CN207884866U - A kind of Multifunctional audio converter - Google Patents
A kind of Multifunctional audio converter Download PDFInfo
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- CN207884866U CN207884866U CN201820333454.4U CN201820333454U CN207884866U CN 207884866 U CN207884866 U CN 207884866U CN 201820333454 U CN201820333454 U CN 201820333454U CN 207884866 U CN207884866 U CN 207884866U
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Abstract
The utility model discloses a kind of Multifunctional audio converters, including microprocessor and the memory module being connected electrically, reception of wireless signals module, wire signal interface module, analog-digital converter, broadcast singal demodulation module, display screen, digital analog converter, analog-digital converter input terminal connects microphone amplifier, microphone amplifier input terminal connects microphone input interface, broadcast singal demodulation module input terminal connects broadcast signal reception module, digital analog converter output end connects speaker amplifier, Earphone Amplifier, speaker amplifier, Earphone Amplifier output end connection signal output interface.The utility model can be wireless or wired by multiclass audio signal transmission mode, receive the audio signal that external all kinds of audio frequency apparatuses are sent out, and convert output, realize general conversion, vdiverse in function, flexibility is good.In addition, transformed signal is amplified output by low distortion and low dissipation amplifier, distortion is small, and sound quality is good, and using effect is good.
Description
Technical field
The utility model is related to audio converter technical field more particularly to a kind of Multifunctional audio converters.
Background technology
When the audio signal being stored in computer or other operating systems is wanted to carry out audio by equipment such as loud speakers
When broadcasting, need to connect an audio converter between computer and playback equipment, on the one hand audio converter plays conversion and connects
The audio signal of number format is converted to the audio signal of analog format by the effect of mouth, another aspect audio converter.
The audio converter of the prior art has a single function, and is only capable of realizing the format conversion of audio signal, or by wired biography
Defeated audio signal is converted to the signal of wireless transmission, can not achieve the general conversion of all kinds of audio signal sources, has a foregone conclusion
It is sex-limited.In addition, when transformed signal is by amplifying, then being played by speaker or earphone, distortion is larger, and sound quality is not good enough,
Conversion effect is bad.
Invention content
In view of the drawbacks described above of the prior art, the technical problem to be solved by the utility model is to provide a kind of multi-functional
Audio converter, so as to solve the deficiencies in the prior art.
To achieve the above object, the utility model provides a kind of Multifunctional audio converter, including microprocessor and with
The memory module of microprocessor electrical connection, reception of wireless signals module, wire signal interface module, analog-digital converter, broadcast letter
Number demodulation module, display screen, digital analog converter, the analog-digital converter input terminal connect microphone amplifier, the microphone
Amplifier in connects microphone input interface, and the broadcast singal demodulation module input terminal connects broadcast signal reception mould
Block, the digital analog converter output end connection speaker amplifier, Earphone Amplifier, the speaker amplifier, earphone amplification
Device output end connection signal output interface.
A kind of above-mentioned Multifunctional audio converter, the microprocessor are microcontroller, DSP or FPGA.
A kind of above-mentioned Multifunctional audio converter, the memory module be SD card, USB flash disk, hard disk any one.
A kind of above-mentioned Multifunctional audio converter, the reception of wireless signals module are 4G modules, WIFI module, bluetooth
Module any one.
A kind of above-mentioned Multifunctional audio converter, the wire signal interface module include network interface, optical fiber interface, Card
Head interface, USB interface any one.
A kind of above-mentioned Multifunctional audio converter, the speaker amplifier are D class speaker amplifiers NCP2824.
A kind of above-mentioned Multifunctional audio converter, the Earphone Amplifier are stereophone amplifier NCP2815.
A kind of above-mentioned Multifunctional audio converter, the signal output interface include 3.5 audio output ports and 6.5 audios
Delivery outlet.
The utility model has the beneficial effects that：
The utility model can be wireless or wired by multiclass audio signal transmission mode, receive external each class audio frequency
The audio signal that equipment is sent out, and output is converted, realize the general conversion of all kinds of audio signal sources, vdiverse in function, flexibility is good.
In addition, transformed signal is amplified output by low distortion and low dissipation amplifier, distortion is small, and sound quality is good, uses effect
Fruit is good.
The technique effect of the design of the utility model, concrete structure and generation is made furtherly below with reference to attached drawing
It is bright, to be fully understood from the purpose of this utility model, feature and effect.
Description of the drawings
Fig. 1 is the Control system architecture block diagram of the utility model；
Fig. 2 is the forward sight structural schematic diagram of the utility model；
Fig. 3 is the backsight structural representation of the utility model.
Specific implementation mode
As shown in Figure 1, a kind of Multifunctional audio converter, including microprocessor 1 and the storage that is electrically connected with microprocessor 1
Module 2, reception of wireless signals module 3, wire signal interface module 4, analog-digital converter 7, broadcast singal demodulation module 9, display
Screen 10, digital analog converter 11,7 input terminal of the analog-digital converter connect microphone amplifier 6, and the microphone amplifier 6 is defeated
Enter end connection microphone input interface 5,9 input terminal of the broadcast singal demodulation module connection broadcast signal reception module 8 is described
11 output end of digital analog converter connects speaker amplifier 12, Earphone Amplifier 13, the speaker amplifier 12, earphone amplification
13 output end connection signal output interface 14 of device.
In the present embodiment, the microprocessor 1 is microcontroller, DSP or FPGA.
In the present embodiment, the memory module 2 be SD card, USB flash disk, hard disk any one.
In the present embodiment, the reception of wireless signals module 3 be 4G modules, WIFI module, bluetooth module any one.
In the present embodiment, the wire signal interface module 4 include network interface 41, optical fiber interface 42, blocking head interface 43,
USB interface 44 any one, the signal output interface 14 include 3.5 audio output ports 141 and 6.5 audio output ports 142, such as
Shown in Fig. 3.
In the present embodiment, the speaker amplifier 12 is D class speaker amplifiers NCP2824.It can be effectively reduced
High frequency E MI interference to radio circuit, while ensuring that loud speaker plays sound by " not slicing " automatic growth control (AGC) function
Low distortion is provided when frequency, and against damages by " load limiter " AGC function and protecting loud speakers.
In the present embodiment, the Earphone Amplifier 13 is stereophone amplifier NCP2815.The ultralow of 1.8 mA is provided
Quiescent current extends smartphone audio frequency reproduction time.
The audio converter of the utility model can be by way of wire transmission, such as cable, optical fiber, Card line, USB numbers
After thering is external storage according to line the signal of the equipment of audio signal source to convert, then pass through earphone or speaker broadcasting, external audio
Signal source equipment can be computer, notebook, PAD, TV, MP3, MP4 or other audio-frequence player devices, as long as more than supporting
Data-interface.External signal can also be wirelessly received, 4G, WIFI, the intelligent hand of any one connection of bluetooth are such as passed through
Machine is played after either TV converts its audio signal source by earphone or speaker, to achieve the effect that client's needs.It can be with
Broadcast singal is received, is played by earphone or speaker after being converted, meets the needs of liking to listen to the radio programme user crowd.It can also
By user oneself by microphone input voice signal, such as in occasions such as performance, meetings, so that it may be believed with the sound for going out human hair
Number conversion, amplification after exported by speaker.
In addition, the audio converter due to the utility model uses stereophone amplifier NCP2815 in output end, it can
To provide the ultra low quiescent current of 1.8 mA, the audio presentation time of the battery powered audio devices such as smart mobile phone can be extended.
Speaker amplifier is D class speaker amplifier NCP2824, can be effectively reduced the high frequency E MI interference to radio circuit, together
When provide low distortion when ensuring that loud speaker plays audio by " not slicing " automatic growth control (AGC) function, and by " power
Limiter " AGC function and protecting loud speakers are against damages.
The preferred embodiment of the utility model described in detail above.It should be appreciated that the ordinary skill people of this field
Member according to the present utility model can conceive without creative work makes many modifications and variations.Therefore, all this technology necks
Technical staff passes through logic analysis, reasoning or limited reality on the basis of existing technology according to the design of the utility model in domain
Available technical solution is tested, it all should be in the protection domain being defined in the patent claims.
Claims (8)
1. a kind of Multifunctional audio converter, it is characterised in that：Including microprocessor（1）With with microprocessor（1）Electrical connection
Memory module（2）, reception of wireless signals module（3）, wire signal interface module（4）, analog-digital converter（7）, broadcast singal solution
Mode transfer block（9）, display screen（10）, digital analog converter（11）, the analog-digital converter（7）Input terminal connects microphone amplifier
（6）, the microphone amplifier（6）Input terminal connects microphone input interface（5）, the broadcast singal demodulation module（9）It is defeated
Enter end connection broadcast signal reception module（8）, the digital analog converter（11）Output end connects speaker amplifier（12）, earphone
Amplifier（13）, the speaker amplifier（12）, Earphone Amplifier（13）Output end connection signal output interface（14）.
2. a kind of Multifunctional audio converter as described in claim 1, it is characterised in that：The microprocessor（1）For monolithic
Machine, DSP or FPGA.
3. a kind of Multifunctional audio converter as described in claim 1, it is characterised in that：The memory module（2）For SD card,
USB flash disk, hard disk any one.
4. a kind of Multifunctional audio converter as described in claim 1, it is characterised in that：The reception of wireless signals module
（3）For 4G modules, WIFI module, bluetooth module any one.
5. a kind of Multifunctional audio converter as described in claim 1, it is characterised in that：The wire signal interface module
（4）Including network interface（41）, optical fiber interface（42）, blocking head interface（43）, USB interface（44）Any one.
6. a kind of Multifunctional audio converter as described in claim 1, it is characterised in that：The speaker amplifier（12）For
D class speaker amplifiers NCP2824.
7. a kind of Multifunctional audio converter as described in claim 1, it is characterised in that：The Earphone Amplifier（13）It is vertical
Body sound Earphone Amplifier NCP2815.
8. a kind of Multifunctional audio converter as described in claim 1, it is characterised in that：The signal output interface（14）Packet
Include 3.5 audio output ports（141）With 6.5 audio output ports（142）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820333454.4U CN207884866U (en) | 2018-03-12 | 2018-03-12 | A kind of Multifunctional audio converter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820333454.4U CN207884866U (en) | 2018-03-12 | 2018-03-12 | A kind of Multifunctional audio converter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207884866U true CN207884866U (en) | 2018-09-18 |
Family
ID=63496001
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820333454.4U Active CN207884866U (en) | 2018-03-12 | 2018-03-12 | A kind of Multifunctional audio converter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207884866U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110267146A (en) * | 2019-07-16 | 2019-09-20 | 深圳小哞科技有限公司 | Earphone adapter and its control method |
-
2018
- 2018-03-12 CN CN201820333454.4U patent/CN207884866U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110267146A (en) * | 2019-07-16 | 2019-09-20 | 深圳小哞科技有限公司 | Earphone adapter and its control method |
| CN110267146B (en) * | 2019-07-16 | 2020-12-04 | 深圳小哞科技有限公司 | Earphone adapter and control method thereof |
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