CN207573576U - C-type interface high-resolution digital earphone - Google Patents
C-type interface high-resolution digital earphone Download PDFInfo
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- CN207573576U CN207573576U CN201721213574.2U CN201721213574U CN207573576U CN 207573576 U CN207573576 U CN 207573576U CN 201721213574 U CN201721213574 U CN 201721213574U CN 207573576 U CN207573576 U CN 207573576U
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Abstract
C-type interface high-resolution digital earphone, it is related to a kind of improvement of earphone accessory, and in particular to a kind of improvement of digital earphone interface.It includes type c connectors, decoding circuit encapsulation, audio coding decoding circuit 3, earphone playback device, decoding circuit encapsulation is arranged on the outside of type C connectors and is connected by tone frequency channel wire, audio coding decoding circuit is arranged on the side of decoding circuit encapsulation, and earphone playback device is connected to by tone frequency channel wire on audio coding decoding circuit.The utility model is that circuit and plug is independent, in order to more convenient production and the promotion of yields；Audio resolution at present on the market only has 48KHZ simultaneously.And the utility model can accomplish 96/192/384HZ.The utility model can be applicable in existing all earplugs in the market.
Description
Technical field
The utility model is related to a kind of improvement of earphone accessory, and in particular to a kind of improvement of digital earphone interface.
Background technology
At present in the world there are two general earphone interface standards, one be OMTP standard, one be CTIA standard.
In general, international manufacturer largely uses CTIA standards, such as the iPhone ears of the U.S., Hong Kong and other international markets
Machine, and domestic crudely-made articles product then needs to support OMTP standards.1st, international standard（CTIA）3.5 millimeters of interfaces, contact pin connection
It is：L channel-right channel-ground wire-microphone.2 national standards（OMTP）3.5 millimeters of interfaces, contact pin connection is：L channel-
Right channel-microphone-ground wire.
Apple Inc. is proposed lightning interface headphones, lightning interface headphones and 3.5mm since iPhone7
The difference of interface headphones maximum should be that lightning interfaces can allow earphone to integrate DAC amplifiers, realize more high tone quality table
Existing, better autgmentability, lightning interface headphones are powered by apple, support reception/transmission 48kHz digital audio and video signals, from
Hi-Fi sound quality, an independent DAC are obtained on digital equipment（Digital analog converter）Be it is essential, it is otherwise high-end again
Earphone can not also exploit one's power.
Also begin to some type-c headset plugs occur now, the digital decoding circuit of these type-c headset plugs is general
Resolution be 48KHZ Sampling rates, and decoding circuit is encapsulated in the plug end of type-c headset plugs.Envelope
The process is more complicated, and production process is susceptible to the problem of yield rate is low for dress.
Utility model content
The purpose of this utility model is that it is in view of the drawbacks of the prior art and insufficient, a kind of c-type interface height parsing number is provided
Word earphone, it sets decoding circuit and plug independently of each other, and simplified production process for encapsulating reduces production cost；Also make
The yields for obtaining production process is greatly improved；Audio resolution can also be improved to 96/192/384KHZ.
To achieve the above object, the utility model is using following technical scheme：It includes type-c connectors 1, decoding electricity
Road encapsulation 2, audio coding decoding circuit 3, earphone playback device 4, decoding circuit encapsulation 2 are arranged on the outside of type-C connectors 1 and lead to
Tone frequency channel wire connection is crossed, audio coding decoding circuit 3 is arranged on the side of decoding circuit encapsulation 2, and earphone playback device 4 is connected by tone frequency channel wire
It is connected on audio coding decoding circuit 3.
The audio coding decoding circuit 3 includes audio A/D collecting units 31, type-c interface circuits 32, spi bus electricity
Road 33, power circuit 34, audio amplifier circuit 35, the entrance of type-c interface circuits 32 are connected on type-c connectors 1,
The output terminal of type-c interface circuits 32 is connected to spi bus circuit 33, the power end connection power circuit of spi bus circuit 33
34, the output terminal of spi bus circuit 33 is connected with audio amplifier circuit 35, the signal output end engaging lug of audio amplifier circuit 35
Machine player 4.
Spi bus circuit 34 includes AT25F512 chips and storage circuit.
The utility model is that circuit and plug is independent, in order to more convenient production and the promotion of yields；
Audio resolution at present on the market only has 48KHZ simultaneously.And the utility model can accomplish 96/192/384HZ.This practicality is new
Type can be applicable in existing all earplugs in the market.
Description of the drawings
It in order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only
It is some embodiments of the utility model, for those of ordinary skill in the art, before not making the creative labor property
It puts, can also be obtained according to these attached drawings other attached drawings.
Fig. 1 is the structure diagram of the utility model；
Fig. 2 is the circuit structure schematic block diagram of the utility model sound intermediate frequency coding-decoding circuit 3.
Reference sign：Type-c connectors 1, decoding circuit encapsulation 2, audio coding decoding circuit 3, earphone playback device 4, sound
Frequency A/D collecting units 31, type-c interface circuits 32, spi bus circuit 33, power circuit 34, audio amplifier circuit 35.
Specific embodiment
Referring to shown in Fig. 1-Fig. 2, present embodiment the technical solution adopted is that：It is by type-c connectors 1, decoding electricity
Road encapsulation 2, audio coding decoding circuit 3, earphone playback device 4 form, and decoding circuit encapsulation 2 is arranged on the outside of type-C connectors 1
And connected by tone frequency channel wire, audio coding decoding circuit 3 is arranged on the side of decoding circuit encapsulation 2, and earphone playback device 4 passes through audio
Line is connected on audio coding decoding circuit 3.
The audio coding decoding circuit 3 includes audio A/D collecting units 31, type-c interface circuits 32, spi bus electricity
Road 33, power circuit 34, audio amplifier circuit 35, the entrance of type-c interface circuits 32 are connected on type-c connectors 1,
The output terminal of type-c interface circuits 32 is connected to spi bus circuit 33, the power end connection power circuit of spi bus circuit 33
34, the output terminal of spi bus circuit 33 is connected with audio amplifier circuit 35, the signal output end engaging lug of audio amplifier circuit 35
Machine player 4.
Spi bus circuit 34 includes AT25F512 chips and storage circuit.
The utility model is that circuit and plug is independent, in order to more convenient production and the promotion of yields；
Audio resolution at present on the market only has 48KHZ simultaneously.And the utility model can accomplish 96/192/384HZ.This practicality is new
Type can be applicable in existing all earplugs in the market.
The above is merely intended for describing the technical solutions of the present application, but not for limiting the present application, those of ordinary skill in the art couple
The other modifications or equivalent replacement that the technical solution of the utility model is made, without departing from technical solutions of the utility model
Spirit and scope should all cover in the right of the utility model.
Claims (3)
1.C type interface high-resolution digital earphones, it is characterised in that：It includes type-c connectors (1), decoding circuit encapsulation (2), sound
Frequency coding-decoding circuit (3), earphone playback device (4), decoding circuit encapsulation (2) are arranged on the outside of type-C connectors (1) and pass through
Tone frequency channel wire connects, and audio coding decoding circuit (3) is arranged on the side of decoding circuit encapsulation (2), and earphone playback device (4) passes through audio
Line is connected on audio coding decoding circuit (3).
2. c-type interface high-resolution digital earphone according to claim 1, it is characterised in that：The audio coding decoding electricity
Road (3) comprising audio A/D collecting units (31), type-c interface circuits (32), spi bus circuit (33), power circuit (34),
Audio amplifier circuit (35), the entrance of type-c interface circuits (32) are connected on type-c connectors (1), type-c interface circuits
(32) output terminal is connected to spi bus circuit (33), the power end connection power circuit (34) of spi bus circuit (33), SPI
The output terminal of bus circuit (33) is connected with audio amplifier circuit (35), the signal output end engaging lug of audio amplifier circuit (35)
Machine player (4).
3. c-type interface high-resolution digital earphone according to claim 2, it is characterised in that：The spi bus circuit
(32) comprising AT25F512 chips and storage circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721213574.2U CN207573576U (en) | 2017-09-20 | 2017-09-20 | C-type interface high-resolution digital earphone |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721213574.2U CN207573576U (en) | 2017-09-20 | 2017-09-20 | C-type interface high-resolution digital earphone |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207573576U true CN207573576U (en) | 2018-07-03 |
Family
ID=62694460
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721213574.2U Active CN207573576U (en) | 2017-09-20 | 2017-09-20 | C-type interface high-resolution digital earphone |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207573576U (en) |
-
2017
- 2017-09-20 CN CN201721213574.2U patent/CN207573576U/en active Active
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