CN110277979A - A kind of high-performance voltage controlled oscillator - Google Patents
A kind of high-performance voltage controlled oscillator Download PDFInfo
- Publication number
- CN110277979A CN110277979A CN201810211970.4A CN201810211970A CN110277979A CN 110277979 A CN110277979 A CN 110277979A CN 201810211970 A CN201810211970 A CN 201810211970A CN 110277979 A CN110277979 A CN 110277979A
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- Prior art keywords
- pmos tube
- controlled oscillator
- voltage controlled
- amplitude control
- current source
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K3/00—Circuits for generating electric pulses; Monostable, bistable or multistable circuits
- H03K3/01—Details
- H03K3/012—Modifications of generator to improve response time or to decrease power consumption
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K3/00—Circuits for generating electric pulses; Monostable, bistable or multistable circuits
- H03K3/01—Details
- H03K3/013—Modifications of generator to prevent operation by noise or interference
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- Inductance-Capacitance Distribution Constants And Capacitance-Resistance Oscillators (AREA)
Abstract
The invention discloses a kind of high-performance voltage controlled oscillators, belong to semiconductor integrated circuit technology field, the voltage controlled oscillator includes the automatic amplitude control circuit (1) being connected in parallel, first compensation circuit (2), Inductive component (3), capacitance component (4) and the second compensation circuit (5), wherein, automatic amplitude control circuit (1) includes digital automatic amplitude control circuit (11) and simulation automatic amplitude control circuit (12), pass through the combination of number and simulation automatic amplitude control circuit, the voltage controlled oscillator work can be made in the critical point in current limited area and voltage restricted area；Inductive component (3) uses 8 type inductance of metal layer Parallel Design；Capacitance component (4) includes switched capacitor array unit (41) and transfiguration pipe unit (42), and the voltage controlled oscillator is made to realize the function in broadband.While the voltage controlled oscillator realizes broadband, low phase noise, the performance of low-power consumption can also be realized.
Description
Technical field
The present invention relates to semiconductor integrated circuit technology field more particularly to a kind of high-performance voltage controlled oscillators.
Background technique
With the development of wireless communication technique and IC industry, the transponder chip of compatible multi-protocols becomes current nothing
The research hotspot of the line communications field.Key modules of the frequency synthesizer as radio-frequency front-end, main function are in transceiver
The local carrier signal of frequency changer circuit offer programmable frequency.In order to improve spectrum efficiency, modern wireless communication systems are mostly sharp
With frequency multiplexing technique, the total bandwidth for being used for transmission the channel of signal is divided into several sub-bands (or subchannel), often
One sub-channels transmission of one line signal.Transceiver is carried out when being communicated according to channel occupancy situation, channel quality etc.
Real-time Channel switching；Specifically, realizing the switching of channel by the output frequency for changing frequency synthesizer.
The integrated frequency synthesizer overwhelming majority of mainstream is all phase-locked ring type frequency synthesizer at present, and phase-locked loop systems are answered
With very extensively, from global positioning system to clock recovery circuitry, then wireless receiver circuit is arrived etc.；Different application necks
Domain, the requirement to its performance is different, it is important that the quality of its performance directly influences the quality of communication system.
Therefore, the PLL frequency synthesizer system of high speed, low phase noise, low power jitter, low-power consumption and low chip area etc.
It is increasingly becoming the research emphasis of engineers.
As the requirement to phase-locked ring type frequency synthesizer is increasingly intended to broadband, low phase noise, low spurious, as
Key modules in phase-locked ring type frequency synthesizer --- voltage controlled oscillator (VCO, Voltage Controlled
It Oscillator), is a kind of pulse conversion circuit by level translation for corresponding frequencies, design is also required to meet output broadband
Requirement wide, phase noise is low and low in energy consumption.
In the prior art, there are two types of typical methods to realize VCO broadband output:
Mode one: broadband VCO is realized using switch active device technology.This design uses two groups of negative resistances in low frequency
Meet the harsh starting condition for oscillation of low frequency end to pipe；In high band, the parasitism electricity that one group of negative resistance reduces negative resistance pair to pipe is disconnected
Hold, to widen reference frequency output.The defect of this technology is born due to needing one group of switch control to be switched in or out one group
Resistance is to pipe, and this group switch is directly accessed in VCO core circuit, and such design has deterioration to the Q value of entire resonant cavity,
And then the phase noise performance of VCO is influenced, especially at high band.
Mode two: broadband VCO is realized using transformer or controllable impedance.Resonant cavity based on transformer can produce two
A discrete rate-adaptive pacemaker section, to realize that wide frequency ranges export.Switched inductors are also to access VCO resonant tank by changing
In inductance value combine different reference frequency outputs, to realize the broadband performance of VCO.The defect of this technology is transformation
Device area is big, and the low feature of Q value can deteriorate the phase noise performance of VCO, also can using switching device required for switched inductors
Have an impact to the phase noise of VCO.Although therefore this method can very effectively realize broadband performance, the optimization of phase noise
It is restricted.
As it can be seen that VCO design is difficult meet the needs of broadband, low phase noise simultaneously in the prior art.
Summary of the invention
The present invention present in existing widely used VCO for the problem that being difficult to meet broadband simultaneously, low phase noise,
A kind of high performance voltage controlled oscillator is proposed, while which realizes broadband, low phase noise, moreover it is possible to realize
The performance of low-power consumption.
The present invention provides a kind of high-performance voltage controlled oscillator, including be connected in parallel automatic amplitude control circuit, first
Compensate circuit, Inductive component, capacitance component and the second compensation circuit；
The automatic amplitude control circuit includes digital automatic amplitude control circuit and simulation automatic amplitude control circuit, is led to
Cross the combination of number and simulation automatic amplitude control circuit so that voltage controlled oscillator work current limited area and voltage by
Limit the critical point in area；
The Inductive component includes the 8 type inductance using metal layer Parallel Design；
The capacitance component includes switched capacitor array unit and transfiguration pipe unit.
Preferably, the digital automatic amplitude control circuit includes the switched current source branch of a plurality of parallel connection, every switch
Current source branch is both provided with a switch and a current source；The switched current source branch is opened by digital control position
Disconnected control, to adjust the current value of current source.
Preferably, one end of the digital automatic amplitude control circuit connects first voltage source, and the other end is connected to the 5th
The source electrode of the source electrode of PMOS tube and the 6th PMOS tube.
Preferably, the simulation automatic amplitude control circuit includes the peak detection circuit and current source pair being connected in series
Pipe；
Wherein, the peak detection circuit is used to detect the crest voltage of the voltage controlled oscillator, and it is anti-to will test result
The current source is fed to pipe to adjust the current source to the output electric current of pipe.
Preferably, the peak detection circuit includes the first PMOS tube and the second PMOS tube；
The grid of first PMOS tube is connected with second PMOS tube drain electrode, the drain electrode of first PMOS tube and institute
State the second PMOS tube grid, the source electrode of the 5th PMOS tube is connected, the source electrode of first PMOS tube and the 2nd PMOS
Pipe source electrode is connected, and the drain electrode of second PMOS tube is connected with the source electrode of the 6th PMOS tube.
Preferably, the current source includes the first electric current source capsule and the second electric current source capsule being connected in parallel to pipe；
The first electric current source capsule includes the third PMOS tube and the second voltage source being connected in series；
The second electric current source capsule includes the 4th PMOS tube being connected in series and tertiary voltage source；
The grid of the third PMOS tube is connected with the grid of the 4th PMOS tube, the drain electrode of the third PMOS tube with
The drain electrode of 4th PMOS tube is connected, and the source electrode of the third PMOS tube connects the second voltage source, the 4th PMOS
The source electrode of pipe connects the tertiary voltage source.
Preferably, the switched capacitor array unit includes the switching capacity branch of a plurality of parallel connection, every switching capacity branch
Road is both provided with a switch capacitor equal with two capacitances；The switching capacity branch is cut-off by digital control position
Control realizes the coarse adjustment to the output frequency of the voltage controlled oscillator to adjust the capacitance of the switching capacity branch output
And the division of output bandwidth.
Preferably, the transfiguration pipe unit includes the first variable capacitance, the second variable capacitance；
First variable capacitance and second variable capacitance dock back-to-back, and it is external that butt end is provided with an access
The port of resonance potential signal.
Preferably, the digital circuitry number of automatic amplitude control circuit and the circuitry number of the switched capacitor array unit
It is equal；
The number switched current source branch of automatic amplitude control circuit and the switch of the switched capacitor array unit
Capacitive branch shares equal number of switch control position.
Preferably, the first compensation circuit and second compensation circuit constitute a complementary type compensation circuit, mend
Repay the loss of the LC resonance chamber of the voltage controlled oscillator；
First compensation circuit includes a pair of of PMOS tube；
Second compensation circuit includes a pair of of NMOS tube.
One or more technical solution provided in the present invention, has at least the following technical effects or advantages:
Present invention is generally directed to present in existing widely used VCO between broadband and low phase noise and low-power consumption
Strong trade-off problem uses auto amplitude control while using switched capacitor array and varactor to realize Broadband emission
Technology makes circuit be worked at the critical point of current limited area and voltage restricted area in Whole frequency band, to realize low in Whole frequency band
Phase noise performance, and save power consumption in high band.This circuit has taken into account low phase while realizing broadband performance and has made an uproar
Sound and low-power consumption.
Secondly, circuit reduces Solution of Electromagnetic Field Penetration Problems using 8 type inductance, what this improvement was increasingly minimized in technology
Today has great importance.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
The embodiment of invention for those of ordinary skill in the art without creative efforts, can also basis
The attached drawing of offer obtains other attached drawings.
Fig. 1 is a kind of structural schematic diagram of high-performance voltage controlled oscillator provided in an embodiment of the present invention；
Fig. 2 is the circuit diagram of number automatic amplitude control circuit shown in Fig. 1；
Fig. 3 is the circuit diagram that automatic amplitude control circuit is simulated shown in Fig. 1；
Fig. 4 is Inductive component shown in Fig. 1, capacitance component and the circuit diagram for compensating circuit.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiment is only a part of the embodiments of the present invention, rather than whole embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art without making creative work it is obtained it is all its
His embodiment, shall fall within the protection scope of the present invention.
A kind of high-performance voltage controlled oscillator provided in an embodiment of the present invention, as shown in Figure 1, the voltage controlled oscillator includes: certainly
Dynamic amplitude control circuit 1, first compensates circuit 2, Inductive component 3, capacitance component 4 and the second compensation circuit 5.
Automatic amplitude control circuit 1 includes digital automatic amplitude control circuit 11 and simulation automatic amplitude control circuit 12,
By the combination of number and simulation automatic amplitude control circuit, so that voltage controlled oscillator work is limited in current limited area and voltage
The critical point in area；
Inductive component 3 includes the 8 type inductance using metal layer Parallel Design；
Capacitance component 4 includes switched capacitor array unit 41 and transfiguration pipe unit 42.
In a particular embodiment, as shown in Fig. 2, digital automatic amplitude control circuit 11 includes that (n is just whole greater than 1 to n
Number) the switched current source branch that is connected in parallel of item, every switched current source branch road have a switch Ki (i=1,2,3,
4 ... n) connect with a current source Isi (n of i=1,2,3,4 ...), current source and switch.For example, first switching current
Source branch includes the switch K1 of current source Is1 and series connection with it, other switched current source branch structures and first switching current
The structure of source branch is same or similar, no longer repeats one by one here.One the first electricity of termination of digital automatic amplitude control circuit 11
Potential source VDD1, the other end is connected to source S _ PM6 of the source S _ PM5 and the 6th PMOS tube PM6 of the 5th PMOS tube PM5.
Digital automatic amplitude control circuit 11 passes through the opening and closing of external control signal control switch current source array,
So that the electric current of current source changes with the variation of frequency, can work in this way to avoid voltage controlled oscillator in voltage restricted area,
The effectively power consumption and phase noise of control voltage controlled oscillator.
If being not provided with switched current source array, the electric current of current source will not change with the variation of frequency.
In entire frequency range, amplitude changes very greatly, then circuit may work in voltage restricted area.The phase of voltage restricted area is made an uproar
Acoustic performance is deteriorated as the amplitude of oscillation increases.Meanwhile voltage restricted area can also consume some unnecessary power consumptions, increase whole
The power consumption of circuit.
In a particular embodiment, as shown in figure 3, simulation automatic amplitude control circuit 12 includes the peak detection being connected in series
Circuit 121 and current source are to pipe 122.Peak detection circuit 121 includes the first PMOS tube PM1 and the second PMOS tube PM2；First
The grid of PMOS tube PM1 is connected with the second PMOS tube PM2 drain electrode, the drain electrode of the first PMOS tube PM1 and the second PMOS tube PM2 grid
Pole, source S _ PM5 of the 5th PMOS tube PM5 are connected, and the source electrode of the first PMOS tube PM1 is connected with the second PMOS tube PM2 source electrode, together
When also pipe 122 is connected to electric current, the drain electrode of the second PMOS tube PM2 is connected with source S _ PM6 of the 6th PMOS tube PM6.Electric current
Source includes the first electric current source capsule 1221 and the second electric current source capsule 1222 being connected in parallel to pipe 122.First electric current source capsule 1221 packet
Include the third PMOS tube PM3 and the second voltage source V of series connectionDD2；The 4th PMOS tube PM4 that second electric current source capsule 1222 includes
With tertiary voltage source VDD3；The grid of third PMOS tube PM3 is connected with the grid of the 4th PMOS tube PM4, third PMOS tube PM3's
Drain electrode is connected with the drain electrode of the 4th PMOS tube PM4, and connect with peak detection circuit 121, the source electrode connection of third PMOS tube PM3
The second voltage source VDD2, the source electrode connection tertiary voltage source V of the 4th PMOS tube PM4DD3。
When voltage controlled oscillator output voltage swing is excessive, the grid voltage of third PMOS tube PM3 and the 4th PMOS tube PM4 increase
Greatly, the electric current for flowing through the first PMOS tube PM1 and the second PMOS tube PM2 reduces and then the amplitude of oscillation of voltage controlled oscillator reduces, and prevents electricity
Road works in voltage restricted area.
In a particular embodiment, as shown in figure 4, Inductive component 3 uses 8 type inductance of metal layer Parallel Design.It is first
Using 8 type inductor designs, for reducing Solution of Electromagnetic Field Penetration Problems.Meanwhile inductance coil uses metal layer five and metal layer six simultaneously
Connection design, for improving the Q of inductanceLValue.This is because all devices are all its obtained by power grid in integrated circuit
Required supply voltage.Due to the presence of continuous resistance, electric current, which flows through power grid, can bring voltage drop.By filling metal
Pressure drop can be optimized.Usual adding procedure is successively to add (1,2,3,4 ...) from low to high, is added again after exactly completing first layer
Add the second layer until top.Analysis and utilization fill metal optimization pressure drop effect, to different metal layer addition after pressure drop into
Comparison of having gone uses six Parallel Design of metal layer five and metal layer in a specific embodiment of the present invention, improves inductance Q value
While, the best performance of this voltage controlled oscillator can be made.This is because the phase noise performance L of the VCO and Q of inductanceLValue
Relationship is as follows:
Wherein, F is additional noise coefficient, and k is Boltzmann constant, and T is the absolute temperature in Kelvin, and Ps is average function
Rate loss, QL is the quality factor of inductance, ω0It is output frequency offset, Δ ω is frequency offset, Δ ω1/f3For 1/f3
And 1/f2The corner frequency in region.
Available, the Q of inductance by formula (1)LValue is higher, and phase noise is lower.Therefore, in the introduction of the present embodiment
Under, those skilled in the art can according to actual needs, change the L value, Q value and area of this shape inductance.
In a particular embodiment, as shown in figure 4, capacitance component 4 includes switched capacitor array unit 41 and transfiguration pipe unit
42。
Switched capacitor array unit 41 includes the capacitive branch of n (n is the positive integer greater than 1) item parallel connection, every switch electricity
Hold branch be both provided with a switch Ki (the equal capacitor Ci of (n of i=1,2,3,4 ...) and two capacitances ((i=1,2,3,
4……n).For example, first switching capacity branch road is provided with switch K1 and two capacitances equal capacitor C1, it is other
Switched current source branch structure and the structure of first switched current source branch are same or similar, no longer repeat one by one here.It is more
The switching capacity branch of item parallel connection carries out cut-offfing control by digital control position, to adjust the capacitance of switching capacity, realization pair
The coarse adjustment of the output frequency of voltage controlled oscillator, and by the broadband that voltage controlled oscillator need to export be divided into multiple narrowbands carry out it is defeated
Out.
The circuitry number of switched capacitor array unit 41 is equal with the digital circuitry number of automatic amplitude control circuit 11, and switchs
The switched current source common switch control bit of the switching capacity of capacitor array unit 41 and digital automatic amplitude control circuit 11, this
Sample, when frequency increases, electric current reduces, and the amplitude of oscillation reduces, and avoids circuit work in voltage restricted area, and can save power consumption.
When frequency is minimum, electric current is maximum, keeps phase noise optimal while guaranteeing starting of oscillation.
Transfiguration pipe unit 42 include the first variable capacitance Var1 and the second variable capacitance Var2, the first variable capacitance Var1 and
Second variable capacitance Var2 is docked back-to-back, and butt end is provided with the port of an access external resonant voltage signal Vctr
Port_Vctr.Varactor in transfiguration pipe unit 42 is AMOS (Accumulation-Mode MOS Varator, accumulation type gold
Belong to oxide semiconductor) varactor, in bias voltage adjustment, by adjusting the capacitance of AMOS varactor, to voltage controlled oscillation
The capacitance of device is controlled, and then realizes the fine tuning to the output frequency of voltage controlled oscillator.Switched capacitor array is used simultaneously
41 and transfiguration pipe unit 42 Broadband emission of voltage controlled oscillator may be implemented.
In a particular embodiment, as shown in figure 4, the first compensation circuit 2 and the second compensation circuit 5 constitute a complementary type
Circuit is compensated, the loss of the LC resonance chamber of voltage controlled oscillator in the compensation present invention；Wherein, the first compensation circuit 2 includes a pair
PMOS tube PM5, PM6；Second compensation circuit 5 includes a pair of of NMOS tube NM1, NM2.
Present invention is generally directed to present in existing widely used VCO between broadband and low phase noise and low-power consumption
Strong trade-off problem uses auto amplitude control while using switched capacitor array and varactor to realize Broadband emission
Technology makes circuit be worked at the critical point of current limited area and voltage restricted area in Whole frequency band, to realize low in Whole frequency band
Phase noise performance, and save power consumption in high band.It can be proved that circuit taken into account while realizing broadband performance it is low
Phase noise and low-power consumption.
Secondly, circuit reduces Solution of Electromagnetic Field Penetration Problems using 8 type inductance, what this improvement was increasingly minimized in technology
Today has great importance.
Although preferred embodiments of the present invention have been described, it is created once a person skilled in the art knows basic
Property concept, then additional changes and modifications can be made to these embodiments.So it includes excellent that the following claims are intended to be interpreted as
It selects embodiment and falls into all change and modification of the scope of the invention.
Obviously, various changes and modifications can be made to the invention without departing from essence of the invention by those skilled in the art
Mind and range.In this way, if these modifications and changes of the present invention belongs to the range of the claims in the present invention and its equivalent technologies
Within, then the present invention is also intended to include these modifications and variations.
Claims (10)
1. a kind of high-performance voltage controlled oscillator, which is characterized in that the voltage controlled oscillator includes the automatic amplitude control being connected in parallel
Circuit (1), the first compensation circuit (2), Inductive component (3), capacitance component (4) and the second compensation circuit (5) processed；
The automatic amplitude control circuit (1) includes digital automatic amplitude control circuit (11) and simulation automatic amplitude control circuit
(12), by the combination of number and simulation automatic amplitude control circuit, so that voltage controlled oscillator work is in current limited area
With the critical point of voltage restricted area；
The Inductive component (3) includes the 8 type inductance using metal layer Parallel Design；
The capacitance component (4) includes switched capacitor array unit (41) and transfiguration pipe unit (42).
2. high-performance voltage controlled oscillator as described in claim 1, which is characterized in that the number automatic amplitude control circuit
(11) include a plurality of parallel connection switched current source branch, every switched current source branch be both provided with one switch and an electric current
Source；The switched current source branch carries out cut-offfing control by digital control position, to adjust the current value of current source.
3. high-performance voltage controlled oscillator as claimed in claim 2, which is characterized in that the number automatic amplitude control circuit
(11) one end connects first voltage source (VDD1), the other end is connected to the source electrode (S_PM5) and the 6th of the 5th PMOS tube (PM5)
The source electrode (S_PM6) of PMOS tube (PM6).
4. high-performance voltage controlled oscillator as described in claim 1, which is characterized in that the simulation automatic amplitude control circuit
It (12) include the peak detection circuit (121) being connected in series and current source to pipe (122)；
Wherein, the peak detection circuit (121) is used to detect the crest voltage of the voltage controlled oscillator, and it is anti-to will test result
The current source is fed to pipe (122) to adjust the current source to the output electric current of pipe (122).
5. high-performance voltage controlled oscillator as claimed in claim 4, which is characterized in that the peak detection circuit (121) includes
First PMOS tube (PM1) and the second PMOS tube (PM2)；
The grid of first PMOS tube (PM1) is connected with second PMOS tube (PM2) drain electrode, first PMOS tube
(PM1) drain electrode is connected with the source electrode (S_PM5) of the second PMOS tube (PM2) grid, the 5th PMOS tube (PM5), institute
The source electrode for stating the first PMOS tube (PM1) is connected with the second PMOS tube (PM2) source electrode, the leakage of second PMOS tube (PM2)
Pole is connected with the source electrode (S_PM6) of the 6th PMOS tube (PM6).
6. high-performance voltage controlled oscillator as claimed in claim 4, which is characterized in that the current source includes simultaneously to pipe (122)
Join the first electric current source capsule (1221) and the second electric current source capsule (1222) of connection；
The first electric current source capsule (1221) includes the third PMOS tube (PM3) being connected in series and the second voltage source (VDD2)；
The second electric current source capsule (1222) includes the 4th PMOS tube (PM4) being connected in series and tertiary voltage source (VDD3)；
The grid of the third PMOS tube (PM3) is connected with the grid of the 4th PMOS tube (PM4), the third PMOS tube
(PM3) drain electrode is connected with the drain electrode of the 4th PMOS tube (PM4), described in the source electrode connection of the third PMOS tube (PM3)
The second voltage source (VDD2), the source electrode of the 4th PMOS tube (PM4) connects the tertiary voltage source (VDD3)。
7. high-performance voltage controlled oscillator as described in claim 1, which is characterized in that switched capacitor array unit (41) packet
The switching capacity branch of a plurality of parallel connection is included, every switching capacity branch is both provided with a switch electricity equal with two capacitances
Hold；The switching capacity branch carries out cut-offfing control by digital control position, to adjust the electricity of the switching capacity branch output
Capacitance realizes the coarse adjustment to the output frequency of the voltage controlled oscillator and the division of output bandwidth.
8. high-performance voltage controlled oscillator as described in claim 1, which is characterized in that the transfiguration pipe unit (42) includes first
Variable capacitance (Var1), the second variable capacitance (Var2)；
First variable capacitance (Var1) and second variable capacitance (Var2) dock back-to-back, and butt end is provided with one
Access the port (Port_Vctr) of external resonant voltage signal (Vctr).
9. high-performance voltage controlled oscillator as described in claim 1, which is characterized in that the number automatic amplitude control circuit
(11) circuitry number of circuitry number and the switched capacitor array unit (41) is equal；
The switched current source branch and the switched capacitor array unit (41) of the number automatic amplitude control circuit (11)
Switching capacity branch shares equal number of switch control position.
10. high-performance voltage controlled oscillator as described in claim 1, which is characterized in that first compensation is circuit (2) and described
Second compensation circuit (5) constitutes a complementary type compensation circuit, compensates the loss of the LC resonance chamber of the voltage controlled oscillator；
First compensation circuit (2) includes a pair of of PMOS tube (PM5, PM6)；
Second compensation circuit (5) includes a pair of of NMOS tube (NM1, NM2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810211970.4A CN110277979A (en) | 2018-03-15 | 2018-03-15 | A kind of high-performance voltage controlled oscillator |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810211970.4A CN110277979A (en) | 2018-03-15 | 2018-03-15 | A kind of high-performance voltage controlled oscillator |
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| Publication Number | Publication Date |
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| CN110277979A true CN110277979A (en) | 2019-09-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201810211970.4A Withdrawn CN110277979A (en) | 2018-03-15 | 2018-03-15 | A kind of high-performance voltage controlled oscillator |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111224538A (en) * | 2020-04-21 | 2020-06-02 | 浙江航芯源集成电路科技有限公司 | On-chip isolating switch power supply |
| CN112953392A (en) * | 2021-03-15 | 2021-06-11 | 东南大学 | Millimeter wave voltage-controlled oscillator with third harmonic enhancement |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001326574A (en) * | 2000-05-16 | 2001-11-22 | Hitachi Ltd | Phase synchronization circuit and clock generation circuit |
| US20050195063A1 (en) * | 2004-03-03 | 2005-09-08 | Thomas Mattsson | Method of and inductor layout for reduced VCO coupling |
| CN105897263A (en) * | 2016-03-29 | 2016-08-24 | 武汉芯泰科技有限公司 | Broadband voltage controlled oscillator and frequency synthesizer |
| CN105978561A (en) * | 2016-06-16 | 2016-09-28 | 武汉芯泰科技有限公司 | Broadband voltage controlled oscillator |
-
2018
- 2018-03-15 CN CN201810211970.4A patent/CN110277979A/en not_active Withdrawn
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001326574A (en) * | 2000-05-16 | 2001-11-22 | Hitachi Ltd | Phase synchronization circuit and clock generation circuit |
| US20050195063A1 (en) * | 2004-03-03 | 2005-09-08 | Thomas Mattsson | Method of and inductor layout for reduced VCO coupling |
| CN105897263A (en) * | 2016-03-29 | 2016-08-24 | 武汉芯泰科技有限公司 | Broadband voltage controlled oscillator and frequency synthesizer |
| CN105978561A (en) * | 2016-06-16 | 2016-09-28 | 武汉芯泰科技有限公司 | Broadband voltage controlled oscillator |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111224538A (en) * | 2020-04-21 | 2020-06-02 | 浙江航芯源集成电路科技有限公司 | On-chip isolating switch power supply |
| CN111224538B (en) * | 2020-04-21 | 2020-08-18 | 浙江航芯源集成电路科技有限公司 | On-chip isolating switch power supply |
| CN112953392A (en) * | 2021-03-15 | 2021-06-11 | 东南大学 | Millimeter wave voltage-controlled oscillator with third harmonic enhancement |
| CN112953392B (en) * | 2021-03-15 | 2023-08-04 | 东南大学 | Millimeter wave voltage-controlled oscillator with third harmonic enhancement |
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Application publication date: 20190924 |