CN202111352U - Multiplexing circuit of Micro USB connector - Google Patents
Multiplexing circuit of Micro USB connector Download PDFInfo
- Publication number
- CN202111352U CN202111352U CN2011201949078U CN201120194907U CN202111352U CN 202111352 U CN202111352 U CN 202111352U CN 2011201949078 U CN2011201949078 U CN 2011201949078U CN 201120194907 U CN201120194907 U CN 201120194907U CN 202111352 U CN202111352 U CN 202111352U
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- usb
- interface
- earphone
- analoging switch
- usb connector
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Abstract
The utility model relates to a multiplexing circuit, especially a multiplexing circuit of a Micro USB connector, comprising a four-way analog switch U401, the Micro USB connector, an earphone interface, an I2C communication device interface and a product USB interface, wherein the four-way analog switch U401 is in switch connection with the USB of the GPIO pin of a central processor, the 1A end of the four-way analog switch U401 is connected with the USB DM end of the Micro USB connector, the 2A end of the four-way analog switch U401 is connected with the USB DP end of the Micro USB connector, and the 3B1 end of the four-way analog switch U401 is connected with the earphone left channel line of the earphone interface. According to the utility model, a mobile phone, PDA and digital camera having a single Micro 5Pin USB interface can use a Micro 5PIN USB, an earphone and an I2C communication device through a same interface on the basis of using a standard USB line.
Description
Technical field
The utility model relates to multiplex circuit, relates in particular to a kind of multiplex circuit of Micro USB connector.
Background technology
At present, portable digital the use more and more widely such as mobile phone, PDA, digital camera, extensibility requires increasingly high, and the main way that reaches this requirement at present is to use 8 PIN and more connector or a plurality of connector of multiway number.But mobile phone, PDA, digital camera use 8 PIN and more the connected device of multiway number can not use standard USB line, be prone to have problem after sale, and cause accessory waste, use a plurality of connectors, be unfavorable for the attractive in appearance of product appearance and product miniaturization.And the mobile phone, PDA, digital camera that have only Micro 5 PIN USB interfaces can't use Micro 5 PIN USB, earphone and I2C communication apparatus through same interface on the basis of the standard of use USB line.
Summary of the invention
In order to solve the problems of the prior art, the utility model provides a kind of multiplex circuit of Micro USB connector.
The utility model provides a kind of multiplex circuit of Micro USB connector; Comprise four path analoging switch U401, Micro USB connector, earphone interface, I2C communication apparatus interface and product USB interface; Wherein, The 1S end of said four path analoging switch U401 is connected with the USB switching of the GPIO pin of central processing unit; The 1A end of said four path analoging switch U401 is connected with the USB DM end of Micro USB connector, and the 2A end of said four path analoging switch U401 is connected with the USB DP end of Micro USB connector, and the 3B1 end of said four path analoging switch U401 is connected with the earphone L channel line of earphone interface; The 3B0 end of said four path analoging switch U401 is connected with the SCLK end of I2C communication apparatus interface; The 4B1 end of said four path analoging switch U401 is connected with the earphone R channel line of earphone interface, and the 4B0 end of said four path analoging switch U401 is connected with the SDA end of I2C communication apparatus interface, and the 1B1 end of said four path analoging switch U401 is connected with the USB DM end of product USB interface; The 1B0 end of said four path analoging switch U401 is connected with its 4A end; The 2B1 of said four path analoging switch U401 holds with the USB DP end of product USB interface and is connected, and the 2B0 end of said four path analoging switch U401 is connected with its 3A end, and the 2S end of said four path analoging switch is connected with the earphone of the GPIO pin of central processing unit/I2C switching.
As the further improvement of the utility model, said four path analoging switch U401 are the FSA2467 chip.
As the further improvement of the utility model, the USB 5V of said Micro USB connector end is connected with the USB 5V end of said product USB interface.
As the further improvement of the utility model, the MIC of said Micro USB connector end is connected with the ear microphone line of said earphone interface.
As the further improvement of the utility model, the GND/FM of said Micro USB connector
-The ANT end is connected with the earphone ground wire/reception antenna of said earphone interface.
The beneficial effect of the utility model is: through such scheme; The mobile phone, PDA, digital camera that have only Micro 5 PIN USB interfaces can use Micro 5 PIN USB, earphone and I2C communication apparatus through same interface on the basis of the standard of use USB line.
Description of drawings
Fig. 1 is the circuit diagram of the multiplex circuit of a kind of Micro USB connector of the utility model.
Embodiment
Below in conjunction with description of drawings and embodiment the utility model is further specified.
Drawing reference numeral among Fig. 1 is: Micro USB connector 1; Earphone interface 2; I2C communication apparatus interface 3; Product USB interface 4.
As shown in Figure 1; A kind of multiplex circuit of Micro USB connector; Comprise four path analoging switch U401, Micro USB connector 1, earphone interface 2, I2C communication apparatus interface 3 and product USB interface 4; Wherein, the 1S of said four path analoging switch U401 end is connected with the USB switching of the GPIO pin of central processing unit, and the 1A end of said four path analoging switch U401 is connected with the USB DM end of Micro USB connector 1; The 2A end of said four path analoging switch U401 is connected with the USB DP end of Micro USB connector 1; The 3B1 end of said four path analoging switch U401 is connected with the earphone L channel line of earphone interface 2, and the 3B0 end of said four path analoging switch U401 is connected with the SCLK end of I2C communication apparatus interface 3, and the 4B1 end of said four path analoging switch U401 is connected with the earphone R channel line of earphone interface 2; The 4B0 end of said four path analoging switch U401 is connected with the SDA end of I2C communication apparatus interface 3; The 1B1 end of said four path analoging switch U401 is connected with the USB DM end of product USB interface 4, and the 1B0 end of said four path analoging switch U401 is connected with its 4A end, and the 2B1 end of said four path analoging switch U401 is connected with the USB DP end of product USB interface 4; The 2B0 end of said four path analoging switch U401 is connected with its 3A end, and the 2S end of said four path analoging switch is connected with the earphone of the GPIO pin of central processing unit/I2C switching.
As shown in Figure 1, said four path analoging switch U401 are the FSA2467 chip.
As shown in Figure 1, the USB 5V end of said Micro USB connector 1 is connected with the USB 5V end of said product USB interface 4.
As shown in Figure 1, the MIC end of said Micro USB connector 1 is connected with the ear microphone line of said earphone interface 2.
As shown in Figure 1, the GND/FM of said Micro USB connector 1
-The ANT end is connected with the earphone ground wire/reception antenna of said earphone interface 2.
As shown in Figure 1; The multiplex circuit of a kind of Micro USB connector that the utility model provides, the switching of I2C communication apparatus interface 3 and earphone interface 2 is accomplished by the GPIO of central control unit, and acquiescence is at the earphone state; When using the I2C communication; Switch to the I2C circuit again, the switching of I2C communication apparatus interface 3, earphone interface 2 and product USB interface 4 also is that acquiescence is at I2C communication apparatus interface 3 by the GPIO completion of central control unit; Earphone interface 2 states switch to product USB interface 4 again after the USB of product USB interface 4 5V increases 5V voltage.
The multiplex circuit of a kind of Micro USB connector that the utility model provides; Solved the existing mobile phone that has only Micro 5 PIN USB interfaces, PDA, digital camera can not be on the basis of the standard of use USB line; Can use the problem of Micro 5 PIN USB interfaces, earphone and I2C communication apparatus through same interface, reach the multiplexing of USB, earphone, I2C circuit.
Above content is the further explain that combines concrete preferred implementation that the utility model is done, and can not assert that the practical implementation of the utility model is confined to these explanations.For the those of ordinary skill of technical field under the utility model, under the prerequisite that does not break away from the utility model design, can also make some simple deduction or replace, all should be regarded as belonging to the protection range of the utility model.
Claims (5)
1. the multiplex circuit of a Micro USB connector; It is characterized in that: comprise four path analoging switch U401, Micro USB connector, earphone interface, I2C communication apparatus interface and product USB interface; Wherein, The 1S end of said four path analoging switch U401 is connected with the USB switching of the GPIO pin of central processing unit; The 1A end of said four path analoging switch U401 is connected with the USB DM end of Micro USB connector, and the 2A end of said four path analoging switch U401 is connected with the USB DP end of Micro USB connector, and the 3B1 end of said four path analoging switch U401 is connected with the earphone L channel line of earphone interface; The 3B0 end of said four path analoging switch U401 is connected with the SCLK end of I2C communication apparatus interface; The 4B1 end of said four path analoging switch U401 is connected with the earphone R channel line of earphone interface, and the 4B0 end of said four path analoging switch U401 is connected with the SDA end of I2C communication apparatus interface, and the 1B1 end of said four path analoging switch U401 is connected with the USB DM end of product USB interface; The 1B0 end of said four path analoging switch U401 is connected with its 4A end; The 2B1 of said four path analoging switch U401 holds with the USB DP end of product USB interface and is connected, and the 2B0 end of said four path analoging switch U401 is connected with its 3A end, and the 2S end of said four path analoging switch is connected with the earphone of the GPIO pin of central processing unit/I2C switching.
2. the multiplex circuit of Micro USB connector according to claim 1 is characterized in that: said four path analoging switch U401 are the FSA2467 chip.
3. the multiplex circuit of Micro USB connector according to claim 1 is characterized in that: the USB 5V end of said Micro USB connector is connected with the USB 5V end of said product USB interface.
4. the multiplex circuit of Micro USB connector according to claim 1 is characterized in that: the MIC end of said Micro USB connector is connected with the ear microphone line of said earphone interface.
5. the multiplex circuit of Micro USB connector according to claim 1 is characterized in that: the GND/FM of said Micro USB connector
-The ANT end is connected with the earphone ground wire/reception antenna of said earphone interface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201949078U CN202111352U (en) | 2011-06-10 | 2011-06-10 | Multiplexing circuit of Micro USB connector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201949078U CN202111352U (en) | 2011-06-10 | 2011-06-10 | Multiplexing circuit of Micro USB connector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202111352U true CN202111352U (en) | 2012-01-11 |
Family
ID=45436801
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201949078U Expired - Fee Related CN202111352U (en) | 2011-06-10 | 2011-06-10 | Multiplexing circuit of Micro USB connector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202111352U (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015066924A1 (en) * | 2013-11-11 | 2015-05-14 | 华为终端有限公司 | Terminal device |
| CN104833351A (en) * | 2014-02-08 | 2015-08-12 | 深圳富泰宏精密工业有限公司 | Compass, portable electronic device and direction positioning system |
| CN105227702A (en) * | 2015-05-28 | 2016-01-06 | 盛耀无线通讯科技（北京）有限公司 | A kind of bilateral cell phone platform USB socket |
| CN105305185A (en) * | 2015-09-24 | 2016-02-03 | 上海斐讯数据通信技术有限公司 | Connector base for multiplex serial interface and I2C interface |
| CN107145213A (en) * | 2017-04-21 | 2017-09-08 | 广东浪潮大数据研究有限公司 | A kind of device and method being multiplexed for PCH MEdebug and USB port |
| CN104459376B (en) * | 2014-11-18 | 2018-03-23 | 青岛海信移动通信技术股份有限公司 | A kind of interface circuit and peripherals detecting method, outer sensor based on the circuit |
| CN109491933A (en) * | 2018-11-12 | 2019-03-19 | 安克创新科技股份有限公司 | A kind of Micro usb circuit |
| CN110492575A (en) * | 2019-09-05 | 2019-11-22 | 深圳传音控股股份有限公司 | For the quick charging system and method for handheld device, handheld device |
| CN110518668A (en) * | 2019-09-05 | 2019-11-29 | 深圳传音控股股份有限公司 | For the quick charging system and method for handheld device, handheld device |
| WO2020063590A1 (en) * | 2018-09-26 | 2020-04-02 | 华为技术有限公司 | Multiplexing circuit and mobile terminal |
-
2011
- 2011-06-10 CN CN2011201949078U patent/CN202111352U/en not_active Expired - Fee Related
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015066924A1 (en) * | 2013-11-11 | 2015-05-14 | 华为终端有限公司 | Terminal device |
| CN104833351A (en) * | 2014-02-08 | 2015-08-12 | 深圳富泰宏精密工业有限公司 | Compass, portable electronic device and direction positioning system |
| CN104459376B (en) * | 2014-11-18 | 2018-03-23 | 青岛海信移动通信技术股份有限公司 | A kind of interface circuit and peripherals detecting method, outer sensor based on the circuit |
| CN105227702A (en) * | 2015-05-28 | 2016-01-06 | 盛耀无线通讯科技（北京）有限公司 | A kind of bilateral cell phone platform USB socket |
| CN105305185A (en) * | 2015-09-24 | 2016-02-03 | 上海斐讯数据通信技术有限公司 | Connector base for multiplex serial interface and I2C interface |
| CN107145213A (en) * | 2017-04-21 | 2017-09-08 | 广东浪潮大数据研究有限公司 | A kind of device and method being multiplexed for PCH MEdebug and USB port |
| CN107145213B (en) * | 2017-04-21 | 2020-05-19 | 苏州浪潮智能科技有限公司 | Device and method for multiplexing PCH MEdebug and USB port |
| WO2020063590A1 (en) * | 2018-09-26 | 2020-04-02 | 华为技术有限公司 | Multiplexing circuit and mobile terminal |
| US11445276B2 (en) | 2018-09-26 | 2022-09-13 | Honor Device Co., Ltd. | Multiplexing circuit and mobile terminal |
| CN109491933A (en) * | 2018-11-12 | 2019-03-19 | 安克创新科技股份有限公司 | A kind of Micro usb circuit |
| CN110492575A (en) * | 2019-09-05 | 2019-11-22 | 深圳传音控股股份有限公司 | For the quick charging system and method for handheld device, handheld device |
| CN110518668A (en) * | 2019-09-05 | 2019-11-29 | 深圳传音控股股份有限公司 | For the quick charging system and method for handheld device, handheld device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120111 Termination date: 20140610 |