CN202841218U - USB interface apparatus and mobile phone - Google Patents
USB interface apparatus and mobile phone Download PDFInfo
- Publication number
- CN202841218U CN202841218U CN201220234533.2U CN201220234533U CN202841218U CN 202841218 U CN202841218 U CN 202841218U CN 201220234533 U CN201220234533 U CN 201220234533U CN 202841218 U CN202841218 U CN 202841218U
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Abstract
The utility model provides a USB interface apparatus and a mobile phone, suitable for the technical field of mobile communication phones. The USB interface apparatus comprises a connector, and a first resistor R101, a second resistor R102, a first magnetic bead L101, a second magnetic bead L102 and a third magnetic bead B101 respectively connected to lead ports of the connector. The USB interface apparatus provided by the utility model integrates a data line, an earphone cord, a UART serial port download line, a charging line, and a radio antenna, which is simple in structure and low in the cost, and saves an earphone jack.
Description
Technical field
The utility model belongs to mobile communication telephony field., relate in particular to a kind of USB interface device and mobile phone.
Background technology
In existing mobile phone, the USB device that is used for connecting external equipment is by analog switch, detects control IC etc. and realize that the All-in-One signal multiplexing carries out data and transmits; Can cause like this increase, signal attenuation of components and parts many, the cost of signal lag, whole design increases, the increase of PCB layout area is made troubles to the design ultra thin handset.
The utility model content
The purpose of this utility model is to provide a kind of simple in structure, USB interface device that cost is low.
The utility model is achieved in that a kind of USB interface device, comprising: connector, the first resistance R 101, the second resistance R 102, the first magnetic bead L101, the second magnetic bead L102, the 3rd magnetic bead B101; Described connector comprises: 10 lead-in wire ports; The first lead-in wire port PIN1 is connected with downloading wire UTXD1 by described the first resistance R 101, the second lead-in wire port PIN2 is connected with charging wire VCHG, the 3rd lead-in wire port PIN3 is connected with the VBAT line, the 4th lead-in wire port PIN4 is connected with the D-of usb data line, the 5th lead-in wire port PIN5 is connected with the XMP3_R of earphone cord by the second magnetic bead L102, the 6th lead-in wire port PIN6 is connected with the D+ of usb data line, the 7th lead-in wire port PIN7 is connected with downloading wire URXD1 by the second resistance R 102, the 7th lead-in wire port PIN7 also is connected with earphone cord XMP3_L by the first magnetic bead L101, the 8th lead-in wire port PIN8 is connected with PWRKEY, the 9th lead-in wire port PIN9 is connected with the XMICP of earphone cord, and the tenth lead-in wire port PIN10 is connected with GND by the 3rd magnetic bead B101.
Further, described USB interface device also comprises: the ESD device that plays anti-static electrification that is connected with described downloading wire UTXD1, usb data line, earphone cord, charging wire respectively.
Further, described ESD device is TVS pipe or piezo-resistance.
Another purpose of the present utility model is to provide a kind of mobile phone that comprises above-mentioned USB interface device.
The USB interface device that the utility model provides is data wire earphone cord UART serial port download line charging wire radio antenna five in one, and is simple in structure, cost is low, can also save an earphone socket.
Description of drawings
Fig. 1 is the physical circuit figure of the USB interface device that provides of the utility model embodiment; Wherein, A is usb data line circuit schematic diagram connection; B is earphone cord circuit theory diagrams connections; C is UART serial port download line circuit theory diagrams connections; D is charging wire circuit theory diagrams connections; E is radio antenna circuit theory diagrams connections.
Embodiment
In order to make the purpose of this utility model, technical scheme and advantage clearer, 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 explaining the utility model, and be not used in restriction the utility model.
The USB interface device that the utility model embodiment provides is a kind of MINI-USB-10PIN device with earphone cord UART serial port download line charging wire radio antenna five in one; Can realize the function of mobile phone usb data line earphone cord UART line charging wire radio antenna, need not to add analog switch, control circuit and interface detection module, both reduced the PCB layout area and also provided cost savings, also made things convenient for simultaneously designer's debugging test and user's use.
As shown in Figure 1, the usb data line carries out the data transmission by the pin of Fig. 1-A sign; Earphone cord carries out data by Fig. 1-B and transmits; The UART downloading wire carries out software by Fig. 1-C and downloads; Charging wire charges by Fig. 1-D; The radio antenna circuit by behind the magnetic bead B400 again connection layout 1-E as antenna.This MINI-USB-10PIN device comprises: usb data line circuit, earphone cord circuit, UART serial port download line circuit, charging wire circuit, radio antenna circuit; Thereby after inserting different equipment, automatically identify corresponding equipment by simple hardware circuit and software detection and realize corresponding function.
In the circuit of the MINI-USB-10PIN device of the mobile phone usb data line earphone cord UART serial port download line charging wire radio antenna five in one that the utility model provides, the PIN1 mouth of MINI-USB-10PIN data line end is connected with downloading wire UTXD1, MINI-USB-10PIN data line end the PIN2 mouth be connected with charging wire VCHG, the PIN3 mouth of MINI-USB-10PIN data wire is connected with the VBAT line, the PIN4 mouth of MINI-USB-10PIN data line end is connected with the D-of usb data line, the PIN5 mouth of MINI-USB-10PIN data line end is connected with the XMP3_R of earphone cord, the PIN6 mouth of MINI-USB-10PIN data line end is connected with the D+ of usb data line, the PIN7 mouth of MINI-USB-10PIN data line end and downloading wire URXD1, earphone cord XMP3_L connects, the PIN8 mouth of MINI-USB-10PIN data line end is connected with PWRKEY, the PIN9 mouth of MINI-USB-10PIN data line end is connected with the XMICP of earphone cord, and the PIN10 mouth of MINI-USB-10PIN data line end is connected with GND by magnetic bead B101.
In the utility model, as shown in Figure 1, J101 is the MINI-USB-10PIN connector.T101, T102, T103, T104, T105, T106, T107, T108 are the ESD device, mainly play anti-static electrification; R101 and R102 are protective resistance, prevent that flowing through the reverse current that comes from computer end causes that the software download is unusual.L101 and L102 are magnetic beads, TDD NOISE when preventing the earphone conversation; B101 is the high impedance magnetic bead, mainly is that the GND noise that filters away radio antenna disturbs, and improves the effect that broadcast receiver is received platform.Need satisfy VR=5V, IR=0.5UA, CT=30PF to parts selection parameter request: T101, T104, T105, T108 ESD device (TVS pipe); T102, T103 ESD device (TVS pipe) need satisfy VR=5V, IR=0.5UA, CT=0.5PF; T106, T107 ESD device (piezo-resistance) need satisfy CT=15pF, Vcl=50V, Vwm=18V; The B101 magnetic bead need satisfy impedance 1000 ± 25% ohm, rated current 1500mA.R101, R102 resistance need satisfy 1K, and+-5%, 1/16W; L101, L102 magnetic bead need satisfy: 220 ohm ± 25%, 700mA.
The USB interface device that the utility model provides is mainly used in the mobile phone, and mobile phone base band chip comprises: MT6253, MT6268, MT6252, MT6252D, MT6252C, MT6276, MT6573, MT6513, MT6225, MT6516, MT6223 platform.In order to illustrate further the utility model, it is as follows now in conjunction with Fig. 1 in detail the operation principle of this USB interface device to be described in detail: when the MINI-USB-10PIN connector is inserted into the usb data line, the D-of usb data line, D+, VCC, GND are connected with PIN4, PIN6, PIN3, the PIN10 of J101 respectively, what software detection will recognize insertion after the data is the usb data line, thereby reaches the purpose that usb data transmits; When the MINI-USB-10PIN connector is inserted into earphone cord, the L channel of earphone cord, R channel, microphone are anodal, the microphone negative pole is multiplexing with URXD1 with the PIN7(of J101 respectively), PIN5, PIN9, PIN10 be connected, what software detection will recognize insertion after the data is earphone cord, thereby enter headset mode, can carry out some associative operations under the earphone mould; When the MINI-USB-10PIN connector is inserted into the UART serial port download line, the TX of UART serial port download line, RX, VCC, GND, PWRKEY are connected with PIN1, PIN7, PIN3, PIN10, the PIN8 of J101 respectively, can be used for downloading cell phone software this moment, enter META pattern debugging radio frequency and be connected parameter with audio frequency, connect ATE plate survey instrument and carry out plate and survey; When the MINI-USB-10PIN connector is inserted into charging wire, the VCC of charging wire, GND respectively with the PIN2(VCHG of J101), PIN10 is connected, will charge to battery of mobile phone after this moment, VCHG detected normal voltage.When the MINI-USB-10PIN connector was inserted into radio antenna (being earphone), the GND line of earphone was connected to the PIN10 of J101, then passed through magnetic bead B101 ground connection as radio antenna, and can open broadcast receiver and use this moment.
The USB interface device that the utility model provides is data wire earphone cord UART serial port download line charging wire radio antenna five in one, and is simple in structure, cost is low, can also save an earphone socket.
The above only is preferred embodiment of the present utility model; not in order to limit the utility model; all any modifications of within spirit of the present utility model and principle, doing, be equal to and replace and improvement etc., all should be included within the protection range of the present utility model.
Claims (4)
1. a USB interface device is characterized in that, comprising: connector, the first resistance, the second resistance, the first magnetic bead, the second magnetic bead, the 3rd magnetic bead;
Described connector comprises: 10 lead-in wire ports; The first lead-in wire port PIN1 is connected with downloading wire UTXD1 by described the first resistance, the second lead-in wire port PIN2 is connected with charging wire VCHG, the 3rd lead-in wire port PIN3 is connected with the VBAT line, the 4th lead-in wire port PIN4 is connected with the D-of usb data line, the 5th lead-in wire port PIN5 is connected with the XMP3_R of earphone cord by the second magnetic bead, the 6th lead-in wire port PIN6 is connected with the D+ of usb data line, the 7th lead-in wire port PIN7 is connected with downloading wire URXD1 by the second resistance, the 7th lead-in wire port PIN7 also is connected with earphone cord XMP3_L by the first magnetic bead, the 8th lead-in wire port PIN8 is connected with PWRKEY, the 9th lead-in wire port PIN9 is connected with the XMICP of earphone cord, and the tenth lead-in wire port PIN10 is connected with GND by the 3rd magnetic bead.
2. USB interface device as claimed in claim 1 is characterized in that, described USB interface device also comprises: the ESD device that plays anti-static electrification that is connected with described downloading wire UTXD1, usb data line, earphone cord, charging wire respectively.
3. USB interface device as claimed in claim 2 is characterized in that, described ESD device is TVS pipe or piezo-resistance.
4. a mobile phone comprises the USB interface device, it is characterized in that, described USB interface device is each described USB interface device of claim 1-3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220234533.2U CN202841218U (en) | 2012-05-23 | 2012-05-23 | USB interface apparatus and mobile phone |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220234533.2U CN202841218U (en) | 2012-05-23 | 2012-05-23 | USB interface apparatus and mobile phone |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202841218U true CN202841218U (en) | 2013-03-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201220234533.2U Expired - Fee Related CN202841218U (en) | 2012-05-23 | 2012-05-23 | USB interface apparatus and mobile phone |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202841218U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105071795A (en) * | 2015-08-17 | 2015-11-18 | 广东欧珀移动通信有限公司 | Multiplex circuit based on USB interface |
| CN106034273A (en) * | 2015-03-19 | 2016-10-19 | 联想(北京)有限公司 | Control method and device and electronic equipment |
-
2012
- 2012-05-23 CN CN201220234533.2U patent/CN202841218U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106034273A (en) * | 2015-03-19 | 2016-10-19 | 联想(北京)有限公司 | Control method and device and electronic equipment |
| CN106034273B (en) * | 2015-03-19 | 2019-06-25 | 联想(北京)有限公司 | Control method, device and electronic equipment |
| CN105071795A (en) * | 2015-08-17 | 2015-11-18 | 广东欧珀移动通信有限公司 | Multiplex circuit based on USB interface |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130327 Termination date: 20170523 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |