
Oscillation freq. (max.): | 840 MHz |
Tuning voltage (min.): | 0.5 V |
Tuning voltage (max.): | 7 V |
Supply voltage: | 5 V |
Supply current: | 17 mA |
Output level (typ.): | 1.6 dBm |
Sensitivity : | 17.5 MHz/V |
Type: | PCB |
Mounting: | SMD |
Connectors : | pin |
Order code: | E888 |
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850 - 1020 MHz VCO oscillator Maruwa MVE888-30 |
Conditions: | N- (The product is brand new but it comes from an old production) |
Oscillation freq. (min.): | 850 MHz |
Oscillation freq. (max.): | 1020 MHz |
Tuning voltage (min.): | 0 V |
Tuning voltage (max.): | 6 V |
Supply voltage: | 3.3 V |
Supply current: | 13 mA |
Output level (typ.): | 7 dBm |
Sensitivity : | 30 MHz/V |
Type: | PCB |
Mounting: | SMD |
Connectors : | pin |
Order code: | E996D |
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1075 - 1390 MHz VCO oscillator Alps UCVE3-160A |
Conditions: | N- (The product is brand new but it comes from an old production) |
Oscillation freq. (min.): | 1075 MHz |
Oscillation freq. (max.): | 1390 MHz |
Tuning voltage (min.): | 0 V |
Tuning voltage (max.): | 6 V |
Supply voltage: | 6 V |
Supply current: | 26 mA |
Output level (typ.): | 1.8 dBm |
Sensitivity : | 47.5 MHz/V |
Type: | PCB |
Mounting: | SMD |
Connectors : | pin |
Order code: | EXB11A |
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698 - 800 MHz VCO oscillator Alps EXB11A |
Conditions: | N- (The product is brand new but it comes from an old production) |
Oscillation freq. (min.): | 698 MHz |
Oscillation freq. (max.): | 800 MHz |
Tuning voltage (min.): | 0 V |
Tuning voltage (max.): | 12 V |
Supply voltage: | 8 V |
Supply current: | 15 mA |
Output level (typ.): | 3.2 dBm |
Type: | PCB |
Mounting: | SMD |
Connectors : | pin |
Order code: | EXB15A |
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1010 - 1110 MHz VCO oscillator Alps EXB15A |
Conditions: | N- (The product is brand new but it comes from an old production) |
Oscillation freq. (min.): | 1010 MHz |
Oscillation freq. (max.): | 1110 MHz |
Tuning voltage (min.): | 0 V |
Tuning voltage (max.): | 12 V |
Supply voltage: | 9 V |
Supply current: | 14 mA |
Output level (typ.): | 3 dBm |
Sensitivity : | 12.5 MHz/V |
Type: | PCB |
Mounting: | SMD |
Connectors : | pin |
Order code: | EXB35A |
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1402 - 1570 MHz VCO oscillator Alps EXB35A |
Conditions: | N- (The product is brand new but it comes from an old production) |
Oscillation freq. (min.): | 1402 MHz |
Oscillation freq. (max.): | 1570 MHz |
Tuning voltage (min.): | 0 V |
Tuning voltage (max.): | 10 V |
Supply voltage: | 9 V |
Supply current: | 29 mA |
Output level (typ.): | 0 dBm |
Sensitivity : | 20 MHz/V |
Type: | PCB |
Mounting: | SMD |
Connectors : | pin |
Order code: | G1323A |
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Dual band VCO oscillator, 1225 - 1440 MHz and 1400 - 1630 MHz KYOCERA YK501MSG1323M1483A |
Conditions: | N (The product is brand new) |
Oscillation freq. (min.): | 1225 MHz |
Oscillation freq. (max.): | 1440 MHz |
Tuning voltage (min.): | 0 V |
Tuning voltage (max.): | 5 V |
Supply voltage: | 3 V |
Supply current: | 12 mA |
Output level (typ.): | 0 dBm |
Sensitivity : | 80 MHz/V |
Type: | PCB |
Mounting: | SMD |
Connectors : | pin |
Order code: | IK004 |
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SMD VCO bandwidth from 990 to 1200 MHz FDK IK004 |
Conditions: | N- (The product is brand new but it comes from an old production) |
Oscillation freq. (min.): | 990 MHz |
Oscillation freq. (max.): | 1200 MHz |
Tuning voltage (min.): | 0.2 V |
Tuning voltage (max.): | 15 V |
Supply voltage: | 8 V |
Supply current: | 16 mA |
Output level (typ.): | 3 dBm |
Sensitivity : | 15 MHz/V |
Type: | PCB |
Mounting: | SMD |
Connectors : | pin |
Order code: | LVCO-3304T |
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1400 - 1550 MHz VCO oscillator Vari-L LVCO-3304T |
Conditions: | N- (The product is brand new but it comes from an old production) |
Oscillation freq. (min.): | 1400 MHz |
Oscillation freq. (max.): | 1550 MHz |
Tuning voltage (min.): | 0 V |
Tuning voltage (max.): | 9 V |
Supply voltage: | 6 V |
Supply current: | 35 mA |
Output level (typ.): | 3 dBm |
Sensitivity : | 16 MHz/V |
Type: | PCB |
Mounting: | SMD |
Connectors : | pin |
Order code: | MQC007-835 |
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810 - 860 MHz VCO oscillator muRata MQC007-835 |
Conditions: | N- (The product is brand new but it comes from an old production) |
Oscillation freq. (min.): | 810 MHz |
Oscillation freq. (max.): | 860 MHz |
Tuning voltage (min.): | 0.5 V |
Tuning voltage (max.): | 10 V |
Supply voltage: | 10 V |
Supply current: | 11.5 mA |
Output level (typ.): | 4 dBm |
Sensitivity : | 15 MHz/V |
Type: | PCB |
Mounting: | thru-hole |
Connectors : | pin |
Order code: | MQC403-432 |
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418 - 525 MHz VCO oscillator muRata MQC403-432 |
Conditions: | N- (The product is brand new but it comes from an old production) |
Oscillation freq. (min.): | 418 MHz |
Oscillation freq. (max.): | 525 MHz |
Tuning voltage (min.): | 0 V |
Tuning voltage (max.): | 12 V |
Supply voltage: | 8 V |
Supply current: | 30 mA |
Output level (typ.): | 7 dBm |
Sensitivity : | 10 MHz/V |
Type: | PCB |
Mounting: | thru-hole |
Connectors : | pin |
Order code: | MQC403-481 |
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470 - 580 MHz VCO oscillator muRata MQC403-481 |
Conditions: | N- (The product is brand new but it comes from an old production) |
Oscillation freq. (min.): | 470 MHz |
Oscillation freq. (max.): | 580 MHz |
Tuning voltage (min.): | 0.5 V |
Tuning voltage (max.): | 15 V |
Supply voltage: | 8 V |
Supply current: | 14 mA |
Output level (typ.): | 7.5 dBm |
Sensitivity : | 7 MHz/V |
Type: | PCB |
Mounting: | thru-hole |
Connectors : | pin |
Order code: | MQC404-446 |
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438 - 530 MHz VCO oscillator muRata MQC404-446 |
Conditions: | N- (The product is brand new but it comes from an old production) |
Oscillation freq. (min.): | 438 MHz |
Oscillation freq. (max.): | 530 MHz |
Tuning voltage (min.): | 0.5 V |
Tuning voltage (max.): | 15 V |
Supply voltage: | 8 V |
Supply current: | 14 mA |
Output level (typ.): | 9 dBm |
Sensitivity : | 6 MHz/V |
Type: | PCB |
Mounting: | thru-hole |
Connectors : | pin |
Order code: | MQC505-836 |
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824 - 849 MHz VCO oscillator muRata MQC505-836 |
Conditions: | N- (The product is brand new but it comes from an old production) |
Oscillation freq. (min.): | 824 MHz |
Oscillation freq. (max.): | 849 MHz |
Tuning voltage (min.): | 1 V |
Tuning voltage (max.): | 4 V |
Supply voltage: | 5 V |
Supply current: | 8 mA |
Output level (typ.): | 0 dBm |
Sensitivity : | 11 MHz/V |
Type: | PCB |
Mounting: | thru-hole |
Connectors : | pin |
Order code: | MQC505-888 |
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872 - 905 MHz VCO oscillator muRata MQC505-888 |
Conditions: | N- (The product is brand new but it comes from an old production) |
Oscillation freq. (min.): | 872 MHz |
Oscillation freq. (max.): | 905 MHz |
Tuning voltage (min.): | 1 V |
Tuning voltage (max.): | 4 V |
Supply voltage: | 5 V |
Supply current: | 8 mA |
Output level (typ.): | 0 dBm |
Sensitivity : | 13 MHz/V |
Type: | PCB |
Mounting: | thru-hole |
Connectors : | pin |
Order code: | MQC505-978 |
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962 - 995 MHz VCO oscillator muRata MQC505-978 |
Conditions: | N- (The product is brand new but it comes from an old production) |
Oscillation freq. (min.): | 962 MHz |
Oscillation freq. (max.): | 995 MHz |
Tuning voltage (min.): | 1 V |
Tuning voltage (max.): | 4 V |
Supply voltage: | 5 V |
Supply current: | 8 mA |
Output level (typ.): | 0 dBm |
Sensitivity : | 13 MHz/V |
Type: | PCB |
Mounting: | thru-hole |
Connectors : | pin |
Order code: | MQC508-836 |
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824 - 846 MHz VCO oscillator muRata MQC508-836 |
Conditions: | N- (The product is brand new but it comes from an old production) |
Oscillation freq. (min.): | 824 MHz |
Oscillation freq. (max.): | 849 MHz |
Tuning voltage (min.): | 1 V |
Tuning voltage (max.): | 4 V |
Supply voltage: | 7.2 V |
Supply current: | 12 mA |
Output level (typ.): | 2 dBm |
Sensitivity : | 11 MHz/V |
Type: | PCB |
Mounting: | thru-hole |
Connectors : | pin |
Order code: | MQC508-992 |
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980 - 1005 MHz VCO oscillator muRata MQC508-992 |
Conditions: | N- (The product is brand new but it comes from an old production) |
Oscillation freq. (min.): | 980 MHz |
Oscillation freq. (max.): | 1005 MHz |
Tuning voltage (min.): | 1 V |
Tuning voltage (max.): | 4 V |
Supply voltage: | 7.2 V |
Supply current: | 12 mA |
Output level (typ.): | 2 dBm |
Sensitivity : | 11 MHz/V |
Type: | PCB |
Mounting: | thru-hole |
Connectors : | pin |
Order code: | MQE042-1016 |
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1000 - 1033 MHz VCO oscillator muRata MQE042-1016 |
Conditions: | N- (The product is brand new but it comes from an old production) |
Oscillation freq. (min.): | 1000 MHz |
Oscillation freq. (max.): | 1033 MHz |
Tuning voltage (min.): | 0.5 V |
Tuning voltage (max.): | 2.7 V |
Supply voltage: | 3.3 V |
Supply current: | 7 mA |
Sensitivity : | 22.5 MHz/V |
Type: | PCB |
Mounting: | SMD |
Connectors : | pin |
Order code: | MQE042-836 |
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810 - 920 MHz VCO oscillator muRata MQE042-836 |
Conditions: | N- (The product is brand new but it comes from an old production) |
Oscillation freq. (min.): | 810 MHz |
Oscillation freq. (max.): | 920 MHz |
Tuning voltage (min.): | 0 V |
Tuning voltage (max.): | 8 V |
Supply voltage: | 5 V |
Supply current: | 10 mA |
Output level (typ.): | 3 dBm |
Sensitivity : | 11.5 MHz/V |
Type: | PCB |
Mounting: | SMD |
Connectors : | pin |
Order code: | MQE9PF-1747 |
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1670 - 1980 MHz VCO oscillator muRata MQE9PF-1747-T7 |
Conditions: | N- (The product is brand new but it comes from an old production) |
Oscillation freq. (min.): | 1670 MHz |
Oscillation freq. (max.): | 1980 MHz |
Tuning voltage (min.): | 0 V |
Tuning voltage (max.): | 5 V |
Supply voltage: | 3 V |
Supply current: | 32 mA |
Output level (typ.): | 8 dBm |
Sensitivity : | 80 MHz/V |
Type: | PCB |
Mounting: | SMD |
Connectors : | pin |
Order code: | N1025 |
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995 - 1140 MHz VCO oscillator Maruwa MVN1025-30 |
Conditions: | N- (The product is brand new but it comes from an old production) |
Oscillation freq. (min.): | 995 MHz |
Oscillation freq. (max.): | 1140 MHz |
Tuning voltage (min.): | 0 V |
Tuning voltage (max.): | 8 V |
Supply voltage: | 3.5 V |
Supply current: | 8 mA |
Output level (typ.): | 0 dBm |
Sensitivity : | 18.5 MHz/V |
Type: | PCB |
Mounting: | SMD |
Connectors : | pin |
Order code: | POS-1025 |
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685 - 1025 MHz VCO oscillator Mini-Circuits POS-1025 |
Conditions: | N- (The product is brand new but it comes from an old production) |
Oscillation freq. (min.): | 685 MHz |
Oscillation freq. (max.): | 1025 MHz |
Tuning voltage (min.): | 1 V |
Tuning voltage (max.): | 16 V |
Supply voltage: | 12 V |
Supply current: | 22 mA |
Output level (typ.): | 9 dBm |
Sensitivity : | 36 MHz/V |
Type: | PCB |
Mounting: | thru-hole |
Connectors : | pin |
Order code: | POS-1060 |
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750 - 1060 MHz VCO oscillator Mini-Circuits POS-1060 |
Conditions: | N- (The product is brand new but it comes from an old production) |
Oscillation freq. (min.): | 750 MHz |
Oscillation freq. (max.): | 1060 MHz |
Tuning voltage (min.): | 1 V |
Tuning voltage (max.): | 20 V |
Supply voltage: | 8 V |
Supply current: | 30 mA |
Output level (typ.): | 12 dBm |
Sensitivity : | 32 MHz/V |
Type: | PCB |
Mounting: | thru-hole |
Connectors : | pin |
Order code: | R0492 |
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478 - 530 MHz VCO oscillator KYOCERA VK-120R0492-A1 |
Conditions: | N- (The product is brand new but it comes from an old production) |
Oscillation freq. (min.): | 478 MHz |
Oscillation freq. (max.): | 530 MHz |
Tuning voltage (min.): | 0 V |
Tuning voltage (max.): | 6 V |
Supply voltage: | 4 V |
Supply current: | 9 mA |
Output level (typ.): | 1.5 dBm |
Type: | PCB |
Mounting: | SMD |
Connectors : | pin |