CN210488537U - Data transmission circuit, device and electronic equipment based on TYPE-C interface - Google Patents
Data transmission circuit, device and electronic equipment based on TYPE-C interface Download PDFInfo
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- CN210488537U CN210488537U CN201921426072.7U CN201921426072U CN210488537U CN 210488537 U CN210488537 U CN 210488537U CN 201921426072 U CN201921426072 U CN 201921426072U CN 210488537 U CN210488537 U CN 210488537U
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Abstract
The embodiment of the utility model discloses data transmission circuit, device and electronic equipment based on TYPE-C interface, including setting up the interface seat on the mainboard, the interface seat has the first pin group that is used for transmitting first USB3.0 signal, the second pin group that is used for transmitting second USB3.0 signal to and the third pin group that is used for transmitting USB2.0 signal; first pin group, second pin group and third pin group all connect TYPE-C interface, therefore for prior art, the embodiment of the utility model provides a through set up the interface seat that has USB3.0 and USB2.0 data transmission function at the mainboard end, two sets of USB3.0 signals are connected to TYPE-C interface simultaneously, have remain data transmission function commonly used, and can realize the positive reverse function of inserting of data, need not to increase conversion chip, simplified the product design scheme, realized the independent data transmission function with the minimum cost, improve the whole price/performance ratio of the product that itself has the function of charging and showing.
Description
Technical Field
The utility model relates to a data interface technical field especially relates to a data transmission circuit, device and electronic equipment based on TYPE-C interface.
Background
The design principle of the TYPE-C interface (also called USB-C interface) is that a hardware interface specification of a Universal Serial Bus (USB) is adopted, the TYPE-C interface is commonly used by consumers at present, most of the TYPE-C design schemes of products on the market are generally full-function design, namely, the TYPE-C interface design schemes simultaneously have functions of charging, displaying, data transmission and the like, however, partial electronic products have AC charging and other display devices such as HDMI, VGA, LCD and the like, if the full-function TYPE-C design is adopted, the originally existing charging and displaying functions can be repeatedly added, the product design is complicated, the product design cost is seriously increased, the interface waste is caused, and the cost performance of the product is reduced.
SUMMERY OF THE UTILITY MODEL
To the above technical problem, the embodiment of the utility model provides a data transmission circuit, device and electronic equipment based on TYPE-C interface aims at solving among the prior art full function TYPE-C interface and causes the interface extravagant in partial electronic equipment, reduces the problem of producing the cost performance ratio.
A first aspect of the embodiments of the present invention provides a data transmission circuit based on a TYPE-C interface, including an interface seat disposed on a motherboard, the interface seat having a first pin group for transmitting a first USB3.0 signal, a second pin group for transmitting a second USB3.0 signal, and a third pin group for transmitting a USB2.0 signal; the first pin group, the second pin group and the third pin group are all connected with a TYPE-C interface.
Optionally, the first pin group includes a first transmitting pin, a second transmitting pin, a first receiving pin and a second receiving pin of the first USB3.0 signal.
Optionally, the second pin group includes a third transmit pin, a fourth transmit pin, a third receive pin, and a fourth receive pin of the second USB3.0 signal.
Optionally, the third pin group includes a first data pin and a second data pin of a USB2.0 signal.
Optionally, the data transmission circuit based on the TYPE-C interface further includes a first filtering module for filtering the first USB3.0 signal, where the first filtering module is connected to the first transmitting pin and the second transmitting pin.
Optionally, the data transmission circuit based on the TYPE-C interface further includes a second filtering module for filtering a second USB3.0 signal, and the second filtering module is connected to the third transmitting pin and the fourth transmitting pin.
Optionally, the first filtering module includes a first capacitor and a second capacitor, one end of the first capacitor is connected to the first transmit pin, and the other end of the first capacitor is connected to the TYPE-C interface; one end of the second capacitor is connected with the second transmitting pin, and the other end of the second capacitor is connected with the TYPE-C interface.
Optionally, the second filtering module includes a third capacitor and a fourth capacitor, one end of the third capacitor is connected to the third transmit pin, and the other end of the third capacitor is connected to the TYPE-C interface; one end of the fourth capacitor is connected with the fourth transmitting pin, and the other end of the fourth capacitor is connected with the TYPE-C interface.
The embodiment of the utility model provides a second aspect provides a data transmission device based on TYPE-C interface, including the PCB board, be provided with on the PCB board as above the data transmission circuit based on TYPE-C interface.
The embodiment of the utility model provides a third aspect provides an electronic equipment, electronic equipment includes as above data transmission device based on TYPE-C interface.
In the technical solution provided in the present invention, the data transmission circuit based on TYPE-C interface includes an interface seat disposed on the motherboard, the interface seat has a first pin group for transmitting a first USB3.0 signal, a second pin group for transmitting a second USB3.0 signal, and a third pin group for transmitting a USB2.0 signal; first pin group, second pin group and third pin group all connect TYPE-C interface, therefore for prior art, the embodiment of the utility model provides a through set up the interface seat that has USB3.0 and USB2.0 data transmission function at the mainboard end, two sets of USB3.0 signals are connected to TYPE-C interface simultaneously, have remain data transmission function commonly used, and can realize the positive reverse function of inserting of data, need not to increase conversion chip, simplified the product design scheme, realized the independent data transmission function with the minimum cost, improve the whole price/performance ratio of the product that itself has the function of charging and showing.
Drawings
Fig. 1 is a circuit diagram of a data transmission circuit based on the TYPE-C interface provided by the embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by those skilled in the art without creative efforts belong to the protection scope of the present invention.
Referring to fig. 1, a data transmission circuit based on a TYPE-C interface according to an embodiment of the present invention includes an interface seat 10 disposed on a motherboard, where the interface seat 10 has a first pin group for transmitting a first USB3.0 signal, a second pin group for transmitting a second USB3.0 signal, and a third pin group for transmitting a USB2.0 signal; the first pin group, the second pin group and the third pin group are all connected with a TYPE-C interface.
In this embodiment, three sets of signal pins are set up at the mainboard end, including two sets of USB3.0 signals and a set of USB2.0 signal, two sets of USB3.0 signals are connected to TYPE-C interface simultaneously, can realize the transmission function of inserting data positively and negatively, realized USB3.0/USB 2.0's data transmission function under the prerequisite that does not increase USB3.0 switching chip, make and to realize single data transmission on the equipment that has partly already been charged and shows the function, the TYPE-C scheme of supporting positive and negative function of inserting, CPU only need provide two sets of USB3.0 signals and be connected to TYPE-C interface simultaneously through this interface seat 10 can, need not to increase the TYPE-C chip or the USB3.0 switching chip of full function, avoid causing the extravagant and the problem of equipment cost increase of interface.
Further, the first pin group includes a first transmitting pin, a second transmitting pin, a first receiving pin and a second receiving pin of the first USB3.0 signal, and the specific USB3.0 signal includes two pairs of pins, each pair includes two pins, which are respectively a transmitting pin and a receiving pin, as shown in fig. 1, the first USB3.0 signal provided by the CPU includes TXP1, TXN1, RXP1 and RXN1, and the first pin group for transmitting the first USB3.0 signal on the corresponding interface socket 10 includes a first transmitting pin SSTXp1, a second transmitting pin SSTXn1, a first receiving pin ssp 1 and a second rxrxssn 1.
Correspondingly, the second pin group includes a third transmitting pin, a fourth transmitting pin, a third receiving pin and a fourth receiving pin of the second USB3.0 signal, as shown in fig. 1, the second USB signal provided by the CPU includes TXP2, TXN2, RXP2 and RXN2, and the second pin group for transmitting the second USB3.0 signal on the corresponding interface pad 10 includes a third transmitting pin SSTXp2, a fourth transmitting pin SSTXn2, a third receiving pin SSRXp2 and a fourth receiving pin SSRXn 2. Namely the utility model provides a data transmission circuit based on TYPE-C interface sets up two sets of pin groups that are used for connecting first USB3.0 signal and second USB3.0 signal respectively through the symmetry on the interface pad 10 of mainboard end for when realizing single data transmission's TPYE-C scheme, need not to increase extra conversion chip, CPU directly provides two sets of USB3.0 signals and TYPE-C interface connection and can realize positive and negative data transmission function, the TYPE-C single data transmission scheme of low cost has been realized, improve and produce the cost performance.
Further, the third pin group comprises a first data pin and a second data pin of a USB2.0 signal. In this embodiment, the interface socket 10 is further provided with a first data pin USB _ DP and a second data pin USB _ DN for transmitting USB2.0 signals, that is, the first data pin and the second data pin are respectively a positive data pin and a negative data pin for transmitting USB2.0 signals, so that not only USB3.0 signal transmission but also transmission of USB2.0 data signals can be realized, and no other conversion chip is required in the middle, thereby effectively improving the cost performance and market competitiveness of the product.
Further, the data transmission circuit based on the TYPE-C interface further includes a first filtering module 20 for filtering a first USB3.0 signal, where the first filtering module 20 is connected to the first transmit pin and the second transmit pin, specifically, the first filtering module 20 includes a first capacitor C1 and a second capacitor C2, one end of the first capacitor C1 is connected to the first transmit pin SSTXp1, and the other end of the first capacitor C1 is connected to the TYPE-C interface; one end of the second capacitor C2 is connected with the second emission pin SSTxn1, the other end of the second capacitor C2 is connected with the TYPE-C interface, and the filtering is performed by serially connecting capacitors on the first emission pin and the second emission pin, so that the transmission process of the first USB3.0 signal is stable and free of interference, and the stability of the TYPE-C interface data transmission is improved.
Furthermore, the data transmission circuit based on the TYPE-C interface further includes a second filtering module 30 for filtering a second USB3.0 signal, where the second filtering module 30 is connected to a third transmit pin and a fourth transmit pin, specifically, the second filtering module 30 includes a third capacitor C3 and a fourth capacitor C4, one end of the third capacitor C3 is connected to the third transmit pin SSTXp2, and the other end of the third capacitor C3 is connected to the TYPE-C interface; fourth electric capacity C4's one end is connected fourth transmission pin SSTxn2, TYPE-C interface is connected to the other end of fourth electric capacity C4, and similarly, series capacitance carries out the filtering on third transmission pin and fourth transmission pin respectively, improves second USB3.0 signal transmission's stability, guarantees the anti jamming capability when TYPE-C interface is positive and negative to insert the realization data transmission.
Preferably, the pin CC1 of the socket is further connected in series with a first resistor R1 to ground, and the pin CC2 of the socket is further connected in series with a second resistor R2 to ground, so that the pin CC1 and the pin CC2 of the socket are reliably grounded and maintained at a low level, and normal operation of the socket is ensured.
The above is the embodiment of the utility model provides a data transmission circuit based on TYPE-C interface describes, it is right below the utility model provides an in data transmission device based on TYPE-C interface describe, the embodiment of the utility model provides an in data transmission device based on TYPE-C interface includes the PCB board, be provided with on the PCB board as above data transmission circuit based on TYPE-C interface, because the above has been right data transmission circuit based on TYPE-C interface has carried out detailed description, and this is not repeated.
The above is the embodiment of the utility model provides a data transmission device based on TYPE-C interface describes, it is following to the utility model provides an in the embodiment of electronic equipment describe, the embodiment of the utility model provides an in the embodiment of electronic equipment include as above data transmission device based on TYPE-C interface, because the above-mentioned has been right data transmission device based on TYPE-C interface has carried out detailed description, and this is not repeated.
To sum up, in the technical solution provided in the embodiment of the present invention, the data transmission circuit based on the TYPE-C interface includes an interface seat disposed on the motherboard, the interface seat has a first pin group for transmitting a first USB3.0 signal, a second pin group for transmitting a second USB3.0 signal, and a third pin group for transmitting a USB2.0 signal; first pin group, second pin group and third pin group all connect TYPE-C interface, therefore for prior art, the embodiment of the utility model provides a through set up the interface seat that has USB3.0 and USB2.0 data transmission function at the mainboard end, two sets of USB3.0 signals are connected to TYPE-C interface simultaneously, have remain data transmission function commonly used, and can realize the positive reverse function of inserting of data, need not to increase conversion chip, simplified the product design scheme, realized the independent data transmission function with the minimum cost, improve the whole price/performance ratio of the product that itself has the function of charging and showing.
The above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.
Claims (10)
1. A data transmission circuit based on a TYPE-C interface is characterized by comprising an interface seat arranged on a mainboard, wherein the interface seat is provided with a first pin group used for transmitting a first USB3.0 signal, a second pin group used for transmitting a second USB3.0 signal and a third pin group used for transmitting a USB2.0 signal; the first pin group, the second pin group and the third pin group are all connected with a TYPE-C interface.
2. The TYPE-C interface-based data transmission circuit of claim 1, wherein the first pin group comprises a first transmit pin, a second transmit pin, a first receive pin, and a second receive pin of a first USB3.0 signal.
3. The TYPE-C interface-based data transmission circuit of claim 1, wherein the second pin group comprises a third transmit pin, a fourth transmit pin, a third receive pin, and a fourth receive pin of a second USB3.0 signal.
4. The TYPE-C interface-based data transmission circuit of claim 1, wherein the third pin set comprises a first data pin and a second data pin of a USB2.0 signal.
5. The TYPE-C interface-based data transmission circuit of claim 2, further comprising a first filtering module for filtering the first USB3.0 signal, the first filtering module being connected to the first transmit pin and the second transmit pin.
6. The TYPE-C interface-based data transmission circuit of claim 3, further comprising a second filtering module for filtering a second USB3.0 signal, the second filtering module being connected to the third transmit pin and the fourth transmit pin.
7. The TYPE-C interface-based data transmission circuit according to claim 5, wherein the first filtering module comprises a first capacitor and a second capacitor, one end of the first capacitor is connected to the first transmitting pin, and the other end of the first capacitor is connected to the TYPE-C interface; one end of the second capacitor is connected with the second transmitting pin, and the other end of the second capacitor is connected with the TYPE-C interface.
8. The TYPE-C interface-based data transmission circuit according to claim 6, wherein the second filtering module comprises a third capacitor and a fourth capacitor, one end of the third capacitor is connected to the third transmitting pin, and the other end of the third capacitor is connected to the TYPE-C interface; one end of the fourth capacitor is connected with the fourth transmitting pin, and the other end of the fourth capacitor is connected with the TYPE-C interface.
9. A data transmission device based on TYPE-C interface, comprising a PCB board, wherein the PCB board is provided with the data transmission circuit based on TYPE-C interface as claimed in any one of claims 1 to 8.
10. An electronic device, characterized in that the electronic device comprises a TYPE-C interface-based data transmission apparatus according to claim 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921426072.7U CN210488537U (en) | 2019-08-30 | 2019-08-30 | Data transmission circuit, device and electronic equipment based on TYPE-C interface |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201921426072.7U CN210488537U (en) | 2019-08-30 | 2019-08-30 | Data transmission circuit, device and electronic equipment based on TYPE-C interface |
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| CN210488537U true CN210488537U (en) | 2020-05-08 |
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| CN201921426072.7U Active CN210488537U (en) | 2019-08-30 | 2019-08-30 | Data transmission circuit, device and electronic equipment based on TYPE-C interface |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112186446A (en) * | 2020-09-07 | 2021-01-05 | 苏州浪潮智能科技有限公司 | USB interface expansion device and electronic equipment |
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2019
- 2019-08-30 CN CN201921426072.7U patent/CN210488537U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112186446A (en) * | 2020-09-07 | 2021-01-05 | 苏州浪潮智能科技有限公司 | USB interface expansion device and electronic equipment |
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