CN105188004B - The connection structure of digital electret microphone and digital electret microphone - Google Patents
The connection structure of digital electret microphone and digital electret microphone Download PDFInfo
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- CN105188004B CN105188004B CN201410284295.XA CN201410284295A CN105188004B CN 105188004 B CN105188004 B CN 105188004B CN 201410284295 A CN201410284295 A CN 201410284295A CN 105188004 B CN105188004 B CN 105188004B
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Abstract
The present invention relates to electronic technology fields, and in particular to a kind of connection structure of number electret microphone and digital electret microphone.The connection structure of digital electret microphone, for mounting digital electret microphone to a printed circuit board, digital electret microphone has circular package structure, and the joint face of circular package structure is equipped at least five pins；Printed circuit board is equipped with round pasting area, and round pasting area is equipped at least four pads, at least five pins and at least four contact pads.The digital electret microphone of circular package structure can be realized adaptive attachment by the present invention, be multiplexed existing production-line technique, reduced the production cost of enterprise.
Description
Technical field
The present invention relates to electronic technology fields, and in particular to the connection structure and number of a kind of number electret microphone are stayed
Electret microphone.
Background technology
Digital electret capacitor microphone is on the basis of traditional electret capacitor microphone, by AD conversion unit
It adds in inside microphone, to export digital electric signal, substantially increases the ability of microphone electromagnetism interference, improve microphone
Quality of output signals, however, two pin configuration differences with traditional electret capacitor microphone, digital electret capacitor
The connection terminal of formula microphone is four pins, respectively：Power input VDD, input end of clock ClK, data output end
Data, ground terminal GND；Two connections of the circular patch encapsulating structure of traditional electret capacitor microphone are drawn in the prior art
Foot uses cyclic structure surface mount process convenient to carry out, and if the digital electret capacitor microphone of four pins is still adopted
With circular package structure, then to realize that automatic surface attachment process can there are obstacles.Thus those skilled in the art have to by
Digital electret capacitor microphone is set as square package structure, in order to automatic surface mount, however this cause it is existing
The waste of circular patch packaging technology line improves the production cost of enterprise.
Invention content
The object of the present invention is to provide a kind of connection structure of digital electret microphone, solution more than technical problems；
The present invention also aims to provide a kind of digital electret microphone, solution more than technical problem；
Following technical scheme may be used to realize in technical problem solved by the invention：
The connection structure of digital electret microphone, for mounting the digital electret microphone to a printed circuit
On plate, wherein, the number electret microphone has circular package structure, and the joint face of the circular package structure is equipped with
At least five pins；The printed circuit board is equipped with round pasting area, and the circle pasting area is equipped at least four welderings
Disk, at least five pins and at least four contact pads.
Preferably, the pin includes the first pin positioned at center location, around the second of first pin setting
Pin；Third pin, the 4th pin set at equal intervals between each other is equipped between first pin and the second pin
And the 5th pin.
Preferably, the pad includes the first pad for being located at the center of the round pasting area, around described
Second pad of the first pad setting, the third pad being set between first pad and second pad and the 4th weldering
Disk, the third pad and the 4th pad are oppositely arranged.
Preferably, first pin and first contact pads, the second pin and second contact pads；
At least one of the third pin, the 4th pin, described 5th pin and the third contact pads,
At least one of the third pin, the 4th pin, described 5th pin and the 4th contact pads.
Preferably, the third pin, the 4th pin, the 5th pin are around the same of first pin
Three sections of first kind arc-shaped connection structures on circular configuration, three sections of first kind arc-shaped connection structures are set at equal intervals.
Preferably, the third pad and the 4th pad are on the same circular configuration of first pad
Two section of second class arc-shaped connection structure.
Preferably, the length of the third pad is more than the third pin, the 4th pin, the 5th pin
The wherein length of any one；The length of 4th pad is drawn more than the third pin, the 4th pin, the described 5th
The wherein length of any one of foot.
The present invention also provides a kind of digital electret microphones, have the connection knot of above-mentioned digital electret microphone
Structure, the third pin are data output end, and the 4th pin is input end of clock, and the 5th pin is controlled switch
End, the 5th pin contacts under the action of a control signal with the third pin or the 4th pin, to realize
Pin is stated correctly to dock with the pad of corresponding function；
The control signal is generated by a decision circuit, signal input or letter of the decision circuit according to the pin
Number output state generates the control signal.
Preferably, the decision circuit is located at the inside of the digital electret microphone, with the third pin, described
4th pin and the 5th pin electrical connection.
Preferably, first pin and first pad are all power input, the second pin and described the
Two pads are all ground terminal or first pin and first pad is all ground terminal, the second pin with it is described
Second pad is all power input.
Advantageous effect：Due to using the technology described above, the present invention can be by the digital electret wheat of circular package structure
Gram wind realizes adaptive attachment, is multiplexed existing production-line technique, reduces the production cost of enterprise.
Description of the drawings
Fig. 1 is the pin distribution schematic diagram of the joint face of the digital electret microphone of the present invention；
Fig. 2 is the pad distribution schematic diagram of the round pasting area of the printed circuit board of the present invention；
Fig. 3 is the built-in system structure diagram of the digital electret microphone of the present invention.
Specific embodiment
Below in conjunction with the attached drawing in the embodiment of the present invention, the technical solution in the embodiment of the present invention is carried out clear, complete
Site preparation describes, it is clear that described embodiment is only part of the embodiment of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art obtained under the premise of creative work is not made it is all its
His embodiment, shall fall within the protection scope of the present invention.
It should be noted that in the absence of conflict, the feature in embodiment and embodiment in the present invention can phase
Mutually combination.
The invention will be further described in the following with reference to the drawings and specific embodiments, but not as limiting to the invention.
With reference to Fig. 1, Fig. 2, the connection structure of digital electret microphone, for by digital electret microphone 1 mount to
On one printed circuit board 2, wherein, digital electret microphone 1 has circular package structure, on the joint face of circular package structure
Equipped at least five pins；Printed circuit board 2 is equipped with round pasting area, and round pasting area is equipped at least four pads,
At least five pins and at least four contact pads.
As a kind of preferred embodiment of the present invention, pin includes the first pin 11 positioned at center location, around the
The second pin 12 of one pin 11 setting；The set at equal intervals between each other is equipped between first pin 11 and second pin 12
Three pins 13, the 4th pin 14 and the 5th pin 15.
As a kind of preferred embodiment of the present invention, pad includes being located at the first of the center of round pasting area
Pad 21, around the second pad 22 of the first pad 21 setting, the third being set between the first pad 21 and the second pad 22
23 and the 4th pad 24 of pad, 23 and the 4th pad 24 of third pad are oppositely arranged.
As a kind of preferred embodiment of the present invention, the first pin 11 contacts with the first pad 21, second pin 12 and
Second pad 22 contacts；
At least one of third pin 13, the 4th pin 14, the 5th pin 15 are contacted with third pad 23, third pin
13rd, at least one of the 4th pin 14, the 5th pin 15 are contacted with the 4th pad 24.
As a kind of preferred embodiment of the present invention, third pin 13, the 4th pin 14, the 5th pin 15 are around the
Three sections of first kind arc-shaped connection structures on the same circular configuration of one pin 11, three sections of first kind arc-shaped connection structures etc.
It is arranged at intervals.A kind of specific embodiment, the length of first kind arc-shaped connection structure are justified for 1/6th of same circular configuration
Zhou Changdu.
The connection structure of other shapes may be used in third pin 13, the 4th pin 14, the 5th pin 15 of the present invention, only
To be suitable for being arranged between the first pin 11 and second pin 12, meet the purpose of the present invention, such as third pin 13, the 4th pin
14th, the 5th pin 15 can be in that isosceles triangle is distributed.
As a kind of preferred embodiment of the present invention, 23 and the 4th pad 24 of third pad is around the first pad 21
Two section of second class arc-shaped connection structure on same circular configuration.The length of second class arc-shaped connection structure is less than same circle
The half circumferential length of shape structure but the length for being more than first kind arc-shaped connection structure.
Likewise, 23 and the 4th pad 24 of third pad of the present invention can also use the pad of other shapes to replace, only
It is adapted for carrying out the purpose of the present invention.
The shapes and sizes of three sections of first kind arc-shaped connection structures are identical, the shape of two section of second class arc-shaped connection structure
Shape is identical with size,
As a kind of preferred embodiment of the present invention, the length of third pad 23 is more than third pin 13, the 4th pin
14th, the wherein length of any one of the 5th pin 15；The length of 4th pad 24 be more than third pin 13, the 4th pin 14,
The wherein length of any one of 5th pin 15.
The first pin 11 and the first pad 21 of the present invention is all power input, and 12 and second pad 22 of second pin is same
The first pin 11 and the first pad 21 for ground terminal or the present invention are all ground terminal, 12 and second pad 22 of second pin
It is all power input.
The present invention also provides a kind of digital electret microphones 1, have the connection knot of above-mentioned digital electret microphone 1
Structure, third pin 13 be data output end, the 4th pin 14 be input end of clock, the 5th pin 15 be controlled switch end, the 5th
Pin 15 contacts under the action of a control signal with 13 or the 4th pin 14 of third pin, to realize pin and corresponding function
Pad correctly docks；
Control signal is generated by a decision circuit 16, and decision circuit 16 is according to the signal input of pin or signal output shape
State generates control signal.
As a kind of preferred embodiment of the present invention, decision circuit 16 is located at the inside of digital electret microphone 1, with
Third pin 13, the 4th pin 14 and the 5th pin 15 are electrically connected.
The decision method of the digital electret microphone of the present invention, includes the following steps：
After system electrification, the clock signal according to external circuit input judges contact situation of the pin with pad, judgement electricity
Road makes decisions in the following several ways：
The first situation, decision circuit judge whether the setting pin in third pin, the 4th pin or the 5th pin has
Signal inputs, to receive the pin of signal as input end of clock,
It, can be using other two pin as data output end if receiving clock signal there are one pin；
If receiving signal there are two pin, with two pins collectively as input end of clock, remaining pin is made
For data output end, outside outputting data signals；
In table above, if third pad exports clock signal,
It 1), can be with the 4th pin and the 5th pin collectively as data when only third pin receives clock signal
Output terminal；
2) when third pin and the 5th pin receive clock signal, using the 4th pin as data output end；
3) when third pin and the 4th pin receive clock signal, using the 5th pin as data output end, by
Be defaulted as controlled switch end in the 5th pin, at this time controlled switch in the case where controlling signal function with internal circuit switch, realize to
Outer outputting data signals.
The second situation, using third pin as data output end, decision circuit judges that third pad or the 4th pad are
No to receive signal, the pad for receiving signal is thought to contact with third pin, and another pad is as input end of clock, to the 4th pin
Or the 5th at least one of pin send out clock signal；
Then, whether the 5th pin of detection receives clock signal, if not provided, can be with third pin and the 5th pin
Collectively as data output end or individually using third pin as data output end；If so, with the 5th pin and the 4th pin
Collectively as input end of clock or using the 5th pin as input end of clock；In table above,
1) when the 4th pad is individually contacted with third pin, the 4th pad receives data-signal, third pad and the 4th
Pin and the contact of the 5th pin, can be with the 4th pin and the 5th pin collectively as input end of clock；
2) when the 4th pad is contacted with third pin and the 5th pin, third pin can be common with the 5th pin at this time
As data output end, with the 4th pin separately as input end of clock；
3) it when the 4th pad is contacted with third pin and the 4th pin, can be total at this time with third pin and the 4th pin
With as data output end, with the 5th pin separately as input end of clock, certainly, herein, controlled switch is believed in control at this time
Number effect is lower switches with internal circuit, realizes reception external timing signal.
Remaining situation is similar, and therefore not to repeat here.
The foregoing is merely preferred embodiments of the present invention, not thereby limit embodiments of the present invention and protection model
It encloses, to those skilled in the art, should can appreciate that all with made by description of the invention and diagramatic content
Equivalent replacement and obviously change obtained scheme, should all include within the scope of the present invention.
Claims (9)
1. the connection structure of digital electret microphone, for mounting the digital electret microphone to a printed circuit board
On, which is characterized in that the number electret microphone has circular package structure, on the joint face of the circular package structure
Equipped at least five pins；The printed circuit board is equipped with round pasting area, and the circle pasting area is equipped at least four
A pad, at least five pins and at least four contact pads；The pin includes first positioned at center location
Pin, around the second pin of first pin setting；Between first pin and the second pin be equipped with mutually it
Between the third pin, the 4th pin and the 5th pin that set at equal intervals；The pad includes being located at the round pasting area
First pad of center around the second pad of first pad setting, is set to first pad and described the
Third pad and the 4th pad between two pads, the third pad and the 4th pad are oppositely arranged；
First pin and first contact pads, the second pin and second contact pads；
At least one of the third pin, the 4th pin, described 5th pin and the third contact pads, it is described
At least one of third pin, the 4th pin, described 5th pin and the 4th contact pads.
2. the connection structure of number electret microphone according to claim 1, which is characterized in that the third pin,
4th pin, the 5th pin are three sections of first kind arc-shapeds on the same circular configuration of first pin
Connection structure, three sections of first kind arc-shaped connection structures are set at equal intervals.
3. it is according to claim 1 number electret microphone connection structure, which is characterized in that the third pad and
4th pad is two section of second class arc-shaped connection structure on the same circular configuration of first pad.
4. the connection structure of number electret microphone according to claim 1, which is characterized in that the third pad
Length is more than the wherein length of any one of the third pin, the 4th pin, the 5th pin；4th weldering
The length of disk is more than the wherein length of any one of the third pin, the 4th pin, the 5th pin.
5. digital electret microphone, which is characterized in that there is the connection knot of digital electret microphone described in claim 1
Structure, the third pin are data output end, and the 4th pin is input end of clock, and the 5th pin is controlled switch
End, the 5th pin contacts under the action of a control signal with the third pin or the 4th pin, to realize
Pin is stated correctly to dock with the pad of corresponding function；
The control signal is generated by a decision circuit, and signal input or signal of the decision circuit according to the pin are defeated
It does well and generates the control signal.
6. number electret microphone according to claim 5, which is characterized in that the decision circuit is located at the number
The inside of electret microphone is electrically connected with the third pin, the 4th pin and the 5th pin, the judgement electricity
Road judges whether the setting pin in the third pin, the 4th pin or the 5th pin has signal input, to connect
The pin of the collection of letters number is as input end of clock；
If clock signal is received there are one pin, using other two pin as data output end；
If receiving clock signal there are two pin, with two pins collectively as input end of clock, remaining pin is made
For data output end, outside outputting data signals.
7. number electret microphone according to claim 5, which is characterized in that the decision circuit is located at the number
The inside of electret microphone is electrically connected with the third pin, the 4th pin and the 5th pin；
The decision circuit judges whether the setting pin in the third pin, the 4th pin or the 5th pin has
Signal inputs, to receive the pin of signal as input end of clock；
When the third pad export clock signal,
If only described third pin receives clock signal, with the 4th pin, the 5th pin collectively as number
According to output terminal；
It is defeated as data using the 4th pin if the third pin receives clock signal with the 5th pin
Outlet；
It is defeated as data using the 5th pin if the third pin receives clock signal with the 4th pin
Outlet, the 5th pin are controlled switch end, and the controlled switch end switches in the case where controlling signal function with internal circuit, real
Now external outputting data signals.
8. number electret microphone according to claim 5, which is characterized in that the decision circuit is located at the number
The inside of electret microphone is electrically connected with the third pin, the 4th pin and the 5th pin,
Using the third pin as data output end；The decision circuit judges that the third pad or the 4th pad are
No to receive signal, the pad for receiving signal is thought to contact with the third pin, and another pad is as input end of clock, to described
At least one of 4th pin or the 5th pin send out clock signal；
Detect whether the 5th pin receives clock signal, if not provided, with the third pin and the 5th pin
Collectively as data output end or individually using the third pin as data output end；If so, with the 5th pin and
4th pin is collectively as input end of clock or using the 5th pin as input end of clock.
9. number electret microphone according to claim 5, which is characterized in that first pin and the described first weldering
Disk is all power input, the second pin and second pad be all ground terminal or first pin with it is described
First pad is all ground terminal, and the second pin and second pad are all power input.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410284295.XA CN105188004B (en) | 2014-06-23 | 2014-06-23 | The connection structure of digital electret microphone and digital electret microphone |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410284295.XA CN105188004B (en) | 2014-06-23 | 2014-06-23 | The connection structure of digital electret microphone and digital electret microphone |
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| CN105188004A CN105188004A (en) | 2015-12-23 |
| CN105188004B true CN105188004B (en) | 2018-06-12 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108737943A (en) * | 2017-04-17 | 2018-11-02 | 钰太芯微电子科技（上海）有限公司 | A kind of novel MEMS microphone and preparation method thereof |
| CN111010637A (en) * | 2019-12-30 | 2020-04-14 | 钰太芯微电子科技（上海）有限公司 | Back of body advances sound formula microphone with two pads |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN200966188Y (en) * | 2006-06-26 | 2007-10-24 | 潍坊歌尔电子有限公司 | Digital microphone double-layer PCB |
| CN101626532A (en) * | 2008-07-11 | 2010-01-13 | 宝星电子株式会社 | A variable directional microphone assembly and method of making the microphone assembly |
| WO2011068344A2 (en) * | 2009-12-01 | 2011-06-09 | (주)세미로드 | Mems microphone and method for manufacturing same |
| CN202178869U (en) * | 2011-08-17 | 2012-03-28 | 昌邑佳声电子有限公司 | Circuit board assembly of electret microphone |
| CN203984681U (en) * | 2014-06-23 | 2014-12-03 | 钰太芯微电子科技（上海）有限公司 | Syndeton and the digital electret microphone of numeral electret microphone |
-
2014
- 2014-06-23 CN CN201410284295.XA patent/CN105188004B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN200966188Y (en) * | 2006-06-26 | 2007-10-24 | 潍坊歌尔电子有限公司 | Digital microphone double-layer PCB |
| CN101626532A (en) * | 2008-07-11 | 2010-01-13 | 宝星电子株式会社 | A variable directional microphone assembly and method of making the microphone assembly |
| WO2011068344A2 (en) * | 2009-12-01 | 2011-06-09 | (주)세미로드 | Mems microphone and method for manufacturing same |
| CN202178869U (en) * | 2011-08-17 | 2012-03-28 | 昌邑佳声电子有限公司 | Circuit board assembly of electret microphone |
| CN203984681U (en) * | 2014-06-23 | 2014-12-03 | 钰太芯微电子科技（上海）有限公司 | Syndeton and the digital electret microphone of numeral electret microphone |
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| CN105188004A (en) | 2015-12-23 |
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