CN209030392U - Bluetooth solid number of people sound-recording headphone - Google Patents
Bluetooth solid number of people sound-recording headphone Download PDFInfo
- Publication number
- CN209030392U CN209030392U CN201821485764.4U CN201821485764U CN209030392U CN 209030392 U CN209030392 U CN 209030392U CN 201821485764 U CN201821485764 U CN 201821485764U CN 209030392 U CN209030392 U CN 209030392U
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- China
- Prior art keywords
- chip
- bluetooth
- foot
- circuit
- feet
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Abstract
The utility model discloses a kind of bluetooth solid number of people sound-recording headphones, the lapel mike for including two In-Ear Headphones in left and right and matching with In-Ear Headphones, there is circuit board in earphone, the circuit of circuit board includes Bluetooth chip, governor circuit, horn assembly, control button, analog to digital conversion circuit and power-supplying circuit；Bluetooth transmission chip uses IS1621 chip, and bluetooth receives chip and uses CRS8640 chip；Main control chip uses CY8C3446 chip；Main control chip is connected with LIGHTNING interface and connection apple trusted authentication chip MFI337；The utility model also can be used normally from realization apple products by the way that apple trusted authentication chip MFI337 is added in circuit, improve Products Compatibility；And cooperate small-sized microphone using In-Ear Headphones, the sense of user's ear is received in external auditory canal, due to receiving position and play position cooperation user's body and ear structure, can effectively restore the stereo perception of user's primary sound sense.
Description
Technical field
The utility model relates to earphone products technical fields, and in particular to a kind of recordable bluetooth headset.
Background technique
For small Bluetooth earphone due to easy to use, stealthy effect is good, and it is every to oppress ear, has on more comfortable etc. excellent
Point, therefore the welcome by more and more people.Sound-recording headphone can realize the sound by earphone input user, and function is more rich
Richness, therefore it is using more and more extensive.General stereophonic recording earphone will appear sense of hearing difference because everyone bodily form is different,
And occur recording variation with movement, and general stereophonic recording earphone compatible is bad, cannot such as be compatible with apple equipment,
It brings inconvenience to the use of user.
Utility model content
The technical problem to be solved by the present invention is to provide a kind of designs of structure more rationally, uses more convenient, compatibility
Better bluetooth solid number of people sound-recording headphone.
In order to solve the above technical problems, the utility model adopts the following technical solution: a kind of bluetooth solid number of people recording ear
The lapel mike that machine includes two In-Ear Headphones in left and right and is matched with In-Ear Headphones, has circuit in earphone
Plate, the circuit of circuit board include that Bluetooth chip, governor circuit, horn assembly, control button, analog to digital conversion circuit and power supply supply
Circuit, Bluetooth chip are connected with antenna, and microphone connects Bluetooth chip, Bluetooth chip and analog to digital conversion circuit connection master control electricity
Road, power-supplying circuit connect Bluetooth chip, it is characterised in that: the Bluetooth chip includes Bluetooth transmission chip U2 and bluetooth
Chip U6 is received, Bluetooth transmission chip U2 uses IS1621 chip, and bluetooth receives chip U6 and uses CRS8640 chip；Master control electricity
The main control chip U1 on road uses CY8C3446 chip；
Analog to digital conversion circuit use AK5357A chip, 9 feet, 10 feet, 11 feet, 12 feet, 13 feet respectively with main control chip U1
36 feet, 35 feet, 34 feet, 33 feet, the connection of 32 feet, 16 feet, 17 feet of main control chip U1 are connected with LIGHTNING interface J1, and
Its 24 foot and 25 feet are separately connected 6 feet and 2 feet of apple trusted authentication chip U5, and apple trusted authentication chip U5 uses MFI337 chip；
The KTX foot of Bluetooth transmission chip U2 is connected with transmitting antenna ANT1, and MIC_BIAS foot is connected with two Mikes of left and right
Wind L_MIC, R_MIC, two earphones in left and right respectively match a microphone；Bluetooth receives the VDD_IO foot connection power supply power supply electricity of chip U6
Road；
The BT_RF foot that bluetooth receives chip U6 connects receiving antenna ANT, and SPKR_RP foot, SPKR_RN foot connect auris dextra
The loudspeaker R_SP of machine, and SPKR_LP foot, SPKR_LN foot connect the loudspeaker R_SP of left earphone；The VBAT_ of bluetooth reception chip U6
SENSE foot and VBAT foot connect power-supplying circuit；The P1_5 foot connection Bluetooth transmission chip U6's of Bluetooth transmission chip U2
PI01 foot.
Bluetooth transmission chip U2 is connected with LED and key, and wherein its 37 foot is connected with LED1.
Bluetooth receives chip U6 and is connected with LED and key, and wherein key S3 connection bluetooth receives the K4 foot and electricity of chip U6
Source power supply circuit forms power switch control key, and key S1 and key S2 are then separately connected the E9 and E10 of Bluetooth control chip U6
Foot forms volume control key, and LED is then keyed with the K1 and J2 of Bluetooth control chip U6.
The bluetooth receives chip U6 and is also connected with TYPEC interface, and the K5 foot that TYPEC interface and bluetooth receive chip connects
It connects.
It further include having operational amplifier circuit, operational amplifier circuit includes operational amplifier U4-A and U4-B and corresponding peripheral circuit,
The model of two operational amplifiers is BA4510FV, and the two is connect with main control chip U1 respectively, and wherein operational amplifier U4-A
In the circuit of left earphone, left microphone is connected；Operational amplifier U4-B is located in the circuit of left earphone, connects right Mike
Wind.
It after the equipment such as mobile phone connect application program, is connected by apple lightning interface with receiver, user speaks recording
By Bluetooth transmission chip U2(IS1621) processing by recorded audio signals be transmitted to bluetooth receive chip U6(CSR8640), then lead to
Main control chip U1 control is crossed being loaded in application program of mobile phone end under recorded audio signals.
The utility model, can also be normal from realization apple products by the way that apple trusted authentication chip MFI337 is added in circuit
It uses, improves Products Compatibility；And cooperate small-sized microphone using In-Ear Headphones, the sense of user's ear is received in external auditory canal, due to
Position and play position cooperation user's body and ear structure are received, the stereo perception of user's primary sound sense can be effectively restored, tie
It is three-dimensional to close Bluetooth technology 3D() number of people recording technology, cooperate intelligent apparatus, can flow using recording and play.
Detailed description of the invention
A is Bluetooth transmission circuit in Fig. 1；
B is that bluetooth receives circuit in Fig. 2；
C is operational amplifier circuit in Fig. 3；
D is analog to digital conversion circuit in Fig. 4, E is CY8C3446 governor circuit；
F is that bluetooth receives chip (CSR8640) circuit in Fig. 5；
Fig. 6 is the utility model recording partial block diagram schematic.
Specific embodiment
The utility model is described further with reference to the accompanying drawing.
In the present embodiment ,-Fig. 5 and Fig. 6, the bluetooth solid number of people sound-recording headphone, include left and right two referring to Fig.1
In-Ear Headphones and the lapel mike to match with In-Ear Headphones, have circuit board, the circuit packet of circuit board in earphone
Bluetooth chip, governor circuit, horn assembly, control button, analog to digital conversion circuit and power-supplying circuit are included, Bluetooth chip connects
It is connected to antenna, microphone connects Bluetooth chip, and Bluetooth chip and analog to digital conversion circuit connect governor circuit, and power-supplying circuit connects
Connect Bluetooth chip；The Bluetooth chip includes that Bluetooth transmission chip U2 and bluetooth receive chip U6, and Bluetooth transmission chip U2 is adopted
With IS1621 chip, bluetooth receives chip U6 and uses CRS8640 chip；The main control chip U1 of governor circuit uses CY8C3446 core
Piece；
Analog to digital conversion circuit use AK5357A chip, 9 feet, 10 feet, 11 feet, 12 feet, 13 feet respectively with main control chip U1
36 feet, 35 feet, 34 feet, 33 feet, the connection of 32 feet, 16 feet, 17 feet of main control chip U1 are connected with LIGHTNING interface J1, and
Its 24 foot and 25 feet are separately connected 6 feet and 2 feet of apple trusted authentication chip U5, and apple trusted authentication chip U5 uses MFI337 chip, use
In compatible with apple products；
The KTX foot of Bluetooth transmission chip U2 is connected with transmitting antenna ANT1, and MIC_BIAS foot is connected with two Mikes of left and right
Wind L_MIC, R_MIC, two earphones in left and right respectively match a microphone；Bluetooth receives the VDD_IO foot connection power supply power supply electricity of chip U6
Road；
The BT_RF foot that bluetooth receives chip U6 connects receiving antenna ANT, and SPKR_RP foot, SPKR_RN foot connect auris dextra
The loudspeaker R_SP of machine, and SPKR_LP foot, SPKR_LN foot connect the loudspeaker R_SP of left earphone；The VBAT_ of bluetooth reception chip U6
SENSE foot and VBAT foot connect power-supplying circuit；The P1_5 foot connection Bluetooth transmission chip U6's of Bluetooth transmission chip U2
PI01 foot.
Bluetooth transmission chip U2 is connected with LED and key, and wherein its 37 foot is connected with LED1.
Bluetooth receives chip U6 and is connected with LED and key, and wherein key S3 connection bluetooth receives the K4 foot and electricity of chip U6
Source power supply circuit forms power switch control key, and key S1 and key S2 are then separately connected the E9 and E10 of Bluetooth control chip U6
Foot forms volume control key, and LED is then keyed with the K1 and J2 of Bluetooth control chip U6.
The bluetooth receives chip U6 and is also connected with TYPEC interface, and the K5 foot that TYPEC interface and bluetooth receive chip connects
It connects.
It further include having operational amplifier circuit, operational amplifier circuit includes operational amplifier U4-A and U4-B and corresponding peripheral circuit,
The model of two operational amplifiers is BA4510FV, and the two is connect with main control chip U1 respectively, and wherein operational amplifier U4-A
In the circuit of left earphone, left microphone is connected；Operational amplifier U4-B is located in the circuit of left earphone, connects right Mike
Wind.
It after the equipment such as mobile phone connect application program, is connected by apple lightning interface with receiver, user speaks recording
By Bluetooth transmission chip U2(IS1621) processing by recorded audio signals be transmitted to bluetooth receive chip U6(CSR8640), then lead to
Main control chip U1 control is crossed being loaded in application program of mobile phone end under recorded audio signals.
The utility model is described in detail above, it is described above, only the preferred embodiment of the utility model and
, when the utility model practical range cannot be limited, i.e., all according to the made equivalent changes and modifications of the application range, it should still belong to this
In utility model covering scope.
Claims (5)
1. a kind of bluetooth solid number of people sound-recording headphone includes two In-Ear Headphones in left and right and is matched with In-Ear Headphones
Lapel mike has circuit board in earphone, and the circuit of circuit board includes Bluetooth chip, governor circuit, horn assembly, control
Key, analog to digital conversion circuit and power-supplying circuit processed, Bluetooth chip are connected with antenna, and microphone connects Bluetooth chip, bluetooth
Chip and analog to digital conversion circuit connect governor circuit, and power-supplying circuit connects Bluetooth chip, it is characterised in that: the bluetooth core
Piece includes Bluetooth transmission chip U2 and bluetooth receives chip U6, and Bluetooth transmission chip U2 uses IS1621 chip, and bluetooth receives
Chip U6 uses CRS8640 chip；The main control chip U1 of governor circuit uses CY8C3446 chip；
Analog to digital conversion circuit use AK5357A chip, 9 feet, 10 feet, 11 feet, 12 feet, 13 feet respectively with main control chip U1 36
Foot, 35 feet, 34 feet, 33 feet, the connection of 32 feet, 16 feet, 17 feet of main control chip U1 are connected with LIGHTNING interface J1, and its 24
Foot and 25 feet are separately connected 6 feet and 2 feet of apple trusted authentication chip U5, and apple trusted authentication chip U5 uses MFI337 chip；
The KTX foot of Bluetooth transmission chip U2 is connected with transmitting antenna ANT1, and MIC_BIAS foot is connected with two microphone L_ of left and right
MIC, R_MIC, two earphones in left and right respectively match a microphone；The VDD_IO foot that bluetooth receives chip U6 connects power-supplying circuit；
The BT_RF foot that bluetooth receives chip U6 connects receiving antenna ANT, and SPKR_RP foot, SPKR_RN foot connect right earphone
Loudspeaker R_SP, and SPKR_LP foot, SPKR_LN foot connect the loudspeaker R_SP of left earphone；The VBAT_SENSE of bluetooth reception chip U6
Foot and VBAT foot connect power-supplying circuit；The PI01 foot of the P1_5 foot connection Bluetooth transmission chip U6 of Bluetooth transmission chip U2.
2. bluetooth solid number of people sound-recording headphone according to claim 1, it is characterised in that: the Bluetooth transmission chip U2 connects
It is connected to LED and key, wherein its 37 foot is connected with LED1.
3. bluetooth solid number of people sound-recording headphone according to claim 2, it is characterised in that: bluetooth receives chip U6 and is connected with
LED and key, wherein key S3 connection bluetooth receives the K4 foot of chip U6 and power-supplying circuit forms power switch control key,
Key S1 and key S2 be then separately connected Bluetooth control chip U6 E9 and E10 foot formed volume control key, LED then with bluetooth control
The K1 and J2 of coremaking piece U6 is keyed.
4. bluetooth solid number of people sound-recording headphone according to claim 3, it is characterised in that: the bluetooth receives chip U6 also
It is connected with TYPEC interface, TYPEC interface is connect with the K5 foot that bluetooth receives chip.
5. bluetooth solid number of people sound-recording headphone according to claim 3, it is characterised in that: it further include having operational amplifier circuit, fortune
Electric discharge road includes operational amplifier U4-A and U4-B and corresponding peripheral circuit, and the model of two operational amplifiers is
BA4510FV, the two are connect with main control chip U1 respectively, and wherein operational amplifier U4-A is located in the circuit of left earphone, connection
Left microphone；Operational amplifier U4-B is located in the circuit of left earphone, connects right microphone.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821485764.4U CN209030392U (en) | 2018-09-11 | 2018-09-11 | Bluetooth solid number of people sound-recording headphone |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821485764.4U CN209030392U (en) | 2018-09-11 | 2018-09-11 | Bluetooth solid number of people sound-recording headphone |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209030392U true CN209030392U (en) | 2019-06-25 |
Family
ID=66904421
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821485764.4U Expired - Fee Related CN209030392U (en) | 2018-09-11 | 2018-09-11 | Bluetooth solid number of people sound-recording headphone |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209030392U (en) |
-
2018
- 2018-09-11 CN CN201821485764.4U patent/CN209030392U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190625 Termination date: 20210911 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |