CN207304896U - A kind of audio player - Google Patents
A kind of audio player Download PDFInfo
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- CN207304896U CN207304896U CN201720984621.7U CN201720984621U CN207304896U CN 207304896 U CN207304896 U CN 207304896U CN 201720984621 U CN201720984621 U CN 201720984621U CN 207304896 U CN207304896 U CN 207304896U
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- audio player
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Abstract
The utility model discloses a kind of audio player, including battery, coding chip, the analog audio input interface for inputting simulated audio signal and the Type C interface for connecting external equipment, the input terminal of analog audio input and coding chip connects, and the output terminal of coding chip is connected with the differential pin of Type C interface；Battery is connected with the power pins of Type C interface, to power to external equipment.Pass through the audio player of the utility model, can by analog audio input interface to simulated audio signal be converted to the digital audio and video signals that can be transmitted by Type C interface so that the Type C interface earphone of audio player connection can play the audio signal.Meanwhile the audio player of the present embodiment can also power Type C interface earphone, ensure that Type C interface earphone can work normally.
Description
Technical field
Audio player technical field is the utility model is related to, can be by mould more specifically, the utility model is related to one kind
Intend the audio player that the earphone that the audio signal that audio input interface inputs is connected through Type-C interfaces plays out.
Background technology
As the mobile phone with Type-C interfaces gradually increases, Type-C interfaces can compatible audio signals, support Type-C
The earphone of interface is also more and more, and the connection mode between existing Type-C interface headphones and Type-C interface mobile phone is usually as schemed
Shown in 1.
Common Type-C earphones are required for powering to it by mobile phone terminal and could working normally on existing market, work as user
During airplane, mobile phone power-on is not allowed on aircraft, Type-C interface headphones can be caused to use, influence user experience.
Moreover, voice data corresponding with the video data played can be exported on aircraft by analog audio input interface,
Since Type-C interface headphones and analog audio input interface are incompatible, this, which also results in user, can not use Type-C
Interface headphones listen to the corresponding voice data of the video data played on aircraft, influence user experience.
Utility model content
One purpose of the utility model embodiment is to provide a kind of new skill that one of can at least solve the above problems
Art scheme.
First aspect according to the present utility model, there is provided a kind of audio player, including battery, coding chip, be used for
Input the analog audio input interface of simulated audio signal and the Type-C interfaces for connecting external equipment, the analog audio
Frequency input interface is connected with the input terminal of the coding chip, the difference of the output terminal of the coding chip and the Type-C interfaces
Separate foot connection；The battery is connected with the power pins of the Type-C interfaces, to power to the external equipment.
Optionally, the audio player further includes memory and processor, and the memory connects with the processor
Connect, the processor is connected with another input terminal of the coding chip.
Optionally, the processor is connected between the power pins of the battery and the Type-C interfaces.
Optionally, the audio player further includes power management chip, and the power management chip is connected to described
Between battery and the processor.
Optionally, CC pin of the processor also with the Type-C interfaces is connected.
Optionally, the audio broadcasts device and further includes charging interface, and the charging interface is through the power management chip
It is connected with the battery.
Optionally, the charging interface includes micro-USB interfaces, mini-USB interfaces or Lighting interfaces.
Optionally, the audio player further includes DC-DC converter, and the DC-DC converter is connected to the power supply
Between managing chip and the processor, alternatively, the DC-DC converter is connected to the power management chip and the coding
Between chip.
Optionally, the memory is by external SD storage cards or the storage core being arranged in the audio player
Piece provides.
Optionally, the coding chip and the processor are provided by an integrated chip.
One beneficial effect of the utility model is, can be by analog audio by the audio player of the utility model
The simulated audio signal that frequency input interface receives is converted to the digital audio and video signals that can be transmitted by Type-C interfaces, so that
The Type-C interface headphones of audio player connection can play the audio signal.Meanwhile the audio player of the present embodiment
It can also power to Type-C interface headphones, ensure that Type-C interface headphones can work normally.
By referring to the drawings to the detailed description of the exemplary embodiment of the utility model, the utility model it is other
Feature and its advantage will be made apparent from.
Brief description of the drawings
It is combined in the description and the attached drawing of a part for constitution instruction shows the embodiment of the utility model, and
And together with the principle that its explanation is used to explain the utility model.
Fig. 1 is the connection diagram of existing Type-C interface headphones and mobile phone；
Fig. 2 is the schematic diagram according to a kind of implementation structure of the utility model audio player；
Fig. 3 is another schematic diagram for implementing structure according to the utility model audio player.
Description of reference numerals：
U1- coding chips；U2- memories；
U3- processors；U4- power management chips；
U5-DCDC converters；J1- analog audio input interfaces；
J2-Type-C interfaces；J3- charging interfaces；
B1- batteries.
Embodiment
The various exemplary embodiments of the utility model are described in detail now with reference to attached drawing.It should be noted that：It is unless another
Illustrate outside, the component and the positioned opposite of step, numerical expression and numerical value otherwise illustrated in these embodiments is unlimited
The scope of the utility model processed.
The description only actually at least one exemplary embodiment is illustrative to be never used as to this practicality below
New and its application or any restrictions used.
It may be not discussed in detail for technology, method and apparatus known to person of ordinary skill in the relevant, but suitable
In the case of, the technology, method and apparatus should be considered as part for specification.
In shown here and discussion all examples, any occurrence should be construed as merely exemplary, without
It is as limitation.Therefore, other examples of exemplary embodiment can have different values.
It should be noted that：Similar label and letter represents similar terms in following attached drawing, therefore, once a certain Xiang Yi
It is defined, then it need not be further discussed in subsequent attached drawing in a attached drawing.
In order to solve the problems, such as it is existing in the prior art cannot use Type-C interface headphones aboard, this practicality is new
Type provides a kind of audio player, as shown in Fig. 2, including battery B1, coding chip U1, the simulation for input audio signal
The audio input interface J1 and Type-C interfaces J2 for connecting external equipment.Analog audio input interface J1 and coding chip
The input terminal connection of U1, the output terminal of coding chip U1 are connected with the differential pin of Type-C interfaces J2.Battery B1 and Type-C
The power pins connection of interface J2, to power to the external equipment of Type-C interfaces J2 connections.Wherein, analog audio input interface
J1 is such as can be 3.5mm interfaces, 2.5mm interfaces, 6.3mm interfaces, RCA interfaces or XLR interfaces.
Specifically, since the audio signal of analog audio input interface J1 inputs is analog signal, and Type-C interfaces J2
Differential pin transmission can be digital signal, therefore, which can be to analog audio by coding chip U1
Frequency input interface J1 input audio signal carry out coded treatment, i.e., after analog-to-digital conversion process by Type-C interfaces J2 export to
Its external equipment connected.Wherein, external equipment can be specifically the earphone being connected with the Type-C interfaces J2 of audio player.
The Type-C interfaces of the earphone are matched with the Type-C interfaces J2 of audio player, such as can be that the Type-C interfaces of earphone are
Female, the Type-C interfaces J2 of audio player is male connector.Moreover, the earphone of Type-C interfaces needs audio player to supply it
Electricity can normal use, therefore, battery B1 is connected with the power pins VBUS of Type-C interfaces J2, to power to earphone, protect
Demonstrate,prove the normal work of earphone.
Further, the differential pin for the Type-C interfaces J2 being connected with the output terminal of coding chip U1 can be USB2.0
Differential pin TX1+, TX1- of 3.0 standard of differential pin D+ and D- or USB of standard either differential pin TX2
+、TX2-.So, the output terminal of coding chip U1 is similarly differential pin.
In the utility model embodiment, illustrated so that analog audio input interface J1 is 3.5mm interfaces as an example.Herein
On the basis of, analog audio input interface can be 3.5mm male connectors or 3.5mm females.The 3.5mm of the audio player
Interface can be for receiving the corresponding audio signal of video played on aircraft.The 3.5mm interfaces have L channel contact and
R channel contact, is respectively used to transmission left channel audio signal and right channel audio signal, as such, it can be that the 3.5mm interfaces
L channel contact and left channel signals input terminal on R channel contact and coding chip U1 and right-channel signals input terminal connect
Connect.
In this way, by the audio player of the utility model, the analog audio that analog audio input interface can be arrived
Frequency signal is converted to the digital audio and video signals that can be transmitted by Type-C interfaces, so that the Type-C of audio player connection
Interface headphones can play the audio signal.Meanwhile the audio player of the present embodiment can also supply Type-C interface headphones
Electricity, ensures that Type-C interface headphones can work normally.It is possible to further cause user to be played aboard using the audio
Device and corresponding Type-C interface headphones, can listen to the audio signal played on aircraft, lift user experience.
It should be noted that above-mentioned audio player can also play the audio signal in other equipment, only need to be by audio
The analog audio input interface of player is connected with the analogue audio frequency output interface in other equipment, and the utility model is to sound
The equipment that the analog audio input interface of frequency player can connect is not limited.
In a specific embodiment of the utility model, as shown in figure 3, the audio player further include memory U2 and
Processor U3, memory U2 are connected with processor U3, and processor U3 is connected with another input terminal of coding chip U1.Wherein, deposit
Voice data, voice data form such as can be MP3 either WAV have been prestored in reservoir U2.Processor U3 can be with
Voice data is read from memory U2, and the voice data of reading is converted to the audio signal of I2S forms, then passes through I2S
Bus transfer to the I2S pins of coding chip U1, (including draw by serial clock pin SCLK, frame clock pins LRCK and serial data
Foot SDATA)；The I2S format audio signals received are encoded to differential digital signal, defeated through differential signal by coding chip U3 again
Outlet is exported to the differential pin of Type-C interfaces J2.Specifically, another input terminal of coding chip U1 is I2S pins, processing
Device U3 is connected with coding chip U1 by I2S buses.
In this way, the earphone of Type-C interfaces J2 connections can play what is prestored in the memory U1 of audio player
Voice data.Further improve user experience.
Specifically, memory U2 can be carried by SD storage cards or the storage chip being provided in the audio player
For.
Further, coding chip U1 and processor U3 can be provided by an integrated chip.In this way, audio can be reduced
The circuit footprint of player.
Due to the power pins VBUS of Type-C interfaces J2 need to be 5V to ensure that the earphone of connection works normally, and battery B1
The supply voltage of offer is typically smaller than 5V, such as can be 4.2V, therefore, processor U3 can be connected to battery B1 and
Between the power pins VBUS of Type-C interfaces J2.The supply voltage that processor U3 will be provided according to battery B1 exports a 5V
Voltage to Type-C interfaces J2 power pins VBUS, so as to exterior equipment charge.
Further, which further includes power management chip U4, and power management chip U4 is connected to battery B1
Between processor U3.Power management chip U4 be shouldered in audio player conversion to electric energy, distribution, detection and its
The chip of the responsibility of his electric energy management, is mainly responsible for recognition processor U3 power supply amplitudes, produces corresponding short square ripple, promote rear class
Circuit carries out power output.
Further, CC pins of the processor U3 also with Type-C interfaces J2 is connected.Type-C interfaces J2 has CC1 pins
With CC2 pins, the different pull-up of resistance value or pull down resistor are connected with the two CC pins.Connected when on Type-C interfaces J2
During the external equipment of corresponding interface, processor U3 is by detecting the voltage of the two CC pins, it may be determined that the class of external equipment
Type, can also determine the positive anti-plug of Type-C interfaces J2.
Specifically, the type of external equipment includes slave device type and the type of main equipment.Type is the element of slave device
Can be earphone etc., type can be power-supply device etc. for the element of main equipment.When determining that external equipment is slave device type
When, battery B1 can be charged by processor U3 to slave device.When it is main device type to determine external equipment, master sets
It is standby to be charged by Type-C interfaces J2 and processor U3 to battery B1.
Moreover, the output terminal in coding chip U1 is connected with the differential pin of 3.0 standards of USB of Type-C interfaces J2
In the case of, processor U3 when the voltage for detecting CC1 pins changes, can control the output terminal of coding chip U1 with
The differential pin TX1+ of Type-C interfaces J2 is connected with TX1-；Processor U3 can become in the voltage for detecting CC2 pins
During change, the output terminal of control coding chip U1 is connected with the differential pin TX2+ and TX2- of Type-C interfaces J2.
Yet further, as shown in figure 3, the audio player further includes charging interface J3, charging interface J3 is through power supply
Managing chip U4 is connected with battery B1.Power management chip U4 can control charging interface J3 to charge to battery B1.
In this way, pass through the external equipment playing audio signals such as the earphone of Type-C interfaces J2 connections in the audio player
At the same time it can also be charged by charging interface J3.And then user experience can be lifted.It is of course also possible to played in audio
Device charges the battery B1 of audio player by charging interface J3.
Wherein, charging interface J3 can be micro-USB interfaces, mini-USB interfaces or Lighting interfaces.
On this basis, if the supply voltage of coding chip U1 and processor U3 is different, or it is to provide coding chip
The integrated chip of U1 and processor U3 have different supply voltages, then, which also needs to include DC-DC converter
U5, DC-DC converter U5 can be connected between power management chip U4 and processor U3, in this way, being carried in power management chip U4
When the voltage of confession is the operating voltage needed for coding chip U1, power management chip U4 can be exported by DC-DC converter U5
Voltage conversion for the operating voltage needed for processor U3, the voltage after DC-DC converter U5 is converted is supplied to processor
U3, so that processor U3 is worked normally.Alternatively, DC-DC converter U5 can also be connected to power management chip U4 and coding chip
Between U1, in this way, when the voltage that power management chip U4 is provided is the operating voltage needed for processor U3, changed by DCDC
Device U5 can be by voltage conversion that power management chip U4 is exported needed for coding chip U1 operating voltage, DC-DC converter U5
Voltage after being converted is supplied to coding chip U1, so that coding chip U1 is worked normally.
For example, in the case that the supply voltage in coding chip U1 is 3.3V, the supply voltage of processor U3 is 1.8V, electricity
The supply voltage that source control chip U4 can provide battery is converted to the supply voltage 3.3V of coding chip U1 and is provided to volume
Code chip U1, and DC-DC converter U5 can be that the voltage of 3.3V is switched to 1.8V to be provided to processor U3, to ensure to encode core
Piece U1 and processor U3 can be worked normally.
The various embodiments described above primary focus describes the difference with other embodiment, but those skilled in the art should be clear
Chu, the various embodiments described above can be used alone or be combined with each other as needed.
Although some specific embodiments of the utility model are described in detail by example, this area
It is to be understood by the skilled artisans that example above merely to illustrate, rather than in order to limit the scope of the utility model.This
Field it is to be understood by the skilled artisans that can not depart from the scope of the utility model and spirit in the case of, to above example
Modify.The scope of the utility model is defined by the following claims.
Claims (10)
1. a kind of audio player, it is characterised in that including battery (B1), coding chip (U1), for inputting analogue audio frequency letter
Number analog audio input interface (J1) and Type-C interfaces (J2) for connecting external equipment, the analog audio input
Interface (J1) is connected with the input terminal of the coding chip (U1), and the output terminal of the coding chip (U1) connects with the Type-C
The differential pin connection of mouth (J2)；The battery (B1) is connected with the power pins of the Type-C interfaces (J2), with to described
External equipment is powered.
2. audio player according to claim 1, it is characterised in that the audio player further includes memory (U2)
With processor (U3), the memory (U2) is connected with the processor (U3), the processor (U3) and the coding chip
(U1) another input terminal connection.
3. audio player according to claim 2, it is characterised in that the processor (U3) is connected to the battery
(B1) between the power pins of the Type-C interfaces (J2).
4. audio player according to claim 3, it is characterised in that the audio player further includes power management core
Piece (U4), the power management chip (U4) are connected between the battery (B1) and the processor (U3).
5. audio player according to claim 4, it is characterised in that the processor (U3) also connects with the Type-C
The CC pins connection of mouth (J2).
6. audio player according to claim 4, it is characterised in that the audio player further includes charging interface
(J3), the charging interface (J3) is connected through the power management chip (U4) with the battery (B1).
7. audio player according to claim 6, it is characterised in that the charging interface (J3) includes micro-USB
Interface, mini-USB interfaces or Lighting interfaces.
8. audio player according to claim 4, it is characterised in that the audio player further includes DC-DC converter
(U5), the DC-DC converter (U5) is connected between the power management chip (U4) and the processor (U3), alternatively, institute
DC-DC converter (U5) is stated to be connected between the power management chip (U4) and the coding chip (U1).
9. audio player according to claim 2, it is characterised in that the memory (U2) is by external SD storage cards
Or the storage chip being arranged in the audio player provides.
10. audio player according to claim 2, it is characterised in that the coding chip (U1) and the processor
(U3) provided by an integrated chip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720984621.7U CN207304896U (en) | 2017-08-08 | 2017-08-08 | A kind of audio player |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720984621.7U CN207304896U (en) | 2017-08-08 | 2017-08-08 | A kind of audio player |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207304896U true CN207304896U (en) | 2018-05-01 |
Family
ID=62449008
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720984621.7U Active CN207304896U (en) | 2017-08-08 | 2017-08-08 | A kind of audio player |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207304896U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109474047A (en) * | 2018-12-29 | 2019-03-15 | 金瓜子科技发展（北京）有限公司 | A kind of back splint battery |
-
2017
- 2017-08-08 CN CN201720984621.7U patent/CN207304896U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109474047A (en) * | 2018-12-29 | 2019-03-15 | 金瓜子科技发展（北京）有限公司 | A kind of back splint battery |
| CN109474047B (en) * | 2018-12-29 | 2024-10-18 | 金瓜子科技发展（北京）有限公司 | Back splint battery |
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