CN104182554B - The wire structures and wiring method of the power pin of power amplifier - Google Patents
The wire structures and wiring method of the power pin of power amplifier Download PDFInfo
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- CN104182554B CN104182554B CN201310188601.5A CN201310188601A CN104182554B CN 104182554 B CN104182554 B CN 104182554B CN 201310188601 A CN201310188601 A CN 201310188601A CN 104182554 B CN104182554 B CN 104182554B
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- power pin
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Abstract
The present invention relates to a kind of wire structures of the power pin of power amplifier, including at least two stage power amplifier, and every grade of power amplifier includes at least one power pin, further includes：Tributary power cord, quantity is equal with the power pin, and length is greater than or equal to 200 mils, is corresponded with the power pin and the corresponding power pin is electrically connected on the power cord of mainstream；Mainstream power cord is electrically connected with all tributary power cords.The invention further relates to a kind of wiring methods of the power pin of power amplifier.Circuit noise must be propagated along tributary power cord and mainstream power cord in the present invention, since the impedance of power cord is far longer than plane impedance, is thus effectively hindered sonic propagation of making an uproar, reduced noise jamming.
Description
Technical field
The present invention relates to power amplifiers, more particularly to a kind of wire structures of the power pin of power amplifier, also
It is related to a kind of wiring method of the power pin of power amplifier.
Background technology
For multi-layer PCB board Digital Design, with four laminates（Signal/ground/power supply/signal）For, it is integrated when one
When circuit has the power pin of multiple identical networks and each power pin to have decoupling capacitor, typically uses and pave face
Wire laying mode, the pin of all identical networks is linked together.The complexity of wiring can be not only reduced in this way, moreover it is possible to be reduced
The impedance of electric power network.
But for power amplifier（PA）For, if using identical method, it is possible to index be caused to decline.The reason is that
Generally there are 2 to 3 grades of amplifying circuits inside power amplifier, if the connection of power pin is connected using plane, rear stage is put
When big circuit work, noise will travel to previous stage amplifying circuit by power plane so that noise is amplified, and causes power
Amplifier performance declines.
Invention content
Based on this, the power amplifier noise in order to solve the problems, such as conventionally employed plane routing mode is excessive, it is necessary to
When a kind of progress printed circuit board wiring is provided, the wire structures of the power pin of power amplifier.
A kind of wire structures of the power pin of power amplifier, including at least two stage power amplifier, every grade of work(
Rate amplifier includes at least one power pin, further includes：Tributary power cord, quantity is equal with the power pin, and length is big
In or equal to 200 mils, is corresponded with the power pin and the corresponding power pin is electrically connected to mainstream power supply
On line；Mainstream power cord is electrically connected with all tributary power cords.
Each tributary power cord is linear section structure in one of the embodiments,.
It is mutually parallel between each tributary power cord in one of the embodiments,.
The spacing of two adjacent tributary power cords is greater than or equal to 100 mils in one of the embodiments,.
It is in one of the embodiments, vertical connection between the tributary power cord and mainstream power cord.
Further include the decoupling capacitor coordinated with the power pin, the decoupling capacitor number in one of the embodiments,
Amount is equal with the power pin, and is arranged in a one-to-one correspondence by corresponding power pin.
The width of the mainstream power cord is more than the width of the tributary power cord in one of the embodiments,.
It there is a need to the wiring method that a kind of power pin of power amplifier is provided.
A kind of wiring method of the power pin of power amplifier, includes the following steps：The power supply of power amplifier is set
Pin, the power amplifier are at least two-stage；Tributary power cord is set；The tributary number of power lines and the power pin
Equal, length is greater than or equal to 200 mils, is corresponded with the power pin；Mainstream power cord is set；The mainstream power supply
Line is electrically connected with all tributary power cords.
The spacing of two adjacent tributary power cords is greater than or equal to 100 mils in one of the embodiments, described dry
The width for flowing power cord is more than the width of the tributary power cord.
Further include the decoupling of setting and power pin cooperation by the power pin in one of the embodiments,
The step of capacitance, the decoupling capacitor quantity is equal with the power pin and is corresponded with the power pin.
The wire structures and wiring method of the power pin of above-mentioned power amplifier, increase the road between each power pin
Diameter and impedance.Traditional plane wire laying mode, the path of noise are exactly the span between each power pin（The shortest distance）, road
Impedance on diameter is exactly the impedance of power plane.And above-mentioned wiring is used, noise must be along tributary power cord and mainstream power supply
Line is propagated, and since the impedance of power cord is far longer than plane impedance, is thus effectively hindered sonic propagation of making an uproar, is reduced and make an uproar
Acoustic jamming.
Description of the drawings
Fig. 1 is the schematic diagram of the wire structures of the power pin of an embodiment intermediate power amplifier；
Fig. 2 is the flow chart of the wiring method of the power pin of an embodiment intermediate power amplifier；
Fig. 3 is the relation curve of noise and frequency that an integrated circuit is measured using traditional plane wire laying mode；
Fig. 4 is wire structures wiring of the integrated circuit identical with Fig. 3 using the power pin of power amplifier of the present invention
The relation curve of the noise and frequency that measure afterwards.
Specific implementation mode
It is understandable to enable objects, features and advantages of the present invention to become apparent, below in conjunction with the accompanying drawings to the tool of the present invention
Body embodiment is described in detail.
Fig. 1 is the schematic diagram of the wire structures of the power pin of an embodiment intermediate power amplifier, including power pin 10,
Decoupling capacitor 20, tributary power cord 110 and the mainstream power cord 120 coordinated with each power pin 10.
The circuit includes at least two stage power amplifier, includes at least one power pin 10 per stage power amplifier, respectively
Power pin 10 is in consolidated network.20 quantity of decoupling capacitor is equal with power pin 10, and is arranged in a one-to-one correspondence in corresponding
Power pin 10 by, the function for providing decoupling for corresponding power pin 10.
The quantity of tributary power cord 110 is equal with power pin 10, and is corresponded with power pin 10, will be corresponding
Power pin 10 is electrically connected on mainstream power cord 20.In order to obtain noise dampening properties good enough, tributary power cord 110
Must long enough, in the present embodiment to be greater than or equal to 200 mils（mil）.
In the present embodiment, each tributary power cord 110 is linear section structure and is mutually parallel, and constitutes the electricity of finger-type
Source network.The extending direction of tributary power cord 110 and the extending direction of mainstream power cord 120 are mutually perpendicular to.It should be understood that this
It is not vertically to be strictly defined as 90 degree described in specification and claims, can has in actual design operation certain inclined
It moves.In other embodiments, according to specific circuit trace demand, tributary power cord 110 may be the Wiring structure of bending,
It can not also be arranged in parallel between each tributary power cord 110, the angle between tributary power cord 110 and mainstream power cord 120 also may be used
Think other angles.
Mainstream power cord 120 is electrically connected with all tributary power cords 110.Due to the electricity flowed through on mainstream power cord 120
Stream can be regarded as summarizing for the upper overcurrent of all tributary power cords 110, therefore in order to meet the needs of larger current, at this
Its width should be greater than the width of tributary power cord 110 in embodiment.
The wire structures of the power pin of above-mentioned power amplifier are increased each using the electric power network structure of finger-type
Path between power pin 10 and impedance.Traditional plane wire laying mode, the path of noise are exactly between each power pin
Span（The shortest distance）, the impedance on path is exactly the impedance of power plane.And above-mentioned finger-type is used to connect up, noise is necessary
It is propagated along tributary power cord 110 and mainstream power cord 120, since the impedance of power cord is far longer than plane impedance, thus
Sonic propagation of making an uproar effectively is hindered, noise jamming is reduced.The wire structures of the power pin of above-mentioned power amplifier are especially
Circuit suitable for not designing corresponding isolation structure circuit diagram.
The width of tributary power cord 110 should be thin as far as possible under conditions of meeting current needs, wherein a reality
It applies in example as 20mil or so.
The spacing of two adjacent tributary power cords 110 is greater than or equal to 100 mils in one of the embodiments,.
Fig. 3 is the relation curve of noise and frequency that an integrated circuit is measured using traditional plane wire laying mode,
Fig. 4 be same integrated circuit using the noise measured after the wire structures wiring of the power pin of power amplifier of the present invention and
The relation curve of frequency.Wherein noise is more negative, indicates that interference is smaller.It can be seen that noise attentuation obtains faster in Fig. 4（Phase
For Fig. 3）, interference value is in full frequency band（1G-5G）Below plane wire laying mode.
The present invention also provides a kind of wiring method of the power pin of power amplifier, Fig. 2 is that power is put in an embodiment
The flow chart of the wiring method of the power pin of big device, includes the following steps：
The power pin of power amplifier is arranged in S210.
At least two stage power amplifier in circuit includes at least one power pin per stage power amplifier.
S220, the decoupling capacitor of setting and power pin cooperation.
The decoupling capacitor that coordinates with it is set by power pin, and decoupling capacitor quantity is equal with power pin and and power supply
Pin corresponds.
Tributary power cord is arranged in S230.
Tributary number of power lines is equal with power pin and is corresponded with power pin, and it is close that length is greater than or equal to 200
Ear.Tributary power cord is used to corresponding power pin being electrically connected to mainstream power cord.
In order to obtain noise dampening properties good enough, the necessary long enough of tributary power cord 110, in the present embodiment for
More than or equal to 200mil.
In the present embodiment, each tributary power cord is linear section structure and is mutually parallel, and constitutes the power net of finger-type
The spacing of network, adjacent two tributary power cords 110 is greater than or equal to 100 mils.The extending direction of tributary power cord and mainstream
The extending direction of power cord is mutually perpendicular to.
The width of tributary power cord 110 should be thin as far as possible under conditions of meeting current needs, in the present embodiment
For 20mil.
Mainstream power cord is arranged in S240.
Mainstream power cord is electrically connected with all tributary power cords.Since the electric current flowed through on the power cord of mainstream is considered as
It it is summarizing for all tributary power cords upstream overcurrent, therefore in order to meet the needs of larger current, it is wide in the present embodiment
Degree should be greater than the width of tributary power cord.
Several embodiments of the invention above described embodiment only expresses, the description thereof is more specific and detailed, but simultaneously
Cannot the limitation to the scope of the claims of the present invention therefore be interpreted as.It should be pointed out that for those of ordinary skill in the art
For, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to the guarantor of the present invention
Protect range.Therefore, the protection domain of patent of the present invention should be determined by the appended claims.
Claims (10)
1. a kind of wire structures of the power pin of power amplifier, including at least two stage power amplifier, every grade of power
Amplifier includes at least one power pin, which is characterized in that further includes：
Tributary power cord, quantity is equal with the power pin, and length is greater than or equal to 200 mils, with the power pin one
One corresponds to and the corresponding power pin is electrically connected on the power cord of mainstream；
Mainstream power cord is electrically connected with all tributary power cords.
2. the wire structures of the power pin of power amplifier according to claim 1, which is characterized in that each tributary
Power cord is linear section structure.
3. the wire structures of the power pin of power amplifier according to claim 2, which is characterized in that each tributary
It is mutually parallel between power cord.
4. the wire structures of the power pin of power amplifier according to claim 1, which is characterized in that adjacent two
The spacing of tributary power cord is greater than or equal to 100 mils.
5. the wire structures of the power pin of power amplifier according to claim 1, which is characterized in that the Zhi Liu electricity
It is vertical connection between source line and mainstream power cord.
6. the wire structures of the power pin of power amplifier according to claim 1, which is characterized in that further include and institute
State power pin cooperation decoupling capacitor, the decoupling capacitor quantity is equal with the power pin, and be arranged in a one-to-one correspondence in
By corresponding power pin.
7. the wire structures of the power pin of the power amplifier according to any one of claim 1-6, feature exist
In the width of the mainstream power cord is more than the width of the tributary power cord.
8. a kind of wiring method of the power pin of power amplifier, includes the following steps：
The power pin of power amplifier is set, and the power amplifier is at least two-stage；
Tributary power cord is set；The tributary number of power lines is equal with the power pin, and it is close that length is greater than or equal to 200
Ear is corresponded with the power pin；
Mainstream power cord is set；The mainstream power cord is electrically connected with all tributary power cords.
9. the wiring method of the power pin of power amplifier according to claim 8, which is characterized in that adjacent two
The spacing of tributary power cord is greater than or equal to 100 mils, and the width of the mainstream power cord is more than the width of the tributary power cord
Degree.
10. the wiring method of the power pin of power amplifier according to claim 8, which is characterized in that further include
By the power pin the step of decoupling capacitor of setting and power pin cooperation, the decoupling capacitor quantity and the electricity
Source capsule foot is equal and is corresponded with the power pin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310188601.5A CN104182554B (en) | 2013-05-20 | 2013-05-20 | The wire structures and wiring method of the power pin of power amplifier |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310188601.5A CN104182554B (en) | 2013-05-20 | 2013-05-20 | The wire structures and wiring method of the power pin of power amplifier |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104182554A CN104182554A (en) | 2014-12-03 |
| CN104182554B true CN104182554B (en) | 2018-08-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310188601.5A Expired - Fee Related CN104182554B (en) | 2013-05-20 | 2013-05-20 | The wire structures and wiring method of the power pin of power amplifier |
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| CN (1) | CN104182554B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110364506A (en) * | 2019-07-04 | 2019-10-22 | 武汉理工大学 | A kind of bionical integrated circuit with high stability |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109301808A (en) * | 2018-11-29 | 2019-02-01 | 郑州云海信息技术有限公司 | A kind of network interface anti-surge circuit layout method and device |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1469545A (en) * | 2002-06-11 | 2004-01-21 | Nec������ʽ���� | Transmitting line type noise filter |
| CN1531775A (en) * | 2001-07-23 | 2004-09-22 | 新泻精密株式会社 | Multistage amplifier and integrated circuit |
| CN1599236A (en) * | 2003-09-19 | 2005-03-23 | 夏普株式会社 | Integrated circuit and optical pickup device |
| CN1622097A (en) * | 2003-11-26 | 2005-06-01 | 松下电器产业株式会社 | Method for analyzing power supply noise of semiconductor integrated circuit |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006311062A (en) * | 2005-04-27 | 2006-11-09 | Nec Electronics Corp | Output circuit |
-
2013
- 2013-05-20 CN CN201310188601.5A patent/CN104182554B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1531775A (en) * | 2001-07-23 | 2004-09-22 | 新泻精密株式会社 | Multistage amplifier and integrated circuit |
| CN1469545A (en) * | 2002-06-11 | 2004-01-21 | Nec������ʽ���� | Transmitting line type noise filter |
| CN1599236A (en) * | 2003-09-19 | 2005-03-23 | 夏普株式会社 | Integrated circuit and optical pickup device |
| CN1622097A (en) * | 2003-11-26 | 2005-06-01 | 松下电器产业株式会社 | Method for analyzing power supply noise of semiconductor integrated circuit |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110364506A (en) * | 2019-07-04 | 2019-10-22 | 武汉理工大学 | A kind of bionical integrated circuit with high stability |
| CN110364506B (en) * | 2019-07-04 | 2022-01-28 | 武汉理工大学 | Bionic integrated circuit with high stability |
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| Publication number | Publication date |
|---|---|
| CN104182554A (en) | 2014-12-03 |
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