CN205039797U - Compatible USB charges and audio transmission's interface circuit - Google Patents

Compatible USB charges and audio transmission's interface circuit Download PDF

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Publication number
CN205039797U
CN205039797U CN201520662136.9U CN201520662136U CN205039797U CN 205039797 U CN205039797 U CN 205039797U CN 201520662136 U CN201520662136 U CN 201520662136U CN 205039797 U CN205039797 U CN 205039797U
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China
Prior art keywords
resistance
audio
electric capacity
pin
usb interface
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CN201520662136.9U
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Chinese (zh)
Inventor
刘希
彭信龙
吴海全
师瑞文
彭久高
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Shenzhen Grandsun Electronics Co Ltd
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Shenzhen Grandsun Electronics Co Ltd
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Abstract

The utility model relates to an electronic equipment interface technical field especially relates to a compatible USB charges and audio transmission's interface circuit. The utility model discloses an in the embodiment, compatible USB charges and audio transmission's interface circuit includes the battery, the module of charging, USB interface and audio module controls, the module of charging respectively with the battery with USB interface connection, audio module controls respectively with the battery with USB interface connection. The utility model discloses an in the embodiment, compatible USB charges and audio transmission's interface circuit not only can charge for equipment through the USB interface, can carry out the transmission of audio frequency through the USB interface moreover, will charge with integrating with audio transmission and be in the same place, has improved resource utilization rate, saves space and the cost, and uses more convenient and fast.

Description

The interface circuit of a kind of compatible USB charging and audio transmission
Technical field
The utility model relates to electronic equipment interfaces technical field, particularly relates to the interface circuit of a kind of compatible USB charging and audio transmission.
Background technology
Existing mobile electronic device is as mobile phone, panel computer, MP3, MP4 etc., and all standard configuration has USB interface and audio transmission interfaces.USB interface is used for the charging of equipment or the transmission of data, and audio transmission interfaces is by the peripheral hardware such as frames connecting with headphone or microphone transmission of audio.
In traditional mobile electronic device, USB interface and audio transmission interfaces independently separate, and USB interface is only for charging or transmission data, and audio transmission interfaces, only for transmission of audio, not only affects attractive in appearance, uses inconvenience, and reduces the utilance of device resource.
Utility model content
The purpose of this utility model is to provide the interface circuit of a kind of compatible USB charging and audio transmission, is intended to the traditional USB interface of solution only for charging or transmitting data and traditional audio transmission interfaces only for problem that transmission of audio causes resource utilization to reduce.
The utility model is achieved in that the utility model provides the interface circuit of a kind of compatible USB charging and audio transmission, comprises battery, and the interface circuit of described compatible USB charging and audio transmission also comprises:
Be connected with described battery, to the charging module that described battery charges;
Be connected with described charging module, the USB interface of inputoutput data;
Be connected with described battery and described USB interface respectively, the audio frequency control module of transmission of audio.
Further, described USB interface adopts the female mouth of minitype USB interface of the female mouth of the mini USB interface of standard or standard;
The power end V_BUS of described USB interface connects described charging module; First data terminal DN, the second data terminal DP of described USB interface and the 3rd data terminal ID connect described audio frequency control module respectively; Described USB interface ground end GND ground connection.
Further, described charging module comprises charge controlling chip U1, the first resistance, the second resistance, the 3rd resistance, the 4th resistance, the 5th resistance, the first electric capacity and the second electric capacity;
The supply voltage input pin IN of described charge controlling chip U1 meets the power end V_BUS of described USB interface, simultaneously by described first electric capacity in parallel and described second capacity earth; The output pin OUT of described charge controlling chip U1 connects described battery; First charging current of described charge controlling chip U1 arranges pin ISET1 by described 4th grounding through resistance; The pre-charge current of described charge controlling chip U1 arranges pin PRETERM by described 5th grounding through resistance; The temperature detection pin TS of described charge controlling chip U1 is by described first grounding through resistance; The charging instruction pin CHG of described charge controlling chip U1 connects described battery by described second resistance; Second charging current of described charge controlling chip U1 arranges pin ISET2 by described 3rd grounding through resistance; The grounding pin ground connection of described charge controlling chip U1.
Further, described audio frequency control module comprises audio control chip U2, the 6th resistance, the 7th resistance, the 8th resistance, the 9th resistance, the 3rd electric capacity, the 4th electric capacity, the 5th electric capacity, the 6th electric capacity, the 7th electric capacity, the 8th electric capacity, the 9th electric capacity, the first indicator light, the second indicator light, switch, the first inductance and the second inductance;
The L channel output pin SPL_L_P of described audio control chip U2 meets the first data terminal DN of described USB interface; The R channel output pin SPL_R_P of described audio control chip U2 meets the second data terminal DP of described USB interface; The microphone of described audio control chip U2 controls pin MIC_BIAS connects described USB interface successively the 3rd data terminal ID by described first inductance, described 9th resistance and described second inductance; Described 4th electric capacity is connected between the first microphone input pin MIC_B_N of described audio control chip U2 and the common port of described first inductance and described 9th resistance; Described 5th electric capacity is connected between the second microphone input pin MIC_B_P of described audio control chip U2 and the common port of described second inductance and described 9th resistance; Between the common port that described 6th electric capacity is connected on described first inductance and described 9th resistance and ground; Between the common port that described 7th electric capacity is connected on described second inductance and described 9th resistance and ground; Between the common port that described 8th electric capacity is connected on the 3rd data terminal ID of described second inductance and described USB interface and ground; The power pins VDD_BAT of described audio control chip U2 connects described battery, simultaneously by described 9th capacity earth; The first instruction pin LED0 of described audio control chip U2 connects the negative pole of described first indicator light by described 6th resistance, the positive pole of described first indicator light connects described battery; The second instruction pin LED1 of described audio control chip U2 connects the negative pole of described second indicator light by described 7th resistance, the positive pole of described second indicator light connects described battery; The input and output pin PIO15 of described audio control chip U2 connects described battery by described 8th resistance of series connection and described switch; The reset pin RESET of described audio control chip U2 is by described 3rd capacity earth; The grounding pin ground connection of described audio control chip U2.
In embodiment of the present utility model, the interface circuit of described compatible USB charging and audio transmission comprises battery, charging module, USB interface and audio frequency control module; Described charging module is connected with described battery and described USB interface respectively, and described audio frequency control module is connected with described battery and described USB interface respectively.In embodiment of the present utility model, the interface circuit of described compatible USB charging and audio transmission can be not only equipment charge by USB interface, and the transmission of audio frequency can be carried out by USB interface, charging and audio transmission are combined, improve resource utilization, save space and cost, and use more convenient and quicker.
Accompanying drawing explanation
Fig. 1 is the module map of the interface circuit of the compatible USB charging that provides of the utility model embodiment and audio transmission;
Fig. 2 is the circuit diagram of the interface circuit of the compatible USB charging that provides of the utility model embodiment and audio transmission.
Embodiment
In order to make the purpose of this utility model, technical scheme and advantage clearly understand, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the utility model, and be not used in restriction the utility model.
Fig. 1 shows the module map of the interface circuit of compatible USB charging that the utility model embodiment provides and audio transmission.For convenience of explanation, illustrate only the part relevant to the utility model embodiment.
An interface circuit for compatible USB charging and audio transmission, comprises battery 1, and the interface circuit of described compatible USB charging and audio transmission also comprises:
Be connected with battery 1, to the charging module 2 that battery 1 charges;
Be connected with charging module 2, the USB interface 4 of inputoutput data;
Be connected with battery 1 and USB interface 4 respectively, the audio frequency control module 3 of transmission of audio.
Fig. 2 shows the circuit diagram of the interface circuit of compatible USB charging that the utility model embodiment provides and audio transmission.For convenience of explanation, illustrate only the part relevant to the utility model embodiment.
As an embodiment of the present utility model, USB interface 4 adopts the female mouth of minitype USB interface of the female mouth of the mini USB interface of standard or standard;
The power end V_BUS of USB interface 4 connects charging module 2; First data terminal DN, the second data terminal DP of USB interface 4 and the 3rd data terminal ID connect audio frequency control module 3 respectively; USB interface 4 ground end GND ground connection.
Charging module 2 comprises charge controlling chip U1, the first resistance R1, the second resistance R2, the 3rd resistance R3, the 4th resistance R4, the 5th resistance R5, the first electric capacity C1 and the second electric capacity C2;
The supply voltage input pin IN of charge controlling chip U1 meets the power end V_BUS of USB interface 4, simultaneously by the first electric capacity C1 in parallel and the second electric capacity C2 ground connection; The output pin OUT of charge controlling chip U1 connects battery; First charging current of charge controlling chip U1 arranges pin ISET1 by the 4th resistance R4 ground connection; The pre-charge current of charge controlling chip U1 arranges pin PRETERM by the 5th resistance R5 ground connection; The temperature detection pin TS of charge controlling chip U1 is by the first resistance R1 ground connection; The charging instruction pin CHG of charge controlling chip U1 connects battery by the second resistance R2; Second charging current of charge controlling chip U1 arranges pin ISET2 by the 3rd resistance R3 ground connection; The grounding pin ground connection of charge controlling chip U1.
Audio frequency control module 3 comprises audio control chip U2, the 6th resistance R6, the 7th resistance R7, the 8th resistance R8, the 9th resistance R9, the 3rd electric capacity C3, the 4th electric capacity C4, the 5th electric capacity C5, the 6th electric capacity C6, the 7th electric capacity C7, the 8th electric capacity C8, the 9th electric capacity C9, the first indicator light LED3, the second indicator light LED4, switch S, the first inductance L 1 and the second inductance L 2;
The L channel output pin SPL_L_P of audio control chip U2 meets the first data terminal DN of USB interface; The R channel output pin SPL_R_P of audio control chip U2 meets the second data terminal DP of USB interface; The microphone of audio control chip U2 controls pin MIC_BIAS connects USB interface successively the 3rd data terminal ID by the first inductance L 1, the 9th resistance R9 and the second inductance L 2; 4th electric capacity C4 is connected between the first microphone input pin MIC_B_N of audio control chip U2 and the common port of the first inductance L 1 and the 9th resistance R9; 5th electric capacity C5 is connected between the second microphone input pin MIC_B_P of audio control chip U2 and the common port of the second inductance L 2 and the 9th resistance R9; Between the common port that 6th electric capacity C6 is connected on the first inductance L 1 and the 9th resistance R9 and ground; Between the common port that 7th electric capacity C7 is connected on the second inductance L 2 and the 9th resistance R9 and ground; Between the common port that 8th electric capacity C8 is connected on the 3rd data terminal ID of the second inductance L 2 and USB interface and ground; The power pins VDD_BAT of audio control chip U2 connects battery 1, simultaneously by the 9th electric capacity C9 ground connection; The first instruction pin LED0 of audio control chip U2 connects the negative pole of the first indicator light LED3 by the 6th resistance R6, the positive pole of the first indicator light LED3 connects battery 1; The second instruction pin LED1 of audio control chip U2 connects the negative pole of the second indicator light LED4 by the 7th resistance R7, the positive pole of the second indicator light LED4 connects battery 1; The input and output pin PIO15 of audio control chip U2 connects battery 1 by the 8th resistance R8 of series connection and switch S; The reset pin RESET of audio control chip U2 is by the 3rd electric capacity C3 ground connection; The grounding pin ground connection of audio control chip U2.
In embodiment of the present utility model, the interface circuit of described compatible USB charging and audio transmission comprises battery, charging module, USB interface and audio frequency control module; Described charging module is connected with described battery and described USB interface respectively, and described audio frequency control module is connected with described battery and described USB interface respectively.In embodiment of the present utility model, the interface circuit of described compatible USB charging and audio transmission can be not only equipment charge by USB interface, and the transmission of audio frequency can be carried out by USB interface, charging and audio transmission are combined, improve resource utilization, save space and cost, and use more convenient and quicker.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all do within spirit of the present utility model and principle any amendment, equivalent to replace and improvement etc., all should be included within protection range of the present utility model.

Claims (4)

1. an interface circuit for compatible USB charging and audio transmission, comprises battery, it is characterized in that, the interface circuit of described compatible USB charging and audio transmission also comprises:
Be connected with described battery, to the charging module that described battery charges;
Be connected with described charging module, the USB interface of inputoutput data;
Be connected with described battery and described USB interface respectively, the audio frequency control module of transmission of audio.
2. the interface circuit of compatible USB charging as claimed in claim 1 and audio transmission, is characterized in that, described USB interface adopts the female mouth of minitype USB interface of the female mouth of the mini USB interface of standard or standard;
The power end V_BUS of described USB interface connects described charging module; First data terminal DN, the second data terminal DP of described USB interface and the 3rd data terminal ID connect described audio frequency control module respectively; Described USB interface ground end GND ground connection.
3. the interface circuit of compatible USB charging as claimed in claim 2 and audio transmission, it is characterized in that, described charging module comprises charge controlling chip U1, the first resistance, the second resistance, the 3rd resistance, the 4th resistance, the 5th resistance, the first electric capacity and the second electric capacity;
The supply voltage input pin IN of described charge controlling chip U1 meets the power end V_BUS of described USB interface, simultaneously by described first electric capacity in parallel and described second capacity earth; The output pin OUT of described charge controlling chip U1 connects described battery; First charging current of described charge controlling chip U1 arranges pin ISET1 by described 4th grounding through resistance; The pre-charge current of described charge controlling chip U1 arranges pin PRETERM by described 5th grounding through resistance; The temperature detection pin TS of described charge controlling chip U1 is by described first grounding through resistance; The charging instruction pin CHG of described charge controlling chip U1 connects described battery by described second resistance; Second charging current of described charge controlling chip U1 arranges pin ISET2 by described 3rd grounding through resistance; The grounding pin ground connection of described charge controlling chip U1.
4. the interface circuit of compatible USB charging as claimed in claim 2 and audio transmission, it is characterized in that, described audio frequency control module comprises audio control chip U2, the 6th resistance, the 7th resistance, the 8th resistance, the 9th resistance, the 3rd electric capacity, the 4th electric capacity, the 5th electric capacity, the 6th electric capacity, the 7th electric capacity, the 8th electric capacity, the 9th electric capacity, the first indicator light, the second indicator light, switch, the first inductance and the second inductance;
The L channel output pin SPL_L_P of described audio control chip U2 meets the first data terminal DN of described USB interface; The R channel output pin SPL_R_P of described audio control chip U2 meets the second data terminal DP of described USB interface; The microphone of described audio control chip U2 controls pin MIC_BIAS connects described USB interface successively the 3rd data terminal ID by described first inductance, described 9th resistance and described second inductance; Described 4th electric capacity is connected between the first microphone input pin MIC_B_N of described audio control chip U2 and the common port of described first inductance and described 9th resistance; Described 5th electric capacity is connected between the second microphone input pin MIC_B_P of described audio control chip U2 and the common port of described second inductance and described 9th resistance; Between the common port that described 6th electric capacity is connected on described first inductance and described 9th resistance and ground; Between the common port that described 7th electric capacity is connected on described second inductance and described 9th resistance and ground; Between the common port that described 8th electric capacity is connected on the 3rd data terminal ID of described second inductance and described USB interface and ground; The power pins VDD_BAT of described audio control chip U2 connects described battery, simultaneously by described 9th capacity earth; The first instruction pin LED0 of described audio control chip U2 connects the negative pole of described first indicator light by described 6th resistance, the positive pole of described first indicator light connects described battery; The second instruction pin LED1 of described audio control chip U2 connects the negative pole of described second indicator light by described 7th resistance, the positive pole of described second indicator light connects described battery; The input and output pin PIO15 of described audio control chip U2 connects described battery by described 8th resistance of series connection and described switch; The reset pin RESET of described audio control chip U2 is by described 3rd capacity earth; The grounding pin ground connection of described audio control chip U2.
CN201520662136.9U 2015-08-28 2015-08-28 Compatible USB charges and audio transmission's interface circuit Active CN205039797U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201520662136.9U CN205039797U (en) 2015-08-28 2015-08-28 Compatible USB charges and audio transmission's interface circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201520662136.9U CN205039797U (en) 2015-08-28 2015-08-28 Compatible USB charges and audio transmission's interface circuit

Publications (1)

Publication Number Publication Date
CN205039797U true CN205039797U (en) 2016-02-17

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
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Country Status (1)

Country Link
CN (1) CN205039797U (en)

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GR01 Patent grant
C14 Grant of patent or utility model
CP01 Change in the name or title of a patent holder

Address after: Longgang District of Shenzhen City, Guangdong province 518116 Ping Street Takahashi Industrial Park East Area

Patentee after: SHENZHE GUANXU ELECTRONIC CO., LTD.

Address before: Longgang District of Shenzhen City, Guangdong province 518116 Ping Street Takahashi Industrial Park East Area

Patentee before: Shenzhen Grandsun Electronic Co., Ltd.

C56 Change in the name or address of the patentee